COMMTOUCH SOFTWARE LTD
F-1/A, 2000-03-28
COMMUNICATIONS SERVICES, NEC
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As filed with the Securities and Exchange Commission on March   , 2000
                                                 Registration No. 333-31836
================================================================================

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                                 ---------------
                                AMENDMENT NO. 1
                                       TO
                                    FORM F-1
                             REGISTRATION STATEMENT
                                      Under
                           THE SECURITIES ACT OF 1933


                             COMMTOUCH SOFTWARE LTD.
             (Exact name of Registrant as specified in its charter)
<TABLE>
<CAPTION>
<S>                                      <C>                                   <C>
             Israel                                  7389                         Not Applicable
(State or other jurisdiction of          (Primary Standard Industrial           (I.R.S. Employer
 incorporation or organization)           Classification Code Number)          Identification No.)
</TABLE>
                                6 Hazoran Street
                      Poleg Industrial Park, P.O. Box 8511
                              Netanya 42504, Israel
                               011-972-9-863-6888
    (Address, including zip code, and telephone number, including area code,
                  of Registrant's principal executive offices)

                           c/o Commtouch Software Inc.
                    James E. Collins, Chief Financial Officer
                         3945 Freedom Circle, Suite 400
                          Santa Clara, California 95054
                                 (408) 653-4330
 (Name, address, including zip code, and telephone number, including area code,
                        of agent for service of process)
<TABLE>
<CAPTION>
                                             Copies to:
<S>                       <C>                       <C>                        <C>
    Lior O. Nuchi           Aaron M. Lampert            David B. Miller           Barry P. Levenfeld
  Venrice R. Palmer        Noga Devesceri Spira     P. Graham van der Leeuw     Sheryl Silver Ochayon
Irene  Song Sharkansky    Naschitz, Brandes & Co.    Michael K. Coddington        Yigal Arnon & Co.
  McCutchen,  Doyle,         5 Tuval Street           Faegre & Benson LLP           22 Rivlin St.
 Brown & Enersen, LLP     Tel Aviv 67987 Israel     90 South Seventh Street        P.O. Box 33777
 3150  Porter  Drive                                 Minneapolis, MN 55402     Jerusalem, 91000 Israel
 Palo Alto, CA 94304
</TABLE>
        Approximate date of commencement of proposed sale to the public:
   As soon as practicable after the Registration Statement becomes effective.

     If  any  of  the securities being registered on this Form are to be offered
on  a  delayed or continuous basis pursuant to Rule 415 under the Securities Act
of 1933, please check the following box. [ ]

     If  this  Form  is  filed to register additional securities for an offering
pursuant  to  Rule  462(b)  under the Securities Act, please check the following
box  and  list  the  Securities Act registration statement number of the earlier
effective registration statement for the same offering. [ ]

     If  this  Form  is a post-effective amendment filed pursuant to Rule 462(c)
under  the  Securities  Act, check the following box and list the Securities Act
registration  statement  number  of the earlier effective registration statement
for the same offering. [ ]

     If  this  Form  is a post-effective amendment filed pursuant to Rule 462(d)
under  the  Securities  Act, check the following box and list the Securities Act
registration  statement  number  of the earlier effective registration statement
for the same offering. [ ]

     If  delivery of the prospectus is expected to be made pursuant to Rule 434,
please check the following box. [ ]

     The  Registrant  hereby  amends this Registration Statement on such date or
dates  as  may  be  necessary  to  delay its effective date until the Registrant
shall  file a further amendment which specifically states that this Registration
Statement  shall  thereafter become effective in accordance with Section 8(a) of
the  Securities  Act  of  1933  or until the Registration Statement shall become
effective  on such date as the Commission, acting pursuant to said Section 8(a),
may determine.

================================================================================

<PAGE>

The  information  in  this prospectus is not complete and may be changed. We may
not  sell these securities until the Securities and Exchange Commission declares
our  registration  statement  effective. This prospectus is not an offer to sell
these  securities  and is not soliciting an offer to buy these securities in any
state where the offer or sale is not permitted.


                   Subject to completion, dated March 8, 2000


3,000,000 Shares

COMMTOUCH SOFTWARE LTD.

Ordinary Shares                                    Commtouch (R)

$  .   per share
- --------------------------------------------------------------------------------

o Commtouch  Software  Ltd. is offering  o Our  ordinary  shares  are  currently
  1,669,000    shares    and    selling    traded on the Nasdaq  National Market
  shareholders  are offering  1,331,000    under the symbol  "CTCH." On March 7,
  shares.                                  2000,  the last reported  sales price
                                           of an  ordinary  share on the  Nasdaq
                                           National Market was $62.00 per share.


                        -------------------------------




This investment involves risk. See "Risk Factors" beginning on page 7.




================================================================================

                                                            Per Share     Total
                                                           -----------   -------
Public offering price .................................     $            $
Underwriting discounts ................................     $            $
Proceeds to Commtouch .................................     $            $
Proceeds to selling shareholders ......................     $            $

================================================================================

The  underwriters  have  a  30-day  option  to purchase up to 450,000 additional
ordinary shares from us to cover over-allotments, if any.

Neither  the  Securities  and  Exchange  Commission  nor  any  state  securities
commission   has   approved  of  anyone's  investment  in  these  securities  or
determined  if  this  prospectus  is truthful or complete. Any representation to
the contrary is a criminal offense.


The Israel Securities  Authority has granted us an exemption from the obligation
to publish an Israeli prospectus relating to this offering. This exemption shall
not be construed as a determination that this prospectus is truthful or complete
or as an expression of opinion as to the securities offered.


U.S. Bancorp Piper Jaffray

             Thomas Weisel Partners LLC

                           Warburg Dillon Read LLC

                                        William Blair & Company


                 The date of this prospectus is March __, 2000.


<PAGE>

                               TABLE OF CONTENTS




<TABLE>
<CAPTION>
                                                                                        Page
                                                                                       ------
<S>                                                                                     <C>
Summary .............................................................................    4
Risk Factors ........................................................................    7
Use of Proceeds .....................................................................   18
Market Price and Price Range for Ordinary Shares ....................................   18
Dividend Policy .....................................................................   19
Capitalization ......................................................................   20
Dilution ............................................................................   21
Selected Consolidated Financial Information .........................................   22
Management's Discussion and Analysis of Financial Condition and Results of Operations   23
Business ............................................................................   30
Management ..........................................................................   45
Certain Transactions ................................................................   56
Principal and Selling Shareholders ..................................................   60
Description of Share Capital ........................................................   62
Shares Eligible for Future Sale .....................................................   66
U.S. Tax Considerations Regarding Ordinary Shares Acquired by U.S. Taxpayers ........   68
Israeli Taxation and Investment Programs ............................................   71
Conditions In Israel ................................................................   76
Underwriting ........................................................................   78
Legal Matters .......................................................................   80
Experts .............................................................................   80
ISA Exemption .......................................................................   80
Where You Can Find More Information .................................................   81
Enforceability of Civil Liabilities .................................................   81
Index to Consolidated Financial Statements ..........................................  F-1
</TABLE>



                        -------------------------------


You  should  rely  only on the information contained in this prospectus. We have
not,  and  the underwriters have not, authorized any other person to provide you
with  different  information. This prospectus is not an offer to sell, nor is it
seeking  an  offer to buy, these securities in any state where the offer or sale
is  not  permitted.  The information in this prospectus is complete and accurate
as  of  the  date on the front cover, but the information may have changed since
that date.


                                       3


<PAGE>

- --------------------------------------------------------------------------------

                                    SUMMARY

The  items  in  the following summary are described in more detail later in this
prospectus.  This  summary provides an overview of selected information and does
not  contain all the information you should consider. Therefore, you should also
read  the  more  detailed  information set out in this prospectus, the financial
statements  and  the  other  information  incorporated  by  reference  into this
prospectus.


Unless  otherwise  indicated,  all references in this prospectus to "Commtouch,"
"the  Company,"  "we,"  "us" or "our"  are to  Commtouch  Software  Ltd.  or its
wholly-owned  subsidiaries,  Commtouch  Software,  Inc. and Commtouch  (UK) Ltd.
Except  as set  forth in the  Consolidated  Financial  Statements  and the Notes
thereto, or as otherwise  indicated,  all information in this prospectus assumes
the  issuance of 901,471  ordinary  shares  upon the assumed net  exercise at an
assumed share price of $62.00 per share of an  in-the-money  warrant to purchase
1,136,000 ordinary shares issued to Go2Net,  Inc. at an exercise price of $12.80
per share.




Commtouch

We  are  a  leading global provider of outsourced integrated Web-based email and
messaging   solutions   to   businesses.  Our  solutions  are  flexible,  highly
customizable  and  enable  us to satisfy the unique email and messaging needs of
our  customers worldwide. Our customers are large and small businesses who offer
our Web-based email through their websites to their end users and employees.


Email  is  one  of  the  most  widely  used applications on the Internet and has
become  a primary platform for business and personal communication. According to
Forrester  Research, over 80% of Internet users access their email while online,
making  this  activity  the most popular use of the Internet. International Data
Corporation  estimates  that  at  the  end  of  1999 there were over 180 million
emailboxes  in  the  United  States  and  over 130 million outside of the United
States.  IDC  projects  that  by the end of 2003, these numbers will increase to
over  280  million  emailboxes  in  the  United  States  and  over  305  million
emailboxes outside the United States.


As  of  December  31,  1999,  we  had  over  250  global  customers. Through our
customers'  sites  we serve approximately 8.4 million active emailboxes. We also
serve  over  1.0  million  active  emailboxes  to  small businesses and websites
through  our  ZapZone  Network.  Our comprehensive Web-based email and messaging
solutions offer the following benefits:


o Extensive  email  features.  Our services are easy to use, and include a broad
  set of email  capabilities,  including a highly  integrated  contact  book and
  calendar.

o Ability to support hundreds of millions of emailboxes. Our system architecture
  and software  platform have been  designed to support  hundreds of millions of
  emailboxes  across  millions of domains while  maintaining  a highly  reliable
  service.


o Customization.  Our customers use our proprietary  customization  tool to make
  the look and feel of their Web-based email interface consistent with their own
  brand image.

o Rapidly deployable and cost-effective  solutions. Our solutions can be quickly
  implemented and can save our customers the significant costs of developing and
  maintaining an email service in-house.


o Extensive  language  capabilities.  Our email  services  are  available  in 18
  languages.  Additionally,  we can support more than one language on any of our
  customers' websites.


o Increased  website usage. We believe that our services  increase the frequency
  and duration of users' visits to our customers' websites.


- --------------------------------------------------------------------------------

                                       4

<PAGE>

- --------------------------------------------------------------------------------

o Online marketing  capabilities.  Our customers and third parties selling goods
  and services online can leverage our services and the demographic  information
  of  our  end  users  to  conduct  one-to-one  direct  marketing  and  targeted
  advertising campaigns.


Office Location

Our  principal  executive  offices  are  located  at  6  Hazoran  Street,  Poleg
Industrial   Park,   Netanya  42504,  Israel,  where  our  telephone  number  is
011-972-9-863-6888,  and  3945  Freedom  Circle,  Santa Clara, California 95054,
where  our  telephone  number  is  (408)  653-4330.  Our  website  addresses are
www.commtouch.com  and www.zzn.com. The information contained on our websites is
not a part of this prospectus.

<TABLE>
The Offering
<S>                                                <C>
Ordinary shares offered:

    By Commtouch Software Ltd.  .................. 1,669,000 shares
    By selling shareholders  ..................... 1,331,000 shares
                                                   ---------
         Total   ................................. 3,000,000 shares


Ordinary shares outstanding after the offering     18,131,449 shares


Offering price   ................................. $      per share

Use of proceeds  ................................. Expansion of sales and marketing
                                                   activities; capital expenditures; expansion
                                                   of research and development activities;
                                                   expansion of international operations;
                                                   working capital and other general
                                                   corporate purposes. See "Use of
                                                   Proceeds." We will not receive any of the
                                                   proceeds from the sale of the shares by the
                                                   selling shareholders in this offering.

NASDAQ National Market Symbol   .................. CTCH
</TABLE>


- ------------



Except  as set  forth in the  Consolidated  Financial  Statements  and the Notes
thereto  included as part of this  prospectus  and as otherwise  specified,  all
information  in this  prospectus  (except  for the  information  set forth above
regarding the ordinary  shares offered and the ordinary shares to be outstanding
after the offering,  which includes  shares being offered by the Company in this
prospectus)  is based on the number of shares  outstanding  as of  February  29,
2000,and:

    o  assumes  the  issuance  of 901,471  ordinary  shares upon the assumed net
       exercise  at  an  assumed  share  price  of  $62.00  per  share   of  the
       in-the-money  warrant to purchase  1,136,000  ordinary  shares  issued to
       Go2Net, at an exercise price of $12.80 per share;
    o  with respect to financial information, is reported in U.S. dollars;

and does not include:


    o  1,370,792  ordinary  shares  issuable to employees and  consultants  upon
       exercise of  outstanding  options  under our stock option plans and stock
       option  agreements as of February 29, 2000 at a weighted average exercise
       price of $21.20 per share;


- --------------------------------------------------------------------------------

                                       5

<PAGE>

- --------------------------------------------------------------------------------


    o  2,544,439  ordinary  shares  available for future grant or issuance under
       our stock option plans as of February 29, 2000; and

    o  381,180  ordinary  shares  issuable upon  exercise of options  granted to
       executive  officers  and  directors as of February 29, 2000 at a weighted
       average exercise price of $20.41 per share.




Summary Consolidated Financial Data
(in thousands, except per share data)

<TABLE>
The  following  tables  set  forth  our summary consolidated financial data. You
should  read  the following information together with our Consolidated Financial
Statements  and  the Notes thereto beginning on page F-1 of this prospectus, the
information   under   "Selected   Consolidated   Financial   Information"   and
"Management's  Discussion  and  Analysis  of  Financial Condition and Results of
Operations."
<CAPTION>
                                                                 Year Ended December 31,
                                                         -------------------------------------
                                                           1997          1998          1999
                                                         --------      --------      ---------
                                                          (in thousands, except per share data)
<S>                                                      <C>           <C>           <C>
Consolidated Statement of Operations Data:
Revenues:
 Email services  ....................................    $     --      $    389      $   4,251
 Software licenses, maintenance and services   ......         899            --             --
                                                         --------      --------      ---------
   Total revenues   .................................         899           389          4,251
Operating loss   ....................................      (3,405)       (4,025)       (21,083)
Net loss   ..........................................      (3,473)       (4,351)       (19,851)
Basic and diluted net loss per share  ...............       (2.40)        (3.00)         (2.65)
Weighted average number of shares -- basic
 and diluted  .......................................       1,450         1,450          7,487
</TABLE>

The following data is presented:

    o  on an actual basis; and

    o  on a pro  forma  as  adjusted  basis  to give  effect  to (1) the sale of
       1,669,000 ordinary shares in this offering,  at an assumed offering price
       of $62.00 per share (after deducting estimated underwriting discounts and
       commissions  and  estimated  offering  expenses)  and (2) the issuance of
       901,471 ordinary shares upon the assumed net exercise at an assumed share
       price of $62.00 per share,  of an  in-the-money  warrant  held by Go2Net,
       Inc. to purchase  1,136,000  ordinary  shares an exercise price of $12.80
       per share.


                                                            December 31, 1999
                                                         -----------------------
                                                                      Pro Forma
                                                         Actual      As Adjusted
                                                         ------      -----------
                                                             (in thousands)
Consolidated Balance Sheet Data:
  Cash and cash equivalents ............................ $ 65,996      $162,912
  Marketable securities ................................   18,050        18,050
  Working capital ......................................   88,053       184,969
  Total assets .........................................  100,336       197,252
  Long-term liabilities ................................      497           497
  Shareholders' equity .................................   95,312       192,228



- --------------------------------------------------------------------------------

                                       6

<PAGE>

                                 RISK FACTORS

You  should  carefully  consider the following risk factors before you decide to
buy  our ordinary shares. You should also consider the other information in this
prospectus.  If  any  of  the  following  risks  actually  occur,  our business,
financial  condition,  operating  results  or  cash  flows  could  be materially
adversely  affected.  This  could cause the trading price of our ordinary shares
to decline, and you could lose part or all of your investment.

This  prospectus  contains  forward-looking  statements  that  involve risks and
uncertainties.   These  statements  relate  to  our  future  plans,  objectives,
beliefs,   expectations   and  intentions.  In  some  cases,  you  can  identify
forward-looking   statements   by   our   use   of   words  such  as  "expects,"
"anticipates,"  "believes,"  "intends,"  "plans,"  "seeks"  and  "estimates" and
similar   expressions.  You  will  find  forward-looking  statements  under  the
captions  "Summary," "Risk Factors," "Use of Proceeds," "Management's Discussion
and  Analysis  of  Financial Condition and Results of Operations" and "Business"
and  elsewhere  in  this  prospectus.  Our  actual  results, levels of activity,
performance  or  achievements  may  differ  materially  from  those expressed or
implied  by  these  forward-looking  statements.  Factors  that  could  cause or
contribute  to  these differences include those discussed below and elsewhere in
this prospectus.


Risks Relating to the Company


Because  we  have  a  limited  operating  history  as  a Web-based email service
provider, it is difficult to evaluate our business and prospects.

We  commenced  operations  in  1991, but we began commercially selling Web-based
email  services  only  in  1998 after changing our strategic focus from the sale
and  service  of  stand-alone  email  client software products for mainframe and
personal  computers.  This  change  required us to adjust our business processes
and  to  restructure  Commtouch  to  become  a Web-based email service provider.
Therefore,  we  have only a limited operating history as a provider of Web-based
email services upon which you can evaluate our business and prospects.


We have a history of losses and may never achieve profitability.

We  incurred  net  losses of approximately $3.5 million in 1997, $4.4 million in
1998  and  $19.9 million in 1999. As of December 31, 1999, we had an accumulated
deficit  of  approximately  $31.5 million. We have not achieved profitability in
any  period,  and  we expect to continue to incur net losses for the foreseeable
future.

We  have  invested  heavily  in  technology  and  infrastructure development. We
expect  to  continue  to  spend  substantial  financial  and  other resources on
developing  and  introducing  new  service offerings and expanding our sales and
marketing  organizations,  strategic relationships and operating infrastructure.
We  expect  that  our expenses will continue to increase in absolute dollars. If
our  revenues  do  not  correspondingly  increase,  our  operating  results  and
financial  condition will be negatively affected. We may never attain sufficient
revenues  to  achieve  profitability. If we do achieve profitability, we may not
sustain  or  increase  profitability in the future. This may, in turn, cause our
stock price to decline.


Our   future  email  services  revenues  are  unpredictable  and  our  quarterly
operating  results  may  fluctuate  and  fluctuations could adversely affect the
value of your investment.

Because  we have a limited operating history in the provision of Web-based email
services  and because of the emerging nature of the markets in which we compete,
our  revenue  is  unpredictable.  Our current and future expense levels are to a
large  extent  fixed.  We may be unable to adjust spending quickly to compensate
for  any  revenue shortfall, and any significant revenue shortfall would have an
immediate negative effect on our results of operations and stock price.

A  number  of  factors,  many  of  which  are  enumerated in this "Risk Factors"
section,  are  likely  to  cause  fluctuations  in  our operating results. Other
factors which may cause such fluctuations include:

    o  the size, timing and fulfillment of orders for our email services;


                                       7

<PAGE>


    o  the receipt or payment of irregular or nonrecurring revenues or expenses;

    o  our mix of service  offerings,  including  our  ability  to  successfully
       implement new services;

    o  pricing of our services; and

    o  effectiveness of our customer support.

Because  of these factors, period-to-period comparisons of our operating results
are  not  a  good  indication  of  our future performance. It is likely that our
operating results in some quarters will be below market expectations.

We  have  recently  changed our fee structure and cannot predict the effect this
change will have on our future revenues.

In  recent  months  we  have  moved from a pricing strategy based primarily on a
share  of  advertising  revenues  with a minimum annual service fee to one based
primarily  on  charging a per-emailbox fee with a minimum annual commitment fee.
While  we  believe  that this new fee structure will result in a higher and more
predictable  revenue  stream  compared  with one based on a share of advertising
revenues,  we  cannot  predict whether this new pricing strategy will in fact be
successful  in  generating  higher and more predictable revenues. We may need to
change our pricing strategy again from time to time.


If  the  market  for our Web-based email services does not grow rapidly, we will
fail to generate revenues.

Our  success will depend on the widespread acceptance and use of Web-based email
by  our  customers  as  a  means to increase the value of their services or as a
means  of  communication.  The  market  for  Web-based email services is new and
rapidly  evolving.  We  cannot estimate the size or growth rate of the potential
market  for  our  service  offerings. If the market for Web-based email fails to
grow  or  grows  more  slowly  than  we  currently anticipate, our business will
suffer  dramatically.  Even  if  that  market grows, our service may not achieve
broad  market  acceptance.  Since we have only recently introduced our services,
we  do  not  have  sufficient  experience  to evaluate whether they will achieve
broad  market  acceptance.  Also, because all of our revenue is derived directly
or  indirectly from our Web-based email solutions, if that market does not grow,
our business will likely fail.


If  we do not expand our sales and marketing organization we will not be able to
increase our revenues.

Our  ability to increase our revenues will depend on our ability to successfully
expand  our  sales  and  marketing  organization. The complexity of our Internet
messaging  services  and  the  emerging  nature  of  the  Web-based email market
require  highly  trained  sales  and  marketing personnel to educate prospective
customers  regarding  the  use and benefits of our services. The majority of our
sales  and  marketing  personnel  have  only  recently joined Commtouch and have
limited  experience  working  together. It will take time for these employees to
learn  how  to  market  our  solutions  and  to be integrated into our sales and
marketing  organization. Some of them may not succeed in making this transition.
Additionally,  we  are planning to introduce additional services that we have no
experience  marketing  and  will rely on these services to produce a substantial
portion  of  our revenues in the future. As a result of these factors, our sales
and  marketing  organization may not be able to compete successfully against the
bigger   and   more   experienced  sales  and  marketing  organizations  of  our
competitors.


Even  if our email services are successful with our customers, we may not derive
revenue  from the users of the emailboxes, which would prevent our business from
growing.


Even  if  our  services are a success with our customers, we will not succeed if
we  do not derive revenue from the email users that our customers give us access
to.  We  plan to derive revenue from these email users primarily by charging our
customers  per-emailbox  fees  for  our  email  services,  as well as by selling
access  to  email  users  for  direct  marketing  services  and from the sale of
advertisements  that  the  email users will see. If one or more of these revenue
sources is not successful, we will not succeed. To



                                       8
<PAGE>

date,  we  have  generated  only  limited  revenue  from these potential revenue
sources  and  they  may  not be successful. Our existing and potential customers
may  not  be  willing  to  pay  for  our  email services. Advertisers and direct
marketers  may  not  accept  email  as  a  means  of  placing advertisements and
conducting  direct  marketing  and  email  users  may not want to receive direct
marketing materials.

Our  ability  to  generate  revenues  from  the emailbox base that our customers
bring  to us also depends on the emailboxes being used on a regular basis. On an
ongoing  basis,  many  of our end users will not regularly use their emailboxes,
and  a significant number will cease using our services each month. Accordingly,
there  may  be  no  relationship between the number of active emailboxes and our
revenues.


We  have  a  strategic  relationship  with  Go2Net pursuant to which we issued a
warrant  to  Go2Net  that  diluted  our  shareholders,  but  we  may not realize
substantial  revenues  or  other  business  benefits  from  this  or any similar
transaction.


We  entered  into  a  strategic relationship with Go2Net simultaneously with the
closing  of  our initial public offering. Our Customized Web-Based Email Service
Agreement  with  Go2Net  provides  that  we  share revenues from advertising and
premium  services  offered  to Go2Net's end users through our email service. The
terms  of this agreement are substantially the same as our commercial agreements
with  other  customers  except  that  we  have agreed that Go2Net will receive a
materially  greater portion of advertising revenues than other customers receive
under  other  similar  agreements.  As  part  of  this transaction, we issued to
Go2Net  a  warrant  to  purchase  up to 1,136,000 ordinary shares at an exercise
price  of  $12.80  per  share.  This warrant is exercisable at any time until it
expires  on  July  16, 2004. We agreed to register these shares, the warrant and
the  shares  issuable  upon  exercise  of  the  warrant  with the Securities and
Exchange  Commission and the registration statement relating to those securities
became  effective  on  January  7,  2000.  Exercise  of  the  warrant will cause
existing  investors  significant  dilution.  However,  we  may  not  realize any
revenues  or  any  other business benefits from this strategic relationship with
Go2Net  because  we  and  Go2Net  may not be able to sell significant amounts of
advertising  and  premium Web-based email services to Go2Net's end users. In the
future,  we  may  have  to  issue  in-the-money warrants to acquire our ordinary
shares  to customers who provide us with a large base of potential end users. We
may  also  have  to provide these customers with more favorable commercial terms
than  we have previously provided to our customers. The issuance of in-the-money
warrants  and  the grant of more favorable terms to customers may further dilute
our  shareholders, increase our operating loss in the future and cause our stock
price to fall.



We  entered  into  an  email  services  agreement  with Microsoft Corporation in
connection  with  which  we  issued  a  warrant  to  Microsoft  that diluted our
shareholders,  but  we  may  not  realize substantial revenues or other business
benefits from this transaction.

We  entered  into  an  Email  Services  Agreement  dated  October  26, 1999 with
Microsoft  Corporation.  Under  this  agreement,  Commtouch will, at Microsoft's
option,  customize,  host  and maintain email services for Microsoft websites in
the  U.S.  and  internationally. Microsoft will pay one-time fees for the set-up
and  customization  of  the email service for each website with respect to which
Microsoft  chooses  to  use  our services, as well as quarterly service fees for
the  email  service  based  on  the  number of mailboxes hosted. The term of the
agreement  shall  continue for 12 months after the first commercial distribution
date  of  the  email  service  and  Microsoft  may  extend the initial term on a
quarterly  or  annual basis upon 60 days prior written notice. The agreement may
be  terminated  by Microsoft for convenience upon 90 days' prior written notice,
or  by  either  party  upon  a material breach by the other party upon the terms
specified  in  the agreement. In connection with the agreement, Commtouch issued
to  Microsoft  a  warrant,  exercisable  until  December  29,  1999, to purchase
707,965  of Commtouch's ordinary shares at an exercise price of $28.25 per share
for  an aggregate exercise price of approximately $20.0 million. On December 29,
1999,  Microsoft exercised the warrant and now holds 707,965 ordinary shares. We
agreed  to  register  these  shares with the Commission. The registration became
effective  on  January  7, 2000. However, we may not realize any revenues or any
other   business  benefits  from  this  transaction  because  Microsoft  is  not
obligated  to use our services with respect to any website and has not agreed to
provide us with any other business benefits.



                                       9
<PAGE>

We  depend  on  our  customer relationships, which are based on relatively short
term,  nonexclusive agreements, and the loss of one or more customers could harm
our business.

Our  ability  to  increase  revenues  depends  upon  successful marketing of our
services  through  new and existing customers. Our agreements with our customers
generally  can  be terminated for any or for no reason after the first year. The
agreements  with  our  customers are non-exclusive and do not restrict them from
introducing   competing   services.   Also,  some  of  our  relationships  allow
termination  earlier  than  one  year.  Loss of one or a few key customers could
damage  our  reputation and hurt our ability to develop new relationships. If we
fail  to develop new relationships or if our customers terminate or do not renew
their  contracts  with  us,  our business will suffer, as we will lose potential
revenue  from  the lost customers and from their underlying base of email users.
One  customer,  Excite, accounted for 54% of our revenues in 1998. Revenues from
MyPoints,  a  permission  based  email  service  company, represented 11% of our
revenues  in 1999. Customers may provide us with a large number of users but pay
a relatively small minimum annual service fee.


We  have  many  established  competitors  who  are  offering the same or similar
services  and  we  will  not be able to compete effectively against them if they
provide superior services at better prices.

The  market  for Web-based email services is intensely competitive and we expect
it  to  be  increasingly  competitive.  Increased  competition  could  result in
pricing  pressures,  reduced  operating margins and loss of market share, any of
which could cause our business to suffer.

In  the  market  for  email  and  messaging  services,  we compete directly with
Web-based  email  service  providers,  including  Critical  Path,  Mail.com  and
USA.NET,  as  well  as  with  companies that develop and maintain in-house email
solutions.  In  addition,  companies  such as Software.com currently offer email
software  products to ISPs, web hosting companies, web portals and corporations.
Furthermore,   numerous   small-scale   email  providers  offer  low-cost  basic
services,  but  without scalable systems or value-added functionality. These and
other  companies  could  potentially  leverage  their  existing capabilities and
relationships  to  enter  the email service industry by redesigning their system
architecture,  pricing  and  marketing  strategies to sell through to the entire
market.   The  ability  of  these  competitors  to  offer  a  broader  suite  of
complementary  services  may  give them a considerable advantage over us. In the
future,  ISPs,  web  hosting  companies and outsourced application companies may
broaden their service offerings to include outsourced email.

Our  market's  level of competition is likely to increase as current competitors
increase  the  sophistication  of  their offerings and as new participants enter
the  market. In the future, as we expand our service offerings, we may encounter
increased  competition  in  the development and delivery of these services. Many
of  our  current  and  potential  competitors  have  longer operating histories,
larger   customer  bases,  greater  brand  recognition  and  greater  financial,
marketing  and  other  resources  than  we  do  and  may enter into strategic or
commercial  relationships  on  more  favorable  terms.  Further,  certain of our
competitors  may  offer services at or below cost. In addition, new technologies
and  the  expansion  of existing technologies may increase competitive pressures
on  us.  We  may  not be able to compete successfully against current and future
competitors  and  increased  competition may result in reduced operating margins
and loss of market share.


We  are  experiencing rapid internal growth which has and likely will strain our
management resources.

We  recently  began to expand our operations rapidly and intend to continue this
expansion.  The  number  of our employees increased from 45 on December 31, 1998
to  214  on  December  31,  1999.  This expansion has placed, and is expected to
continue  to  place,  a  significant  strain  on our managerial, operational and
financial  resources. To manage any further growth, we will also need to improve
or  replace  our  existing  operational, customer service and financial systems,
procedures and controls.




                                       10
<PAGE>


The  loss  of our key employees would adversely affect our ability to manage our
business,  therefore  causing  our  operating results to suffer and the value of
your investment to decline.

Our success  depends on the skills,  experience  and  performance  of our senior
management and other key personnel, many of whom have worked together for only a
short period of time.  The loss of the services of any of our senior  management
or other key personnel,  including Gideon Mantel,  our Chief Executive  Officer,
Isabel Maxwell, the President of our United States subsidiary, and Amir Lev, our
President and Chief Technical Officer, could materially and adversely affect our
business. We do not have employment agreements with any of our senior management
or other key  personnel.  We cannot prevent them from leaving at any time. We do
not maintain key-person life insurance policies on any of our employees.


Because  our  business is based on communications and messaging services, we are
susceptible  to  system interruptions and capacity constraints, which could harm
our business and reputation.

Our  ability  to successfully receive and send our end users' email messages and
provide  acceptable  levels  of  service  largely  depends  on the efficient and
uninterrupted  operation of our computer and communications hardware and network
systems  and those of our outsourced hosting service. In addition, the growth in
the  use  of  the  Internet  has  caused  frequent  interruptions  and delays in
accessing  the  Internet  and  transmitting  data  over  the Internet. We do not
possess  insurance  to cover losses caused by unplanned system interruptions and
software  defects.  In  the  past, we have experienced some interruptions in our
email  service.  We believe that these interruptions will continue to occur from
time  to  time. These interruptions may be due to hardware failures, unsolicited
bulk  email  (also  known  as  "spam"),  operating  system  failures, inadequate
Internet  infrastructure  capacity,  and  other  mechanical and human causes. We
expect  to  experience occasional, temporary capacity constraints due to sharply
increased  traffic,  which  may  cause  unanticipated system disruptions, slower
response  times, impaired quality and degradation in levels of customer service.
If  we  experience frequent or long system interruptions that reduce our ability
to  provide  email  services,  we may have fewer users of our email services. In
addition,  we  have  entered  into service agreements with some of our customers
that  require minimum performance standards. If we fail to meet these standards,
our customers could terminate their relationships with us.

We  must  continue  to  expand  and adapt our network infrastructure to changing
requirements  and  increasing numbers of end users. The expansion and adaptation
of  our  network  infrastructure will require substantial financial, operational
and  managerial  resources. In addition, we depend on improvements being made to
the  entire  Internet  infrastructure to alleviate overloading and congestion of
the  Internet.  The  ability of our network to continue to connect and manage an
expanding  number  of  customers,  end  users  and messages at high transmission
speeds  is  unproven  and  uncertain. We face risks related to our network's and
the  Internet's  ability  to  operate  with  higher use levels while maintaining
expected performance levels.


We  are  a relatively small competitor in the electronic messaging industry and,
as  a  result,  we  may  not  have  the  resources  to  adapt  to  the  changing
technological   requirements  and  the  shifting  consumer  preferences  of  our
industry.

The  Internet messaging industry is characterized by rapid technological change,
changes  in  end  user  requirements  and  preferences, and the emergence of new
industry  standards  and  practices  that could render our existing services and
proprietary  technology  obsolete.  Our success depends, in part, on our ability
to  continually enhance our existing email and messaging services and to develop
new   services,   functions   and   technology  that  address  the  increasingly
sophisticated  and varied needs of our prospective customers. The development of
proprietary  technology  and  necessary service enhancements entails significant
technical   and   business  risks  and  requires  substantial  expenditures  and
lead-time.  We  may  not  be  able  to  keep  pace with the latest technological
developments.  We  may  not be able to use new technologies effectively or adapt
our  services  to  customer  or  end  user  requirements  or  emerging  industry
standards.  Also,  in  addition to addressing changing technologies and end user
needs, we must also do so more quickly than our competition.



                                       11
<PAGE>

Our  services  may  be adversely affected by software defects, which could cause
our customers or end users to stop using our services.

Our  service  offerings  depend  on  complex  software.  Complex  software often
contains  defects,  particularly  when first introduced or when new versions are
released.  Although  we  conduct extensive testing, we may not discover software
defects  that  affect  our  new  or current services or enhancements until after
they  are  deployed.  Although  we  have  not  experienced any material software
defects  to  date, it is possible that, despite testing by us, defects may exist
in  the  software  we  use. These defects could cause service interruptions that
could  damage  our  reputation  or  increase our service costs, cause us to lose
revenue,  delay  market  acceptance  or divert our development resources, any of
which  could  cause  our  business  to suffer. Some of our services are based on
software  provided by third parties. We have no control over the quality of such
software.

We  rely  on  the integrity of our network security, which may be susceptible to
breaches that could harm our reputation and business.

A  fundamental  requirement for online communications is the secure transmission
of  confidential  information over public networks. Third parties may attempt to
breach  our  security  or  that  of our customers. Despite our implementation of
third  party  encryption  technology  and network security measures, our servers
are  vulnerable  to  computer  viruses,  physical  or  electronic  break-ins and
similar  disruptions, which could lead to interruptions, delays or loss of data.
We  may  be  liable  to  our customers and their end users for any breach in our
security,  including  claims for impersonation or other similar fraud claims, as
well  as  claims  for  other  misuses  of  personal information, for example for
unauthorized  marketing  purposes. Also, such a breach could harm our reputation
and  consequently  our  business.  We may also be required to expend significant
capital  and  other  resources  to  license encryption technology and additional
technologies  to  protect  against  security  breaches  or to alleviate problems
caused  by  any  breach.  Our  failure to prevent security breaches could have a
material adverse effect on our business and operating results.

In  addition,  the  Federal  Trade  Commission  and  several  states  have  been
investigating   some   Internet   companies  regarding  their  use  of  personal
information.  We  could  incur  additional expenses if new regulations regarding
the  use  of  personal  information are introduced, if our privacy practices are
investigated  or  if  our  privacy  policies  are viewed unfavorably by users or
potential users.

If  we  fail  to  adequately  protect our intellectual property rights or face a
claim  of intellectual property infringement by a third party, we could lose our
intellectual property rights or be liable for significant damages.

We  regard  our copyrights, service marks, trademarks, trade secrets and similar
intellectual  property  as  critical  to  our success, and rely on trademark and
copyright   law,   trade   secret  protection  and  confidentiality  or  license
agreements  with  our employees and customers to protect our proprietary rights.
Third  parties  may  infringe  or  misappropriate our copyrights, trademarks and
similar  proprietary rights. Although we have not filed any patent applications,
we  may  seek  to patent certain software or other technology in the future. Any
such  future  patent applications may not be issued with the scope of the claims
we  seek,  or  at  all. We cannot be certain that our software does not infringe
issued  patents  that  may relate to our software products. In addition, because
patent  applications  in  the United States are not publicly disclosed until the
patent  is issued, applications may have been filed which relate to our software
products.

Despite  our  precautions,  unauthorized third parties may copy certain portions
of  our  technology  or  reverse  engineer or obtain and use information that we
regard   as   proprietary.   End  user  license  provisions  protecting  against
unauthorized  use,  copying, transfer and disclosure of the licensed program may
be  unenforceable under the laws of some jurisdictions and foreign countries. In
addition,  the  laws of some foreign countries do not protect proprietary rights
to  the same extent as do the laws of the United States. Our means of protecting
our  proprietary  rights  in the United States or abroad may not be adequate and
competitors may independently develop similar technology.

Our  ZapZone  Network service allows webmasters to select the email service name
of  their choice (although we reserve the right to eliminate their account or to
change their email service name).




                                       12
<PAGE>


There  is,  therefore, the possibility that they will select email service names
that  may  infringe  the  rights  of others. We have received several complaints
about  ZapZone Network service webmasters' registered email service names and we
have  referred  these  complainants  directly  to  the  ZapZone  Network service
subscribers  who  are  allegedly engaging in the infringing activities. However,
these  complainants  may seek to enforce their rights against us in addition to,
or instead of, the infringing webmasters.


We  may  have liability for email content and we may not have adequate liability
insurance.

As  a  provider  of  email services, we face potential liability for defamation,
negligence,  copyright,  patent or trademark infringement and other claims based
on  the nature and content of the materials transmitted via email. We do not and
cannot  screen  all  of  the  content  generated  by  end users, and we could be
exposed  to  liability  with  respect to this content. Some foreign governments,
such  as  the  government of Germany, have enforced laws and regulations related
to  content  distributed  over  the  Internet  that  are  more strict than those
currently  in  place  in  the  United  States.  Although  we  carry  general and
professional  liability  insurance  coverage,  our  insurance may not adequately
protect   us  from  such  claims.  Any  imposition  of  liability,  particularly
liability  that  is  not  covered  by  insurance,  or  is in excess of insurance
coverage,  could  damage  our  reputation  and  hurt  our business and operating
results, or could result in criminal penalties.


Governmental  regulation  and legal uncertainties could impair the growth of the
Internet  and  decrease  demand  for  our services or increase our cost of doing
business.

There  are  currently  few  laws  and  regulations  directly  applicable  to the
Internet  and  commercial  email  services.  However, a number of laws have been
proposed  involving  the  Internet,  including  laws  addressing  user  privacy,
pricing,  content,  copyright,  antitrust,  distribution and characteristics and
quality  of  products  and  services. Further, the growth and development of the
market  for  email  may prompt calls for more stringent consumer protection laws
that  may  impose  additional  burdens  on companies conducting business online.
Moreover,  the  applicability  to  the  Internet  of  existing  laws  in various
jurisdictions  governing  issues  such  as  property  ownership, sales and other
taxes,  libel  and  personal privacy is uncertain and may take years to resolve.
The  adoption  of additional laws or regulations, or the application of existing
laws  or  regulations  to the Internet, may impair the growth of the Internet or
commercial  online services. This could decrease the demand for our services and
increase  our  cost  of  doing  business,  or  otherwise  harm  our business and
operating results.

Due  to  the  global  nature  of  the  Web,  it  is  possible that, although our
transmissions  currently  originate  in  California,  the  governments  of other
states  or foreign countries might attempt to regulate our transmissions or levy
sales  or  other  taxes  relating to our activities. The European Union recently
adopted  a  directive  addressing  data privacy that may result in limits on the
collection and use of user information.

On October 20,  1999,  The  Federal  Trade  Commission  issued the final rule to
implement the Children's  Online Privacy  Protection Act of 1998 ("COPPA").  The
main goal of the COPPA and the rule is to protect the privacy of children  using
the  Internet.  As of April 21,  2000,  certain  commercial  websites and online
services directed to, or that knowingly collect  information from, children must
obtain  parental  consent  before  collecting,  using,  or  disclosing  personal
information  from  children  under 13. The COPPA  regulations  could  reduce our
ability to engage in direct marketing. The cost to the Company of complying with
the new  requirements is not known and such cost may have a material effect upon
operating results or financial condition.


We  may  need  additional  capital  and  raising  additional  capital may dilute
existing shareholders.

We  believe  that  our existing capital resources will enable us to maintain our
current  and planned operations for at least the next 12 months. However, we may
be  required  to  raise additional funds due to unforeseen circumstances. If our
capital  requirements  vary  materially  from  those  currently  planned, we may
require  additional financing sooner than anticipated. Such financing may not be
available in




                                       13
<PAGE>


sufficient  amounts  or  on  terms  acceptable  to  us and may cause dilution to
existing  shareholders.  Also,  we may raise additional capital in the future by
issuing  securities  that  have  superior rights and preferences to our ordinary
shares.


Purchasers   of  our  ordinary  shares  may  suffer  immediate  and  substantial
dilution.

The offering price of the shares may be substantially higher than the book value
per share of our  ordinary  shares.  Some  elements  of our market  value do not
originate from measurable transactions.  Therefore, there is not a corresponding
rise in  "book," or  historical  cost  accounting,  value for our rise in market
value, if any. Examples of these elements include the perceived growth prospects
of our core commercial market, perceived growth prospects of our Web-based email
services and our perceived  competitive position within the market for Web-based
email  services.  Purchasers  of the  ordinary  shares  in  this  offering  will
experience immediate dilution of approximately $51.44, measured by the excess of
an  assumed  public  offering  price of $62.00  per share  over the pro forma as
adjusted net tangible book value per share of ordinary  shares.  Purchasers  may
also  experience  additional  dilution  upon the exercise of  outstanding  stock
options.


If  we  or  any  of our vendors do not adequately address "Year 2000" issues, we
may  incur  significant unanticipated expenses to remedy any resulting problems,
and our business and reputation could suffer.

The  "Year  2000" issue is the result of computer programs and embedded hardware
systems  having  been  developed using two digits rather than four to define the
applicable  year.  These  computer programs or hardware that have date-sensitive
software  or  embedded  chips  may  recognize a date using "00" as the year 1900
rather   than   the   year  2000.  This  could  result  in  system  failures  or
miscalculations,  causing  disruptions  of  operations  including,  among  other
things,  a  temporary inability to process transactions, send invoices or engage
in  normal business activities. We have tested our internally developed software
and  have  made  it  Year  2000  compliant. Many of our customers maintain their
Internet  operations  on  commercially  available  operating systems that may be
impacted  by  Year  2000  complications.  In  addition,  we  rely on third-party
vendors  for  certain  software and hardware included within our services, which
may  not  be  Year  2000  compliant. Failure of our internal computer systems or
third-party  equipment  or  software, or of systems maintained by our suppliers,
to  operate  properly with regard to the year 2000 and thereafter, could require
us  to incur significant unanticipated expenses to remedy any problems and could
cause  system interruptions and loss of data. Any of these events could harm our
reputation, business and operating results.


Our  directors,  executive  officers  and principal shareholders will be able to
exert  significant  influence  over  matters  requiring shareholder approval and
could delay or prevent a change of control.

Our directors and  affiliates of our directors,  our executive  officers and our
shareholders  who  currently  own  over  five  percent  of our  ordinary  shares
beneficially  own  approximately   30%  of  our  outstanding   ordinary  shares.
Immediately  following  the  offering,  they will own  approximately  20% of our
outstanding  ordinary  shares  (whether or not the  underwriters'  overallotment
option is exercised in full). If they vote together,  these shareholders will be
able to exercise  significant  influence over all matters requiring  shareholder
approval,  including  the  election of  directors  and  approval of  significant
corporate  transactions.  This  concentration  of ownership  could also delay or
prevent a change in control of Commtouch.

Go2Net   and   Vulcan   Ventures  beneficially  own  approximately  14%  of  our
outstanding  ordinary  shares  (assuming exercise of the Go2Net warrant on a net
issuance   basis).   Immediately   following   the   offering,   they  will  own
approximately  12%  of  our  outstanding  ordinary  shares  (whether  or not the
underwriters'  overallotment  option is exercised in full). Vulcan Ventures is a
significant  shareholder of Go2Net. Accordingly, Go2Net and Vulcan Ventures will
be  able  to  significantly  influence  and  possibly exercise control over most
matters  requiring  approval  by  our  shareholders,  including  the election of
directors   and   approval   of   significant   corporate   transactions.   This
concentration  of ownership may also have the effect of delaying or preventing a
change  in  control.  Go2Net and Vulcan also have the right to name one director
to  our  Board  as  long  as  they  continue  to  hold  at least 620,022 shares,
including



                                       14
<PAGE>

the  shares issuable upon exercise of the Go2Net warrant. They have named Thomas
Camp  to  the Board under this provision. In addition, conflicts of interest may
arise as a consequence of Go2Net's control relationship with us, including:


    o  conflicts   between   Go2Net  and   Vulcan   Ventures,   as   significant
       shareholders, and our other shareholders, whose interests may differ with
       respect to, among other things,  our strategic  direction or  significant
       corporate transactions;

    o  conflicts related to corporate opportunities that could be pursued by us,
       on the one hand, or by Go2Net, on the other hand; or

    o  conflicts  related to existing or new contractual  relationships  between
       us, on the one hand,  and Go2Net and its other  affiliates,  on the other
       hand.


Our  business  and  operating  results  could  suffer  if we do not successfully
address the risks inherent in the expansion of our international operations.

At  present,  we have sales offices in the United States, Israel and England. We
intend   to   continue  to  expand  into  international  markets  and  to  spend
significant  financial  and  managerial  resources  to  do  so.  We have limited
experience   in  international  operations  and  may  not  be  able  to  compete
effectively  in  international  markets. The Company will face risks inherent in
conducting business internationally, such as:

    o  difficulties and costs of staffing and managing international operations;

    o  fluctuations in currency exchange rates;

    o  imposition of currency exchange controls;

    o  differing technology standards;

    o  export  restrictions,  including  export controls  relating to encryption
       technologies;

    o  difficulties  in collecting  accounts  receivable  and longer  collection
       periods;

    o  unexpected changes in regulatory requirements;

    o  political and economic instability;

    o  potentially adverse tax consequences; and

    o  potentially reduced protection for intellectual property rights.

Any  of  these  factors  could  adversely  affect  the  Company's  international
operations  and,  consequently,  business  and  operating results. Specifically,
failure  to  successfully  manage  international  growth  could result in higher
operating  costs  than  anticipated  or  could  delay or preclude altogether the
Company's ability to generate revenues in key international markets.


Substantial sales of our ordinary shares could adversely affect our stock price.

The  sale,  or  availability for sale, of substantial quantities of our ordinary
shares  may  have  the  effect  of  depressing  its  market price by potentially
introducing  a  large  number  of sellers into the market. A large number of our
ordinary  shares  are  currently  eligible for resale. In addition a significant
number  of  shares  will  be eligible for resale at various dates in the future.
See "Shares Eligible for Future Sale."


Risks Relating to Operations in Israel

We  have  important  facilities  and  resources  located  in  Israel,  which has
historically  experienced severe economic instability and military and political
unrest.

We  are  incorporated  under  the  laws  of  the  State of Israel. Our principal
research   and   development   facilities   are   located  in  Israel.  Although
substantially  all  of  our  sales currently are being made to customers outside
Israel,  we  are  nonetheless directly influenced by the political, economic and
military


                                       15
<PAGE>


conditions  affecting  Israel.  Any major  hostilities  involving Israel, or the
interruption  or  curtailment  of trade between  Israel and its present  trading
partners, could significantly harm our business, operating results and financial
condition.


Israel's economy has been subject to numerous destabilizing factors, including a
period of rampant  inflation in the early to  mid-1980's,  low foreign  exchange
reserves,  fluctuations in world commodity prices,  military conflicts and civil
unrest.  In addition,  Israel and companies doing business with Israel have been
the  subject  of an  economic  boycott  by the  Arab  countries  since  Israel's
establishment. These restrictive laws and policies may have an adverse impact on
our operating results, financial condition or expansion of our business.

Since  the  establishment  of  the State of Israel in 1948, a state of hostility
has  existed,  varying  in  degree  and  intensity,  between Israel and the Arab
countries.  Although  Israel  has  entered  into various agreements with certain
Arab  countries  and  the  Palestinian  Authority, and various declarations have
been  signed  in  connection  with  efforts  to resolve some of the economic and
political  problems  in  the  Middle  East, we cannot predict whether or in what
manner these problems will be resolved.


Our  results  of  operations may be negatively affected by the obligation of key
personnel to perform military service.

In  addition,  certain  of our officers and employees are currently obligated to
perform  annual  reserve  duty  in  the Israel Defense Forces and are subject to
being  called  for  active  military  duty  at  any time. Although Commtouch has
operated  effectively  under  these  requirements since its inception, we cannot
predict  the  effect  of  these  obligations  on  Commtouch  in  the future. Our
operations  could be disrupted by the absence for a significant period of one or
more of our officers or key employees due to military service.


Because  a  substantial  portion  of our revenues are generated in U.S. dollars,
while  a  significant  portion  of  our  expenses  are  incurred  in New Israeli
Shekels,  our  results  of operations may be adversely affected by inflation and
currency fluctuations.

We  generate  a  substantial portion of our revenues in U.S. dollars but incur a
significant  portion of our expenses, principally salaries and related personnel
expenses,  in  New Israeli Shekels, commonly referred to as NIS. As a result, we
are  exposed  to  the  risk that the rate of inflation in Israel will exceed the
rate  of  devaluation of the NIS in relation to the dollar or that the timing of
any  devaluation  may  lag behind inflation in Israel. While in recent years the
rate  of  devaluation  of  the  NIS  against the dollar has exceeded the rate of
inflation,  which  is  a  reversal from prior years, we cannot be sure that this
reversal  will  continue.  If  the  dollar  cost  of  our  operations  in Israel
increases,   our   dollar-measured  results  of  operations  will  be  adversely
affected.  Our  operations  also could be adversely affected if we are unable to
guard  against  currency  fluctuations  in the future. Accordingly, we may enter
into  currency  hedging  transactions to decrease the risk of financial exposure
from  fluctuations  in  the  exchange  rate of the dollar against the NIS. These
measures,  however,  may not adequately protect us from material adverse effects
due to the impact of inflation in Israel.


Israeli  courts  might  not  enforce judgments rendered outside of Israel and it
might  therefore  be  difficult  for an investor to recover any judgment against
any of our officers or directors
resident in Israel.

We  are  organized  under  the  laws  of  Israel,  and we  maintain  significant
operations  in  Israel.  Certain of our  officers  and  directors  named in this
prospectus reside outside of the United States. Therefore, you might not be able
to enforce any judgment  obtained in the U.S. against us or any of such persons.
You might not be able to bring civil actions under U.S.  securities  laws if you
file a lawsuit in Israel.  However,  we have been advised by our Israeli counsel
that,  subject  to  certain  limitations,  Israeli  courts  may  enforce a final
judgment of a U.S. court for liquidated amounts in civil matters after a hearing
in Israel. We have appointed  Commtouch Software Inc., our U.S.  subsidiary,  as
our agent to receive  service of process in any action against us arising out of
this offering.  We have not given our consent for our agent to accept service of
process in connection with any other claim and it may therefore be



                                       16
<PAGE>


difficult for an investor to effect service of process  against us or any of our
non-U.S.  officers,  directors and experts  relating to any other  claims.  If a
foreign  judgment is enforced by an Israeli court, it will be payable in Israeli
currency.


Provisions  of  Israeli  law may delay, prevent or make difficult an acquisition
of  Commtouch, which could prevent a change of control and therefore depress the
price of our stock.

Israeli  corporate  law regulates mergers, votes required to approve mergers and
acquisitions  of  shares  through  tender offers, requires special approvals for
transactions  involving  significant  shareholders  and  regulates other matters
that  may  be  relevant  to these types of transactions. Furthermore, Israel tax
considerations  may  make potential transactions unappealing to us or to some of
our shareholders.


The  new  Israeli  Companies  Law imposes substantial duties on shareholders and
may cause uncertainties regarding corporate governance.


The new Israeli  Companies Law, which became  effective on February 1, 2000, has
brought about significant changes to Israeli corporate law. The new law includes
provisions   imposing    substantial   duties   on   certain   controlling   and
non-controlling    shareholders.    (See    "Management--Approval   of   Certain
Transactions").  In addition,  there may be  uncertainties  regarding  corporate
governance in some areas.  These  uncertainties  will persist until this new law
has been adequately interpreted,  and these uncertainties could inhibit takeover
attempts or other transactions and inhibit other corporate decisions.



                                       17
<PAGE>

                                USE OF PROCEEDS


Offering by the Company and the Selling Shareholders

The net proceeds we will receive from the sale of the 1,669,000  ordinary shares
offered by us, at an assumed public  offering  price of $62.00 per share,  after
deducting the underwriting  discounts and commissions and the estimated offering
expenses payable by us (which are estimated to be $6.8 million,  or $8.5 million
if the underwriters'  over-allotment  option is exercised in full) are estimated
to be $96.7 million ($122.9 million if the underwriters'  over-allotment  option
is exercised in full).

We intend to use the proceeds of this offering for the following:

    o  expansion of our sales and marketing activities;

    o  capital expenditures,  including purchase of equipment, primarily for our
       hosting facilities;

    o  expansion of research and development activities;

    o  expansion of our international operations; and

    o  working capital and other general corporate purposes.

The  amounts  and timing of these expenditures will vary significantly depending
on  a  number  of  factors,  including,  but  not limited to, the amount of cash
generated  by  our operations and the market response to the introduction of any
new service offerings.

In  addition,  we  may  use  a portion of the net proceeds of this offering from
time  to  time  to  acquire  or  invest  in  businesses,  products,  services or
technologies   complementary   to   our   current   business,  through  mergers,
acquisitions,  joint  ventures  or  otherwise.  Accordingly, our management will
retain  broad  discretion  as  to  the use and allocation of the net proceeds of
this  offering.  Pending the above uses, we intend to invest the net proceeds of
this offering in short-term, interest-bearing investment grade securities.


We  will  not  receive  any  proceeds from the sale of the shares by the selling
shareholders in this offering.



               MARKET PRICE AND PRICE RANGE FOR ORDINARY SHARES


The  Company's  ordinary  shares  have been quoted on the Nasdaq National Market
since  July  13,  1999,  under  the  symbol  CTCH. There is no non-United States
trading  market  for  the  shares. As of December 31, 1999, there were 82 record
holders  of ordinary shares, of which approximately 50 represented United States
record  holders  holding approximately 45% of the outstanding ordinary shares of
the  Company.  The Company believes that some beneficial holders of its ordinary
shares  hold  in  nominee  or street name, and that there may be more than 3,000
beneficial  holders.  On  March  7,  2000  the  last  reported sales price of an
ordinary share on the Nasdaq National Market was $62.00 per share.



<TABLE>
<CAPTION>
                                                                    Ordinary Share Price
                                                                   -----------------------
                                                                     High         Low
                                                                   ----------   ----------
<S>                                                                 <C>          <C>
Fiscal Year Ended December 31, 1999
   Quarter ended September 30, 1999 (from July 13, 1999) .......    $ 25.88     $  9.75
   Quarter ended December 31, 1999 .............................    $ 59.50     $ 13.88
Fiscal Year Ending December 31, 2000
   Period from January 1, 2000 through March 24, 2000 ..........    $ 66.50     $ 35.56
</TABLE>





                                       18
<PAGE>


                                DIVIDEND POLICY

We  have  never  paid cash dividends to our shareholders and we currently do not
intend  to  pay  dividends  for  the  foreseeable  future. We intend to reinvest
earnings  in the development and expansion of our business. We may only pay cash
dividends  in  any  fiscal year out of profits, as determined under Israeli law,
so  long  as  the Company reasonably believes that such payment will not prevent
it  from  paying  all  of  its  current and future debts. The declaration of any
final  cash dividend requires shareholder approval. Shareholders may reduce, but
not  increase,  the amount of dividends from the amount proposed by the Board of
Directors.

Because  of  Commtouch's  investment  programs'  Approved Enterprise status, the
payment  of  dividends  by  Commtouch  may  subject Commtouch to certain Israeli
taxes  to  which  it  would  not  otherwise  be  subject.  The tax exempt income
attributable  to  the  Approved  Enterprise  can  be distributed to shareholders
without  subjecting  Commtouch  to  taxes  only upon the complete liquidation of
Commtouch.  If Commtouch decides to distribute cash dividends out of income that
has  been  exempt  from tax, the income out of which the dividend is distributed
will  be  subject  to  Israeli corporate tax (currently 25%). We have decided to
reinvest  the  amount  of tax exempt income derived from our Approved Enterprise
and  not  to  distribute  such  income  as  dividends. (For a description of our
Approved   Enterprise  status,  please  see  "Israeli  Taxation  and  Investment
Programs.")




                                       19
<PAGE>

                                CAPITALIZATION

The  following  table  sets forth the capitalization of Commtouch as of December
31, 1999:

The following data is presented:



    o  on an actual basis; and

    o  on a pro  forma  as  adjusted  basis  to give  effect  to (1) the sale of
       1,669,000 ordinary shares in this offering,  at an assumed offering price
       of $62.00 per share and (2) the issuance of 901,471  ordinary shares upon
       the assumed net  exercise at an assumed  share price of $62.00 per share,
       of an in-the-money  warrant held by Go2Net to purchase 1,136,000 ordinary
       shares at an exercise price of $12.80 per share.


<TABLE>
<CAPTION>
                                                                                December 31, 1999
                                                                            -------------------------
                                                                                           Pro forma
                                                                             Actual       As Adjusted
                                                                            ---------     -----------
                                                                                  (in thousands)
<S>                                                                        <C>            <C>
Long-term liabilities ..................................................    $     497      $     497
Shareholders' equity:
 Ordinary shares, NIS 0.05 par value; 40,000,000 shares
   authorized, 15,199,344 shares issued and outstanding;
   17,769,815 shares issued and outstanding pro forma as adjusted ......          213            245
 Additional paid-in capital ............................................      133,403        230,040
 Stock-based employee deferred compensation ............................       (5,779)        (5,779)
 Notes receivable from shareholders ....................................       (1,060)          (813)
 Accumulated other comprehensive income ................................           63             63
 Accumulated deficit ...................................................      (31,528)       (31,528)
                                                                            ---------      ---------
      Total shareholders' equity .......................................       95,312        192,228
                                                                            ---------      ---------
      Total capitalization .............................................    $  95,809        192,725
                                                                            =========      =========
</TABLE>


The  number  of  ordinary  shares to be outstanding after this offering does not
include the following:

    o  1,383,110  ordinary  shares  issuable  upon  exercise  of  stock  options
       outstanding  under our stock option plans and stock option  agreements as
       of December 31, 1999 at a weighted  average  exercise  price of $9.62 per
       share;

    o  2,876,850  ordinary  shares  available for future grant or issuance under
       our stock option plans as of December 31, 1999;


    o  773,420  ordinary  shares  issuable upon  exercise of options  granted to
       executive  officers and directors prior to December 31 1999 at a weighted
       average price of $8.20; and


    o  4,860 ordinary  shares issuable upon exercise of a warrant at an exercise
       price of $3.61 per  share;  this  warrant  was net  exercised  into 4,461
       ordinary shares subsequent to December 31, 1999.




                                       20
<PAGE>

                                   DILUTION

<TABLE>
Our net tangible  book value as of December 31, 1999 was $90.8  million or $5.97
per ordinary share.  Net tangible book value per share is determined by dividing
the amount of our total tangible assets less total  liabilities by the number of
ordinary  shares  outstanding at that date.  Dilution in net tangible book value
per share  represents  the  difference  between  the  amount  per share  paid by
purchasers  of ordinary  shares in the offering made hereby and the net tangible
book value per ordinary share immediately after the completion of this offering.
After  giving  effect to the sale of 1,669,000  ordinary  shares by Commtouch in
this offering (at an assumed public offering price of $62.00 per share and after
deducting the underwriting  discounts and commissions and our estimated offering
expenses),  and assuming an estimated  901,471 ordinary shares issuable upon the
net exercise of an  in-the-money  warrant  held by Go2Net to purchase  1,136,000
ordinary  shares at an exercise  price of $12.80,  the pro forma as adjusted net
tangible  book value of  Commtouch  at December  31, 1999 would have been $187.7
million, or $10.56 per share. This represents an immediate increase in pro forma
as  adjusted  net  tangible  book  value of  $4.59  per  share  to the  existing
shareholders  and an  immediate  dilution  of $51.44 per share to new  investors
purchasing  ordinary shares in this offering.  The following  table  illustrates
this per-share dilution:

<S>                                                                                 <C>           <C>
Assumed offering price per share  .................................................                $  62.00
Net tangible book value per share as of December 31, 1999  ........................  $   5.97
Increase in pro forma as adjusted net tangible book value per share attributable
  to this offering  ...............................................................      4.92
Decrease in pro forma as adjusted net tangible book value per share attributable to
 the exercise of the in-the-money warrant held by Go2Net ..........................     (0.33)
                                                                                     --------
Pro forma as adjusted net net tangible book value per share after the offering ....                   10.56
                                                                                                   ---------
Dilution per share to new investors   .............................................                $  51.44
                                                                                                   =========
</TABLE>


The above table assumes no exercise of the underwriters'  over-allotment  option
and no exercise of options or warrants  after  December 31, 1999. As of December
31,  1999,  there were  outstanding  options to purchase a total  1,383,110  and
773,420 ordinary shares under our stock option plans and option  agreements with
our  employees  and   consultants,   and  executive   officers  and   directors,
respectively, at a weighted average exercise price of $9.62 and $8.20 per share,
respectively;  4,860  ordinary  shares  issuable  upon  exercise of  outstanding
warrants at a weighted  average exercise price of $3.61 per share; and 2,876,850
ordinary shares available for future grant under our stock option grants. If all
of these options and warrants had been  exercised on December 31, 1999,  our pro
forma as adjusted  net  tangible  book value on that date would have been $207.4
million,  or $10.41 per share, the increase in net tangible book value per share
attributable  to the existing  investors would have been $4.44 per share and the
dilution in net tangible book value to new investors  would have been $51.59 per
share.




                                       21
<PAGE>

                  SELECTED CONSOLIDATED FINANCIAL INFORMATION
<TABLE>
The  selected  consolidated  statements  of  operations data for the years ended
December  31,  1997,  1998  and 1999 and the selected consolidated balance sheet
data  as  of  December 31, 1998 and 1999 have been derived from the Consolidated
Financial  Statements  of  Commtouch  included elsewhere in this prospectus. The
selected  consolidated statement of operations data for the years ended December
31,  1995  and  1996  and  the  selected  consolidated  balance sheet data as of
December  31,  1995,  1996  and  1997  have  been  derived from the Consolidated
Financial  Statements  of  Commtouch  not included elsewhere in this prospectus.
Our  historical results are not necessarily indicative of results to be expected
for  any  future  period. The data set forth below should be read in conjunction
with  "Management's  Discussion  and Analysis of Financial Condition and Results
of  Operations"  and the Consolidated Financial Statements and the Notes thereto
included elsewhere in this prospectus.
<CAPTION>
                                                                                Year Ended December 31,
                                                         -------------------------------------------------------------------
                                                           1995          1996         1997           1998            1999
                                                         --------     ---------     ---------      ---------       ---------
                                                                         (in thousands, except per share data)
<S>                                                      <C>          <C>           <C>            <C>             <C>

Consolidated Statement of Operations Data:
Revenues:
 Email services .....................................    $     --     $     --      $     --       $     389       $   4,251
 Software licenses, maintenance and services ........       1,733        3,134           899              --              --
                                                         --------     ---------     ---------      ---------       ---------
   Total revenues ...................................       1,733        3,134           899             389           4,251
Cost of revenues:
 Email services .....................................          --           --            --             569           3,643
 Software licenses, maintenance and services ........         327          463           165              --              --
                                                         --------     ---------     ---------      ---------       ---------
   Total cost of revenues ...........................         327          463           165             569           3,643
                                                         --------     ---------     ---------      ---------       ---------
Gross profit (loss) .................................       1,406        2,671           734            (180)            608
                                                         --------     ---------     ---------      ---------       ---------
Operating expenses
 Research and development, net ......................         463        1,478         1,108           1,149           2,942
 Sales and marketing, net ...........................         832        1,965         2,202           2,001           7,722
 General and administrative  ........................         369          465           829             604           4,328
 Amortization of prepaid marketing expenses .........          --           --            --              --           3,263
 Amortization of stock-based employee
   deferred compensation ............................          --           --            --              91           3,436
                                                         --------     ---------     ---------      ---------       ---------
   Total operating expenses .........................       1,664        3,908         4,139           3,845          21,691
Operating loss ......................................        (258)      (1,237)       (3,405)         (4,025)        (21,083)
Interest and other income (expenses), net ...........         (62)         (45)          (68)           (326)          1,232
                                                         --------     ---------     ---------      ---------       ---------
Net loss ............................................    $   (320)    $ (1,282)     $ (3,473)      $  (4,351)      $ (19,851)
                                                         ========     =========     =========      =========       =========
Basic and diluted net loss per share ................    $  (0.11)    $  (0.66)     $  (2.40)      $   (3.00)      $   (2.65)
                                                         ========     =========     =========      =========       =========
Weighted average shares -- basic and diluted ........       2,885        1,934         1,450           1,450           7,487
                                                         ========     =========     =========      =========       =========
</TABLE>



<TABLE>
<CAPTION>
                                                                      December 31,
                                              -------------------------------------------------------------
                                                1995        1996        1997          1998          1999
                                              ---------   --------   -----------   -----------   ----------
                                                                     (in thousands)
<S>                                            <C>         <C>        <C>           <C>           <C>

Consolidated Balance Sheet Data:
 Cash and cash equivalents ................    $   54      $  690     $    324      $    834      $ 65,996
 Marketable securities ....................       --          --           --            --         18,050
 Working capital (deficit) ................      (734)        539       (1,264)       (1,440)       88,053
 Total assets .............................       773       2,180        1,065         2,366       100,336
 Long-term liabilities ....................       324         371          366           530           497
 Shareholders' equity (deficit) ...........      (650)        777       (1,018)         (815)       95,312
</TABLE>






                                       22
<PAGE>


                    MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                 FINANCIAL CONDITION AND RESULTS OF OPERATIONS


The  following  discussion  should  be read in conjunction with the Consolidated
Financial   Statements   and  the  Notes  thereto  included  elsewhere  in  this
prospectus.  This  discussion  contains  forward-looking  statements  based upon
current  expectations  that  involve  risks  and  uncertainties.  Any statements
contained  herein that are not statements of historical fact may be deemed to be
forward-looking  statements.  For  example,  the words "expects," "anticipates,"
"believes,"  "intends," "plans," "seeks" and "estimates" and similar expressions
are  intended to identify forward-looking statements. Commtouch's actual results
and  the  timing of certain events may differ significantly from those projected
in  the  forward-looking  statements. Factors that might cause future results to
differ  materially  from  those  projected  in  the  forward-looking  statements
include,  but  are  not  limited  to,  those  discussed  in  "Risk  Factors" and
elsewhere in this prospectus.


Overview

We  are  a  leading global provider of outsourced integrated Web-based email and
messaging   solutions   to   businesses.  Our  solutions  are  flexible,  highly
customizable  and  enable  us to satisfy the unique email and messaging needs of
our  customers worldwide. Our customers are large and small businesses who offer
our  Web-based  email through their website to their end users and employees. As
of  December  31, 1999, we had over 250 global customers. Through our customers'
sites  we  serve approximately 8.4 million active emailboxes. We also serve over
1.0  million  active  emailboxes  to  small  businesses and websites through our
ZapZone Network.


Business History and Transition

Email  Client Software Business (1991-1997). From 1991 to 1997, we generated all
of  our  revenue  from  sales  of software licenses, maintenance and service for
stand-alone  email  client  software for both mainframes and personal computers.
In  1996, we generated approximately $3.1 million in revenues from such software
licenses.

Transition  to  Web-Based  Email Services (1997). During 1996, the popularity of
email  at  home  and at work began to increase rapidly. Microsoft began bundling
Outlook,  its  email  client  software,  in "office suite" packages. At the same
time,  Netscape  began  to  provide  its  email  client  software bundled in its
Internet  browser  software.  The entrance into the email client software market
by  both  Microsoft  and  Netscape  resulted in the rapid adoption of email as a
mass-market  communications  channel.  At the same time, use of the Web began to
expand  rapidly,  and  the market for stand-alone email client software began to
be  dominated  by  companies  which bundled such software with operating systems
and/or  browsers.  We  recognized  an opportunity to leverage our technology and
experience  in  developing  email software to pursue the market created by these
two  rapidly  growing  phenomena:  email and the Web. As a result, we redeployed
the  efforts  of our existing research and development personnel and independent
contractors  to  adapt  the technology embedded in our email client software for
use  as  a  Web-based  email  service.  We ceased all stand-alone email software
license  sales  during  1997  and,  as  a  result, revenues in 1997 decreased to
$899,000.  To  further  support  our  transition  to  providing  Web-based email
services,  in  1997  we  opened a marketing, sales and support office in Silicon
Valley in order to have better access to Web-based customers.

Web-Based  Email  Service  Business  (January 1998-Present). In January 1998, we
began  to  offer  Web-based  email services to customers. Our services allow our
customers  to  provide  free  Web-based email to their end users, thus enhancing
the  customer's online presence, increasing the frequency and duration of visits
to  the  customer's  website  and  creating  an  opportunity for the customer to
generate  advertising  and  direct e-marketing revenue through email. Meanwhile,
we  recognized  that  webmasters on small sites were seeking a method to promote
their  sites  and  offer email to their users. In November 1998, we launched our
ZapZone  Network service which enables small sites to provide email to their end
users at no cost in a matter of minutes. Throughout 1999, we transitioned our



                                       23
<PAGE>


revenue  model  from  one  based on advertising with minimum commitment fee to a
price   per  emailbox fee  structure  with a minimum  commitment  fee  and  also
introduced enhanced functionality which allowed us to increase prices.


Revenue Sources


Service  Fees.  During 1999,  most of our email  service  revenue  resulted from
contracts  that required our  customers to pay us either a share of  advertising
revenues  subject  to a minimum  annual  revenue  commitment  or a  monthly  per
emailbox  price  subject  to a  minimum  commitment  fee,  and fees  for  direct
marketing and communications services.


Prior  to  1999, some of our contracts with customers provided for email service
fees  based  solely  on  a  share of banner advertising revenue, recognized only
when  such  revenues  were  earned  by  the  customers,  with  no minimum annual
commitment.


Direct  E-marketing.  Ecommerce  vendors seek  channels  through  which they can
market goods and services. Because of our installed user base and our agreements
with our customers,  we can assist  ecommerce  companies in  distributing  their
services to our  customers' end users who have opted to receive offers by email.
We share with our customers the revenues from this direct e-marketing, which are
earned either on a per-message  basis, a referral  basis,  or as a commission on
products  sold.  In the  fourth  quarter  of 1998,  we  began  to  offer  direct
e-marketing  opportunities to ecommerce vendors on a test basis. In 1999, direct
e-marketing  revenues became a meaningful portion of revenue.  We recognized 11%
of our total revenues from MyPoints, a permission based email service company.



Strategic Transaction with Go2Net

Concurrent  with  the  sale  of  our  shares  in  the initial public offering we
entered  into  an  agreement  with Go2Net, a network of branded, technology- and
community-driven  websites  focused  on  personal  finance, commerce, and games.
Go2Net  also  develops  Web-related  software.  Pursuant to the agreement we are
offering  Go2Net's end users a private label email service, including our email,
calendaring  and  other  services.  The  services are customized to the look and
feel  of  Go2Net's  websites.  The terms of this agreement are substantially the
same  as  our  commercial  agreements  with  other customers except that we have
agreed  to  share  a materially greater portion of our advertising revenues with
Go2Net  than  we  are  sharing  under  other similar agreements. In addition, in
connection  with  the  agreement,  we  issued  to  Go2Net  a warrant to purchase
1,136,000  ordinary  shares  at a per share exercise price of $12.80, subject to
adjustment  as  set  forth  in  the  warrant.  The  warrant  is fully vested and
non-forfeitable.   The   warrant  will  expire  on  July  16,  2004,  the  fifth
anniversary  of  the  initial  public  offering.  The fair value of the warrant,
estimated  at  $5.8  million,  is  being amortized to operating expenses ratably
over  the  minimum term of the agreement, which is one year. Simultaneously with
the  sale  of  the  shares  in  the  initial public offering, we sold a total of
1,344,086  ordinary  shares to Go2Net and Vulcan Ventures Incorporated at $14.88
per  share  in  a  private  placement.  In  the  future,  we  may  have to issue
in-the-money  warrants  to  acquire our ordinary shares to customers who provide
us  with  a large base of potential end users. We may also have to provide these
customers  with more favorable commercial terms than we have previously provided
to  our  customers.  The issuance of in-the-money warrants and the grant of more
favorable  terms  to customers may further dilute our shareholders, increase our
operating loss in the future and cause our stock price to fall.


Issuance of Shares Upon Exercise of Microsoft Warrant

We  entered  into  an  Email Services Agreement with Microsoft Corporation dated
October  26,  1999. Under this agreement, Commtouch will, at Microsoft's option,
customize,  host  and maintain email services for Microsoft websites in the U.S.
and  internationally.  Microsoft  will  pay  one-time  fees  for  the set-up and
customization  of  the  email  service  for  each  website with respect to which
Microsoft  chooses  to  use  our services, as well as quarterly service fees for
the  email  service  based  on  the  number of mailboxes hosted. The term of the
agreement shall continue for 12 months after the first commercial




                                       24
<PAGE>


distribution  date  of  the  email  service and Microsoft may extend the initial
term  on  a  quarterly  or  annual  basis upon 60 days prior written notice. The
agreement  may  be  terminated  by Microsoft for convenience upon 90 days' prior
written  notice,  or  by  either party upon a material breach by the other party
upon  the  terms  specified  in the agreement. In connection with the agreement,
Commtouch  issued  to  Microsoft  a  fully  vested  warrant,  exercisable  until
December  29,  1999,  to  purchase  707,965 of Commtouch's ordinary shares at an
exercise  price  of  $28.25  per  share for an aggregate exercise price of $20.0
million.  On  December  29,  1999, Microsoft exercised the warrant and now holds
707,965  ordinary  shares.  The  fair  value  of  the warrant, estimated at $1.9
million,  is  amortized  to  operating  expenses  over  the  minimum term of the
agreement (12 months).


Results of Operations
<TABLE>
The  following  table sets forth financial data for the years ended December 31,
1997, 1998 and 1999
(in thousands):
<CAPTION>
                                                                         Year Ended December 31,
                                                                ------------------------------------------
                                                                  1997           1998           1999
                                                                -----------   ------------   -------------
<S>                                                              <C>           <C>            <C>
Revenues:
 Email services ...............................................  $     --      $    389       $   4,251
 Software licenses, maintenance and services ..................       899            --              --
                                                                 --------      --------       ---------
   Total revenues .............................................       899           389           4,251
                                                                 --------      --------       ---------
Cost of revenues:
 Email services ...............................................        --           569           3,643
 Software licenses, maintenance and services ..................       165            --              --
                                                                 --------      --------       ---------
   Total cost of revenues .....................................       165           569           3,643
                                                                 --------      --------       ---------
 Gross profit (loss) ..........................................       734          (180)            608
                                                                 --------      --------       ---------
Operating expenses:
 Research and development, net ................................     1,108         1,149           2,942
 Sales and marketing ..........................................     2,202         2,001           7,722
 General and administrative ...................................       829           604           4,328
 Amortization of prepaid marketing expenses ...................        --            --           3,263
 Amortization of stock-based employee deferred compensation            --            91           3,436
                                                                 --------      --------       ---------
   Total operating expenses ...................................     4,139         3,845          21,691
                                                                 --------      --------       ---------
Operating loss ................................................    (3,405)       (4,025)        (21,083)
Interest and other income (expenses), net .....................       (68)         (326)          1,232
                                                                 --------      --------       ---------
Net loss ......................................................  $ (3,473)     $ (4,351)      $ (19,851)
                                                                 ========      ========       =========
</TABLE>

Comparison of Years Ended December 31, 1997, 1998 and 1999

In  1997,  we  ceased  all  sales of stand-alone email client software licenses,
maintenance  and  services and focused on developing our Web-based email service
business. Accordingly, comparisons between 1997 and 1998 are not meaningful.

Revenues. Email  service  revenues  increased 993% from $389,000 in 1998 to $4.3
million  in  1999. One customer, Excite, represented 54% of the revenue in 1998.
Revenues  from  MyPoints,  a permission based email service company, represented
11%  of  total  revenues  during  1999. As of December 31, 1999, the Company had
backlog  from  contracts amounting to approximately $13.1 million, which will be
recognized as revenue over future quarters.


Cost of  Revenues. Cost of revenues increased 540% from $569,000 in 1998 to $3.6
million  in  1999,  due  to the increase in contracts with customers during 1999
and  the related service provided. Cost of revenues consisted primarily of costs
related   to   Internet  data  center  services  from  a  third-party  provider,
depreciation  of  equipment,  Internet  access,  personnel and related costs. We
expect  cost of revenues to increase on an absolute basis, primarily as a result
of  an  increase  in our email service revenues, but to decrease as a percentage
of email service revenues due to economies of scale.





                                       25
<PAGE>


Research   and   Development   Costs,  Net. Research  and  development  expenses
increased  156%  from  $1.1  million  in  1998 to $2.9 million in 1999 due to an
increase  in  personnel  and other related costs. In previous years, we received
royalty-bearing  grants  from the Israeli government, recorded as a reduction of
research  and  development  costs. We have an obligation to pay royalties to the
Israeli  government  with  a remaining future liability of $270,000. In 1998, we
transferred  several  key research and development personnel into our operations
group  to  support  and  maintain  our  newly developed Web-based email services
infrastructure.  Costs  relating  to  these  personnel  were included in cost of
revenues  in  1998.  We expect that research and development costs will increase
due  to  increased  personnel  and related costs associated with the accelerated
development of new email service offerings.


Sales  and  Marketing. Sales  and  marketing  expenses  increased 286% from $2.0
million  in 1998 to $7.7 million in 1999, due to increased personnel and related
costs,  public  relations,  other  marketing  expenses and direct sales costs to
support  the growth of our email service revenues. We expect sales and marketing
expenses  to increase significantly in the future in absolute dollar amounts due
to  increases  in  personnel costs related directly to new employees being hired
to  conduct  sales  and the related market support to further develop our brand.
Sales  and  marketing expenses were $2.2 million in 1997 and related only to the
software license sales that were discontinued in 1997.


General  and  Administrative. General and administrative expenses increased 617%
from  $604,000  in  1998 to $4.3 million in 1999, due primarily to substantially
higher  personnel  and  related  costs,  facility costs, higher fees for outside
professional  services  and  other  costs  to  support  the  growth of our email
service  revenues.  We expect general and administrative costs to increase on an
absolute  basis  due  to  increased personnel and related costs, higher facility
costs  associated with additional personnel and other costs necessary to support
and  develop  the  email  service  business. General and administrative expenses
were  $829,000  in 1997 and related only to the software license sales that were
discontinued
in 1997.

Amortization  of  Prepaid  Marketing Expenses. Amortization of prepaid marketing
expenses  related  to the Go2Net and Microsoft warrants and totaled $3.3 million
for   1999.   The  prepaid  marketing  expense  is  being  amortized  using  the
straight-line  method  over  the one-year minimum term of each of the commercial
agreements.

Amortization  of  Stock-based  Employee  Deferred  Compensation. Our stock-based
employee  deferred  compensation expenses increased 3,676% from $91,000 for 1998
to  $3.4  million  for  1999. The deferred compensation is being amortized using
the sum-of-digits method over the vesting schedule, generally four years.

Interest  and  Other  Income  (Expense),  Net. Our  interest  and  other  income
(expense),  net,  increased  from  a  net  expense of $326,000 for 1998 to a net
income  of  $1.2  million  for  1999, due primarily to increased interest income
earned from cash equivalents and marketable securities.

Income  Taxes. As  of  December  31, 1999, we had approximately $22.5 million of
Israeli  net  operating loss carryforwards and $14.2 million of U.S. federal net
operating  loss  carryforwards  available  to  offset future taxable income. The
U.S.  net  operating  loss  carryforwards  will expire in various amounts in the
years  2008  to  2020.  The  Israeli  net  operating  loss carryforwards have no
expiration date.



                                       26
<PAGE>

Quarterly Results of Operations
<TABLE>
The  following  table  sets  forth  certain  unaudited  quarterly  statements of
operations   data   for  the  eight  quarters  ended  December  31,  1999.  This
information   has   been  derived  from  the  Company's  consolidated  unaudited
Financial  Statements, which, in management's opinion, have been prepared on the
same  basis  as  the  audited Consolidated Financial Statements, and include all
adjustments,  consisting  only  of normal recurring adjustments, necessary for a
fair   presentation   of  the  information  for  the  quarters  presented.  This
information  should  be  read  in  conjunction  with  our  audited  Consolidated
Financial   Statements   and  the  Notes  thereto  included  elsewhere  in  this
prospectus.   The   operating  results  for  any  quarter  are  not  necessarily
indicative of the operating results for any future period.
<CAPTION>
                                                                          Three Months Ended
                                       ---------------------------------------------------------------------------------------------
                                        Mar. 31,   Jun. 30,   Sept. 30,   Dec. 31,    Mar. 31,   Jun. 30,   Sept. 30,    Dec. 31,
                                          1998       1998       1998        1998        1999       1999       1999         1999
                                       ---------- ---------- ----------- ----------  ---------- ---------- ----------- -------------
                                                                            (in thousands)
<S>                                    <C>        <C>        <C>         <C>         <C>        <C>        <C>         <C>

Email service revenues ...............  $   32    $    59     $    130   $   168     $   346    $   552     $  1,117     $  2,236
Cost of email service revenues .......      59         85          166       259         435        605        1,043        1,560
                                        ------    --------    --------   --------    --------   --------    --------     --------
Gross profit (loss) ..................     (27)       (26)         (36)      (91)        (89)       (53)          74          676
                                        ------    --------    --------   --------    --------   --------    --------     --------
Operating expenses:
 Research and development,
   net ...............................     266        305          308       270         340        510          857        1,235
 Sales and marketing  ................     459        506          509       527         608      1,363        2,368        3,383
 General and administrative ..........     138        137          151       178         617        683        1,345        1,683
 Amortization of prepaid
   marketing expenses ................     --         --           --        --          --         --         1,464        1,799
 Amortization of stock-based
   employee compensation .............       2          8           18        63         386      1,013        1,096          941
                                        ------    --------    --------   --------    --------   --------    --------     --------
   Total operating expenses ..........     865        956          986     1,038       1,951      3,569        7,130        9,041
                                        ------    --------    --------   --------    --------   --------    --------     --------
Operating loss .......................    (892)      (982)      (1,022)   (1,129)     (2,040)    (3,622)      (7,056)      (8,365)
Interest and other income
 (expenses), net .....................     (27)       (59)         (28)     (212)       (271)         6          577          920
                                        ------    --------    --------   --------    --------   --------    --------     --------
Net loss .............................  $ (919)   $(1,041)    $ (1,050)  $(1,341)    $(2,311)   $(3,616)    $ (6,479)    $ (7,445)
                                        ======    ========    ========   ========    ========   ========    ========     ========


</TABLE>

Fluctuations in Quarterly Results

We  have  incurred  operating  losses  since inception, and we cannot be certain
that  we  will  achieve  profitability  on  a  quarterly  or annual basis in the
future.  Our results of operations have fluctuated and are likely to continue to
fluctuate  significantly  from  quarter  to  quarter as a result of a variety of
factors,  many  of  which are outside of our control. A relatively large expense
in  a  quarter could have a negative effect on our financial performance in that
quarter.  Additionally,  as  a  strategic  response  to  a  changing competitive
environment,  we  may  elect from time to time to make certain pricing, service,
marketing  or  acquisition  decisions  that  could have a negative effect on our
quarterly  financial  performance.  Other  factors  that  may  cause  our future
operating results to fluctuate include, but are not limited to:

    o  continued growth of the Internet and of email usage;

    o  demand for Web-based email services;

    o  our  ability  to attract  and  retain  customers  and  maintain  customer
       satisfaction;

    o  our  ability  to  upgrade,   develop   and   maintain   our  systems  and
       infrastructure;

    o  the  amount  and  timing  of  operating  costs and  capital  expenditures
       relating to expansion of our business and infrastructure;

    o  the size, timing and fulfillment of orders for our email services;

    o  the receipt or payment of irregular or nonrecurring revenues or expenses;

    o  technical difficulties or system outages;

    o  foreign exchange rate fluctuations;



                                       27
<PAGE>



    o  the  announcement  or  introduction  of new or  enhanced  services by our
       competitors;

    o  our  ability to attract  and retain  qualified  personnel  with  Internet
       industry expertise, particularly sales and marketing personnel;

    o  the pricing policies of our competitors;

    o  failure to increase our sales; and

    o  governmental   regulation   relating  to  the  Internet,   and  email  in
       particular.

In  addition  to  the  factors  set  forth  above, our operating results will be
impacted  by  the  extent  to  which  we  incur non-cash charges associated with
stock-based arrangements with employees and non-employees.


Liquidity and Capital Resources

We  have  financed our operations principally from the sale of equity securities
and   to  a  lesser  extent  from  bank  loans,  research  and  development  and
royalty-bearing  marketing  grants  from  the  Israeli  government. In the first
quarter  of  1999,  we issued Series C Convertible Preferred Shares to investors
resulting  in  net  proceeds  of $5.3 million. In the second quarter of 1999, we
issued  to  investors  Convertible  Promissory  Notes which later converted into
42,081  Series  D  Convertible  Preferred  Shares,  resulting in net proceeds of
approximately   $13.2   million.   All   of  our  convertible  preferred  shares
automatically  converted  into  ordinary  shares upon the closing of our initial
public  offering  on  July  16, 1999. On July 16, 1999, we raised $70.8 million,
net  of  underwriters  commissions,  from our initial public offering (including
the  exercise  of  the  underwriters'  overallotment  option)  and  the  private
placement  of  our  ordinary shares in connection with the strategic partnership
with  Go2Net  and  Vulcan Ventures. On December 29, 1999 we raised an additional
$20.0  million  from  the  sale of ordinary shares to Microsoft Corporation upon
the  exercise of a warrant issued in connection with an email services agreement
with  Microsoft.  As of December 31, 1999, we had $66.0 million in cash and cash
equivalents and $18.1 million in marketable securities.

Net  cash  provided by financing activities was $102.9 million in 1999. Net cash
used  in  operating  activities  was  $11.2  million  in 1999. Net cash used for
operating  activities  is  primarily comprised of a net loss for 1999, partially
offset  by  depreciation  and amortization expenses, increases in other accounts
receivable  and  prepaid  expenses.  Net  cash  used in investing activities was
$26.5  million  in  1999.  These  investing  activities  consisted  primarily of
purchases of property and equipment and purchases of marketable securities.

As of December 31, 1999, we had net working capital of $88.1 million.

We  believe  that  the  net  proceeds from this offering, together with existing
cash  and  our other financing arrangements, provide us with sufficient funds to
finance operations and continued growth through the next 12 months.


Effective Corporate Tax Rates

Our tax  rate  will  reflect  a mix of the U.S.  statutory  tax rate on our U.S.
income and the  Israeli  tax rate  discussed  below.  We expect that most of our
taxable  income will be generated in Israel.  Israeli  companies  are  generally
subject to corporate tax at the rate of 36% of taxable  income.  The majority of
our income,  however,  is derived from our company's capital  investment program
with Approved  Enterprise  status under the Law for the Encouragement of Capital
Investments in three separate plans,  and is therefore  eligible for certain tax
benefits.  Pursuant to these  benefits,  we will enjoy a tax exemption on income
derived  during  the first  two years in which  such  investment  plans  produce
taxable income  (provided  that we do not distribute  such income as a dividend)
and a reduced tax rate of 10% to 25% for an  additional  period of five to eight
years  depending on the level of foreign  investment in Commtouch.  All of these
tax benefits are subject to various conditions and restrictions. There can be no
assurance  that we will  obtain  approval  for  additional  Approved  Enterprise
programs,  or  that  the  provisions  of the  law  will  not  change.  Moreover,
notwithstanding  these tax  benefits,  to the  extent  we  receive  income  from
countries other than Israel, such income may be subject to withholding tax.


                                       28
<PAGE>

Since  we  have  incurred tax losses in every year through 1999, we have not yet
used the tax benefits for which we are eligible.


Impact of Inflation and Currency Fluctuations

Most  of our sales are in dollars. However, a large portion of our costs relates
to  our  operations  in Israel. A substantial portion of our operating expenses,
primarily  our research and development expenses, is denominated in NIS. For the
purposes  of  our  financial  statements,  costs  not effectively denominated in
dollars  are  translated  to dollars at prevailing exchange rates when recorded,
and  will increase if the rate of inflation in Israel exceeds the devaluation of
the  NIS  as  compared  to the dollar or if the timing of such devaluations lags
considerably  behind  inflation.  Consequently,  we  are and will be affected by
changes  in  the  prevailing NIS/dollar exchange rate. We might also be affected
by  the  dollar exchange rate to the major European and Asian currencies, due to
the fact that we derive revenues from customers in Europe and Asia.


The rate of inflation in Israel was 8.1% and 10.6% in 1995 and 1996. The rate of
devaluation  in Israel was 3.9% and 3.7% in 1995 and 1996.  This  imbalance  was
reversed when the rate of inflation was 7.0% and 8.6% in 1997 and 1998. The rate
of  devaluation in Israel was 8.8% and 17.6% in 1997 and 1998. In 1999, the rate
of inflation was 1.3% and the rate of devaluation in Israel was 0.2%.


Because  exchange  rates  between  the NIS and the dollar fluctuate continuously
(albeit  with  a historically declining trend in the value of the NIS), exchange
rate  fluctuations  and  especially  larger  periodic  devaluations will have an
impact  on  our  profitability  and period-to-period comparisons of our results.
The  effects of foreign currency remeasurements are reported in the Consolidated
Financial Statements in current operations.

The  representative  exchange  rate,  as reported by the Bank of Israel, was NIS
4.153  for  one  dollar on December 31, 1999 (NIS 4.160 on December 31, 1998 and
NIS 3.536 on December 31, 1997).


Qualitative and Quantitative Disclosure about Market Risk

We  develop  our technology in Israel and provide our services in North America,
India,  Europe  and  the  Far  East. As a result, our financial results could be
affected  by  factors such as changes in foreign currency exchange rates or weak
economic  conditions in foreign markets. As most of our sales are currently made
in  U.S.  dollars,  a  strengthening  of the dollar could make our services less
competitive  in  foreign  markets.  Our  interest  expense  on our capital lease
obligations  with  a U.S. leasing company is sensitive to changes in the general
level  of U.S. interest rates. Due to the nature and level of our debts, we have
concluded  that  there is currently no material market risk exposure. Therefore,
no quantitative tabular disclosures are required.



                                       29
<PAGE>

                                   BUSINESS


Company Overview

We  are  a  leading global provider of outsourced integrated Web-based email and
messaging   solutions   to   businesses.  Our  solutions  are  flexible,  highly
customizable  and  enable  us to satisfy the unique email and messaging needs of
our  customers worldwide. Our customers are large and small businesses who offer
our  Web-based  email  through  their website to their end users. As of December
31,  1999,  we  had  over  250 global customers. Through our customers' sites we
serve  approximately  8.4  million  active  emailboxes.  We  also serve over 1.0
million  active  emailboxes to small businesses and websites through our ZapZone
Network.


Industry Background


Growth of the Internet Worldwide and Proliferation of Email

The  Internet  has  become  a vitally important global medium for communication,
commerce,  content distribution and advertising. International Data Corporation,
or  IDC,  estimates  that  as  of  December 1999, there were over 80 million Web
users  in  the  United States and over 115 million users outside of the U.S. IDC
projects  that,  by  the  end  of  2003, these numbers will increase to over 175
million  Web  users  in  the United States and over 325 million users outside of
the  U.S.  This  growth  in  the  global  usage  of the Web provides significant
opportunities  for  emerging Web-based businesses and other companies developing
an online presence.

Email is one of the most widely used applications on the Internet and has become
a primary  platform  for  business  and  personal  communication.  According  to
Forrester Research,  over 80% of Internet users access their email while online,
making this activity the most popular use of the Internet. IDC estimates that at
the end of 1999 there were over 180 million  emailboxes in the United States and
over 130 million  outside of the United States.  IDC projects that by the end of
2003,  these numbers will increase to over 280 million  emailboxes in the United
States and over 305 million emailboxes outside the United States.


Web-based Email

Historically,  most  email  systems were provided by employers, Internet service
providers  (ISPs)  or  universities to individuals or closed groups of end users
through  software  applications  located  on  the  users' desktops or local area
networks.  Such  email systems, however, only permit access through the computer
or  network  on  which  the  email software resides or through cumbersome remote
access  systems.  The  emergence  of email systems that use Internet browsers as
the  application  for  sending  and  receiving  email has resulted in tremendous
advances  in email access, functionality and ease of use. This email standard is
commonly referred to as "Web-based email."

Web-based email offers the following benefits over traditional closed systems:

    o  anytime,  anywhere (universal) access to both business and personal email
       accounts;

    o  advanced integrated  communication services over the Web, such as unified
       messaging  (receiving  faxes and  voicemail  via  email)  and  integrated
       calendars and directories; and

    o  easy to use registration, setup and administration.

Businesses   worldwide   are  seeking  to  differentiate  themselves  online.  A
Web-based  email  service  provides an optimal solution to address this business
need  because  it  increases  brand  awareness,  builds  and reinforces a loyal,
connected member base and facilitates commerce in the following ways:

    o  Companies  embracing  Web-based email can enhance their brand identity by
       controlling the look and feel of their Web-based email interface and also
       by providing end users with  distinctive  branded email addresses such as
       [email protected].




                                       30
<PAGE>


    o  Web-based  email  significantly  enhances the  frequency  and duration of
       website visits,  commonly referred to as the website's  "stickiness." The
       personalized nature of email and the ability to bundle it with additional
       services,   such  as  calendaring,   scheduling  and  unified  messaging,
       establishes an important one-to-one relationship with email users.

    o  Email is  emerging  as an  effective  application  for  direct  marketing
       online,  as email  users  provide  important  demographic  data when they
       register  for and use email  services.  This  information  can be used to
       create highly  targeted  marketing  campaigns  with minimal  distribution
       costs.


The Opportunity to Provide Outsourced Web-based Email Services

While  many  organizations worldwide recognize the advantages of Web-based email
services,  they  often lack the infrastructure, expertise and resources to fully
realize  these  benefits  through  internal  development.  Due  to  the  growing
complexity   of   in-house   email   systems   and   the  increasing  levels  of
infrastructure   investment   and   management   resources   needed  to  provide
comprehensive  email  services,  organizations  around  the world are seeking to
outsource  email services. Businesses worldwide seek to partner with a dedicated
provider  of  Web-based  email  to  quickly implement high quality, feature-rich
email  services  without  having  to  invest  internally in email management and
systems.


The Commtouch Solution

We  are  a  leading  global  provider  of  outsourced  Web-based email and other
messaging   services   to   businesses   worldwide.   Our  flexible  and  highly
customizable  solutions  enable  us to satisfy the different email and messaging
needs of a wide range of customers.


Benefits of The Commtouch Solution

Extensive  Email  Features. Our  solution  is  easy  to use and provides a broad
range  of  industry-leading  functionality.  This  includes  the ability for end
users  to  collect email from other email accounts, to create folders, to attach
electronic  documents,  to  store  messages,  to  maintain  a contact center, to
maintain  an  integrated  calendar to create distribution lists and to establish
user  profiles  and  signatures.  Our  service  uses  IMAP4,  an  advanced email
protocol,  which  allows  email  folders  to  be  accessed  from  multiple email
environments.

The  value  of  our  solution is increased by our provision of premium services,
which  allow  end  users to send and receive faxes, voicemail and pages from the
emailbox;  access  the  Web-based  emailbox  from  an  off-line  client (such as
Microsoft  Outlook);  and  have  email  forwarded to other addresses. We believe
that,  by  providing  a  single platform which integrates multiple communication
services  and  devices,  the  Web-based emailbox we provide has the potential to
become our end users' primary online communications center.

Ability  to  Support  Hundreds of Millions of Emailboxes. Our modular technology
architecture  enables  the  rapid  set up of full-service hosting facilities and
enables  us  to  rapidly and easily expand our system as our user base grows. In
addition,  we  utilize  redundant servers and server load balancing to re-direct
traffic  to  prevent service interruptions. Our system architecture and software
platform  have  been  designed  to  provide  high quality service to hundreds of
millions  of  emailboxes  across millions of domains. We believe that our robust
and  flexible  technology  platform  enables  us  to maintain one of the highest
service performance levels in the industry.

Customization. Our  solutions  enable our customers to leverage their email as a
brand  building  tool. Customers offer our email and messaging services to their
end  users  with the customer's domain name. For example, a customer can provide
email  at  its  website  with  an  address  such  as  [email protected]. This
repeated  visibility  of  the  customer's  name  on every email message promotes
brand  awareness  and  customer  loyalty. In addition, our customers can use our
proprietary  customization  tool  to design the look and feel of their Web-based
email interface so that it reflects their own brand image.

Rapidly  Deployable  and  Cost-Effective  Solutions. Our solutions for customers
can be implemented in as few as several days.


                                       31
<PAGE>

Our  flexible  technology  and  economies  of  scale  enable us to provide email
solutions   in   a   cost-effective   manner,  allowing  businesses  to  achieve
significant  economic  advantages.We  believe  that this rapid time to market is
critical  to  our  customers,  who  desire  to realize the benefits of Web-based
email  as  quickly  as  possible.  We also provide comprehensive maintenance and
administration  of  our  email  service,  which  eliminates  the  need  for  our
customers  to  undertake the significant burden of developing and maintaining an
in-house email system.

Extensive  Language  Capabilities. We provide email services in the following 18
languages:  English,  Chinese  (Simplified  and Traditional), Japanese, Spanish,
French,   German,   Portuguese,  Dutch,  Finnish,  Danish,  Norwegian,  Swedish,
Russian,  Hebrew,  Icelandic,  Korean  and Italian. Additionally, we can support
multiple  languages  on  the  same  site  for  any  of  our  customers and offer
spell-checking  in  many  of  these  languages.  Our  multi-lingual capabilities
enable  us  to  serve the needs of businesses worldwide as well as multinational
organizations.

Increased  Website Usage. Our solutions increase the potential for our customers
to  generate  revenue by increasing the stickiness of their websites. We believe
that  traffic to our customers' websites increases as end users frequently visit
the  website  to check their email. The benefits of increased website stickiness
include  more  frequent  communication with end users, enhanced customer loyalty
and  the opportunity to generate revenues from advertising, direct marketing and
ecommerce transactions.

Online  Marketing  Capabilities. Our  customers can leverage our email solutions
along  with the demographic information of their end users to conduct one-to-one
marketing   and   targeted   advertising   campaigns.   We  collect  demographic
information  from  end  users  when they register for their emailbox. We believe
this  information  provides  a  powerful  platform  on  which to design targeted
marketing  campaigns.  To  enhance  our  customers'  marketing  capabilities, we
provide  our  MailTarget  tool which enables them to select and deliver tailored
messages to targeted segments of their user population.


Commtouch Strategy

Our  objective  is  to  be  the leading global provider of outsourced, Web-based
integrated  email  and  messaging  services.  We  plan  to  achieve this goal by
pursuing the following key strategies:


Focus Sales and Marketing Efforts on Acquiring New Business Customers

We  are  focused  on  selling  our  outsourced  email communications solution to
business  customers,  which enables them to rapidly provide our service to their
users  and  customers  without needing to build or maintain an infrastructure to
support  the  service.  We  target customers who are increasingly relying on the
Internet  to conduct their business and communications but do not want to devote
the  time  and  resources  to  develop, support, or maintain an integrated email
service.  Commtouch  enables  our  business  customers  to quickly implement our
co-branded  "Powered by Commtouch" service with minimal upfront investment while
retaining their direct user and customer relationships.

We  are  focusing  our  business-to-business  sales  efforts  on  several target
markets  which  we  believe  are  particularly  receptive to using our solution.
These  include  application service providers (ASPs), Internet service providers
(ISPs),  large corporations, and web portals. Businesses in these target markets
are  experiencing increasing pressure to offer enhanced Web-based email to their
customers.  However,  because  they  need  to  remain  focused on their own core
business   operations,   we   believe  that  they  will  outsource  their  email
capabilities.


Accelerate Transition to a Price-Per-Emailbox Fee Structure

We  generate an increasing share of our revenue through a pricing strategy based
on  a  per-emailbox  fee. We believe that this fee structure results in a higher
and  more  predictable  revenue  stream  compared  with  one based on a share of
advertising  revenue.  Contracts  with  individual  business customers typically
include  a guaranteed revenue component and fees per emailbox based on the total
number of emailboxes and level of service provided.



                                       32
<PAGE>

Leverage Business Accounts Through Focused Sales Force

We  believe  that there is a significant opportunity for us to further penetrate
and  derive  increasing  revenues  from our existing customer base. A portion of
our  sales  force  is  dedicated  to  building  our  relationships with existing
accounts,  selling them product upgrades and enhancements and keeping abreast of
their  growing  email and messaging requirements. As our customers grow, develop
new  online  strategies  and  expand  geographically,  our  sales force plans to
identify  new  ways  we  can  offer them enhanced messaging services. We believe
this sales effort will also serve to solidify our business relationships.


Extend International Leadership

We  plan  to  continue  to  aggressively  market  our solutions to businesses in
non-U.S.   markets  that  we  believe  will  experience  significant  growth  in
Web-based  email  usage.  We have developed multiple language interfaces for our
email  services  to  be  used  in  the  world's  most  widely  used  non-English
languages.  We  have also established marketing groups in Israel, to support our
expansion  in Europe and Asia, and in the United States to support our expansion
in  North  America  and Latin America. We have a sales office in London, England
and  we  plan  to  open a sales office in Japan. Additionally, we plan to pursue
joint  ventures with local partners in attractive non-U.S. markets to accelerate
our  penetration  globally.  We  believe  that  our multi-language capabilities,
targeted  international  sales  efforts  and  experience in penetrating non-U.S.
markets positions us favorably in non-U.S. markets.


Enhance Technology Leadership in Email Services

We  intend  to  leverage our core technology, software platform and expertise in
developing  and  managing  a  comprehensive  Web-based  email service to deliver
industry-leading   functionality   and  advanced  messaging  services.  We  have
recently   added   new   services,  including  calendar  integration,  webmaster
administration  tools, message boards, list server features and HTML editing. We
also  plan  to  offer  new services including email message language translation
and  integration of our email services with remote personal devices and wireless
access.  We  intend  to  continue to work closely with our customers to identify
new  trends  and  functionality that will be popular with end users. In addition
to  internal  development, we plan to seek, partner with and invest in companies
developing leading edge technologies to enhance our existing functionality.


Maintain Our Cost-Effective Technology Platform

Our  proprietary, open and scalable architecture gives us the flexibility to use
servers  that  provide us with the best cost-quality combination and to leverage
third-party  hosting  providers.  This  enables  us  to  achieve  a  low service
cost-per-emailbox  while  maintaining  a  high level of service quality. We will
seek  to  maintain  this cost-effective technology platform as we add additional
functionality and features to our solution.


Leverage Relationships with Go2Net, Vulcan Ventures and Microsoft

Go2Net,  Vulcan Ventures and Microsoft have invested an aggregate of $40 million
in  our  Company.  Go2Net and Vulcan Ventures have a joint representative on our
Board  of  Directors  and  we have entered into business relationships with both
Go2Net  and  Microsoft.  We  will  seek to leverage our relationships with these
customers  to  expand  our service offerings to them and to gain access to other
potential customers with whom they have relationships.


Services

We  provide  outsourced  email and messaging services to customers of all sizes.
Our  solutions  enable  these  organizations to attract, retain, communicate and
conduct ecommerce with their end users.

We  provide  our  email  and  messaging solutions through a variety of licensing
arrangements. These arrangements typically consist of one of the following:


    o  price-per-emailbox, subject to a minimum annual service fee;




                                       33
<PAGE>


    o  a minimum annual service fee plus advertising revenue sharing; or

    o  advertising revenue sharing only.

We also provide direct marketing and communications services for a fee.

For  our  ZapZone  Network  service  members, we provide our email and messaging
solutions  free of charge. We currently derive revenue from this network through
advertising and direct online marketing.

Classic Service
<TABLE>
Our Classic Service provides the following features:
<CAPTION>
- ----------------------------------------------------------------------------------------------

               Feature                                         Description

- ----------------------------------------------------------------------------------------------
<S>                                <C>
  Web-based Emailbox               Includes a full range of industry-standard functionality,
                                   such as the ability for end users to create folders, attach
                                   electronic documents, store messages, maintain a contact
                                   center, distribute lists, and establish user profiles and
                                   signatures.
- ----------------------------------------------------------------------------------------------
  Highly Customized Interface      Customers offer our email services to their end users
                                   with the customer's name included in the domain
                                   address. This repeated visibility of the customer's name
                                   promotes brand awareness and customer loyalty.
                                   Additionally, our customers can design the look and feel
                                   of their Web-based email interfaces with our proprietary
                                   customization wizard tool.
- ----------------------------------------------------------------------------------------------
  Unified Messaging                This service enables the emailbox to become an
                                   integrated communications platform allowing the user to
                                   access email and send and receive voicemail messages,
                                   faxes and pages via land or mobile phones or personal
                                   computers.
- ----------------------------------------------------------------------------------------------
  Enhanced Management Features     Includes advanced email functionality such as the ability
                                   to collect email from other email accounts, sort email
                                   and access a sent messages folder. Also includes a draft
                                   folder option, message notification upon login and
                                   IMAP4 support, which allows email folders to be
                                   accessed from multiple email environments.
- ----------------------------------------------------------------------------------------------
  Contact Center                   Enhanced address book functionality that includes the
                                   ability to create and manage groups and to import
                                   personal information from the contact databases.
- ----------------------------------------------------------------------------------------------
  Calendar Integration             The web-based calendar feature allows users to access
                                   their events and tasks from any browser. Functionality
                                   includes adding, modifying, and viewing appointments,
                                   to-do tasks, notes or events. Create recurring
                                   appointments and tasks on a daily, weekly or monthly
                                   basis setting notifications for upcoming events via email,
                                   ICQ (instant messaging) or pager.
- ----------------------------------------------------------------------------------------------
  Spam Protection                  Advanced anti-spamming controls and email filtering.
- ----------------------------------------------------------------------------------------------
</TABLE>


                                       34
<PAGE>

<TABLE>
<CAPTION>
- ----------------------------------------------------------------------------------------------

               Feature                                        Description

- ----------------------------------------------------------------------------------------------
<S>                                <C>
  Multiple Language Capability     Our email services are provided in 18 languages:
                                   English, Chinese (Simplified and Traditional), Japanese,
                                   Spanish, French, German, Portuguese, Dutch, Finnish,
                                   Danish, Norwegian, Swedish, Russian, Hebrew,
                                   Icelandic, Korean and Italian. Additionally, we provide
                                   spell-checking in many of these languages and can
                                   support more than one language on any of our customer
                                   websites, except websites using Hebrew.
- ----------------------------------------------------------------------------------------------
  Kids' Email                      An email option that enables parents to control who
                                   may correspond electronically with their children.
- ----------------------------------------------------------------------------------------------
  Unified Registration             Allows our customers to capture important demographic
                                   information as new email users sign up in conjunction
                                   with our customer's website registration process. As a
                                   result, the user will be capable of entering a single
                                   username and password for accessing other online
                                   services offered by our customers.
- ----------------------------------------------------------------------------------------------
  Integrated Instant Messaging     This integrated software application enables users to
                                   chat with one another and provide users with
                                   notification of new messages and events.
- ----------------------------------------------------------------------------------------------
  New Message Notification         For the mobile professionals, important email messages
                                   need to be alerted via offline as well as online modes.
                                   When a new message or event arrives in a user's inbox,
                                   a notification alert may be enabled via fax, pager, or
                                   voicemail. Notification at login page is also available.
- ----------------------------------------------------------------------------------------------
  Secure Login (SSL)               Secure Socket Layer (SSL) encryption protects the
                                   privacy of the login and password information
                                   transferred between end-users and the email system
                                   during sign up.
- ----------------------------------------------------------------------------------------------
  Direct Marketing Tools           With the Custom Mail Opt-In and Mail Target
                                   programs, customers have access to low-cost direct
                                   marketing tools. Includes Custom Mail Opt-In which
                                   allows users to select specific product categories from
                                   which to receive special offers and promotions targeted
                                   to their interests. Also includes Mail Target which
                                   allows our customers to send targeted marketing
                                   messages to their email user database or to an imported
                                   list.
- ----------------------------------------------------------------------------------------------
  Online Statistics                Includes around the clock online access to password
                                   protected online email usage reports that include
                                   detailed information on the number of daily users,
                                   number of page views, number of active accounts, and
                                   other important usage data for auditing and billing
                                   purposes.
- ----------------------------------------------------------------------------------------------
</TABLE>



                                       35
<PAGE>


Premium Services

<TABLE>
Our  premium  services  combine  all  of  the  features  included in our Classic
Service, plus the following features:
<CAPTION>
- ----------------------------------------------------------------------------------------------

               Feature                                          Description

- ----------------------------------------------------------------------------------------------
<S>                                 <C>
  Offline Email Client Access       End users can access their emailbox using either a Web
                                    browser or their offline client software, such as
                                    Microsoft Outlook or Eudora.
- ----------------------------------------------------------------------------------------------
  Additional Disk Space Storage     End users can increase their storage capacity up to an
                                    additional ten megabytes of disk space to maintain more
                                    folders and messages in their emailbox.
- ----------------------------------------------------------------------------------------------
  Automated, User-Defined           Incoming emails can be automatically forwarded to an
  Email Forwarding                  alternate emailbox based on the end user's pre-set
                                    criteria.
- ----------------------------------------------------------------------------------------------
  Automated, Rules-Based            Incoming emails can be automatically forwarded to the
  Pager Notification                end user's pager based on the end user's pre-set criteria.
- ----------------------------------------------------------------------------------------------
</TABLE>


The  unified messaging, email-by-phone and IP telephony services integrate third
party technology.


Planned Services
<TABLE>
We  are  developing  new messaging services to complement our existing services.
We  actively  monitor the email and communication needs of our customers and end
users  and  work to develop new features and enhancements to meet their evolving
requirements.   The  following  services  are  currently  in,  or  planned  for,
development:
<CAPTION>
- ----------------------------------------------------------------------------------------------

                Feature                                          Description

- ----------------------------------------------------------------------------------------------
<S>                                   <C>
  Enhanced Email Security             Support for SSL encryption and technologies with
                                      enhanced anti-virus and anti-vandal security measures.
                                      (Anticipated in the fourth quarter of 2000.)
- ----------------------------------------------------------------------------------------------
  Community-Building Applications     Additional functionality such as message boards and list
                                      servers, which enable frequent communication among
                                      end users. (Anticipated in the third quarter of 2000.)
- ----------------------------------------------------------------------------------------------
  Email Message Language              Email messages will be automatically translated between
  Translation                         languages according to pre-defined user preferences.
                                      (Anticipated in the fourth quarter of 2000.)
- ----------------------------------------------------------------------------------------------
</TABLE>



                                       36
<PAGE>

The  statements  in  this  prospectus  regarding  planned  service offerings and
anticipated  features  of  such offerings are forward-looking statements. Actual
service offerings and benefits could differ materially from those projected.

Direct Online Marketing Services.

We  have  a  large  and  growing  network of end users. As of December 31, 1999,
through  our  customers we serve approximately 8.4 million active emailboxes and
through  our  ZapZone  Network service, which has over 190,000 sites registered,
we  were  serving  approximately  1.0  million active emailboxes. This extensive
user  network, along with our advanced technologies and strategic relationships,
allows  us  to  offer value-added direct marketing services to our customers and
third parties. We currently provide the following services:

   Opt-in. Users   can   elect  to  receive  specific  newsletters  or  commerce
   offerings.  Whenever  end  users  choose  to establish a direct communication
   with one of our opt-in partners, we receive a referral fee.

   MailTarget. We  provide  our  customers  with  a Web-based tool which enables
   them  to  select and send tailored messages to targeted segments of their end
   user  base.  We  earn  revenues  by charging customers a fee for each message
   sent with this tool.

   Third-party  marketing  programs. In  addition  to  our  own  internal opt-in
   program,  we  also  provide other third-party direct marketing companies with
   the  opportunity  to  leverage  our  extensive  user  base  to  market  their
   products.   We   earn  revenues  by  charging  third-party  direct  marketing
   companies a fee for each message sent.

The ZapZone Network Email Service

Our  ZapZone  Network  service  delivers  email  messaging  solutions  to  small
websites   and   homepages.   This   service  enables  individuals  and  website
administrators  to  set  up  Web-based email online, often in under ten minutes.
ZapZone  Network-enabled  sites  are  able  to  provide our core Web-based email
services  to  their end users in multiple languages. Our ZapZone Network service
enables  websites  to  collect  valuable  user  demographic  information,  which
facilitates  their  ability  to  conduct targeted marketing campaigns with their
members. Webmasters can then communicate with and market to those users.


Customers

We  offer  email  and messaging communications services to businesses worldwide.
As  of  December  31,  1999,  we  provided our email services to over 250 global
customers.   Our   customer   base  includes  Internet-centric  businesses  like
community  sites  and portals, and companies where a significant online presence
is  integral  to the overall enterprise. These customers represent a broad range
of  businesses  and  services  and  are  geographically  diverse.  We  also have
customers  comprised  of  small  websites and website owners who offer Web-based
email and messaging to their end users through our ZapZone Network service.


Sales and Marketing


Sales Strategy

Our  sales  strategy  is to target businesses worldwide through a combination of
direct,  indirect  and  online  selling  initiatives.  While our salespeople are
responsible  for  selling  our  solutions  in  a  geographic  area,  they  often
collaborate   to   recruit   new   customers,  particularly  when  dealing  with
multinational  organizations.  Our  sales  offices  are  located in Santa Clara,
California,  New  York,  New York, London, England, and Netanya, Israel. We plan
to  extend  our sales force into Europe and Japan within the next 12 months. Our
sales  force  includes salespeople who focus on acquiring new customers, as well
as  dedicated salespeople who cultivate existing customers and seek to sell them
premium  and  other services. As of December 31, 1999, we had 30 salespeople. We
also  plan  to  pursue joint ventures with local partners in attractive non-U.S.
markets to assist us in the penetration of those markets.



                                       37
<PAGE>

Marketing Strategy

Our  marketing  strategy  is  focused  on  increasing  global  awareness  of our
solution  and  building  our  brand as a leading international provider of email
and  messaging  services. We plan to market our solution primarily through a mix
of   print   advertising,   direct   marketing,   public  relations  and  online
initiatives.  Through  our  "Powered  by  Commtouch"  co-branding  of  our email
solution  on  customers' websites, we increase our brand awareness and receive a
significant  number  of  click-through  business  leads. We plan to aggressively
promote  our  premium  services  to  our  customers  and their end users and our
direct  e-marketing  services  to  our customers and third parties. We intend to
leverage   our   direct  sales  force  and  develop  co-branding  and  marketing
opportunities  with other online organizations to augment our marketing efforts.


Customer Support

Commtouch  provides  its  customers  rapid callback technical support 24 hours a
day,  seven  days a week. We initally developed a proprietary software tool that
provides  end  users  with  immediate  online  support without intervention from
customer  service representatives or technical staff and subsequently have begun
implementation  of  other  customer  relationship  management  applications.  We
believe  that  this  technical  support model enables us to provide high quality
and cost-effective support service to our customers and end users.


Technology

We  leverage  our  nine  years  of  email  and  technology  experience to create
world-class,  robust,  full-featured,  reliable email solutions. We believe that
our  Web-based  email  solutions  possess  three  major  advantages  over  other
Web-based email solutions:


Scalable and Reliable Modular System Architecture

Our  Web-based  email system is designed to provide maximum flexibility. We have
developed  a  system  architecture  consisting  of  three  main  components: Web
servers,  mail servers and database servers. Web servers are responsible for the
front-end  email  application,  mail servers are responsible for the storage and
transmittal  of  email messages and database servers are responsible for storing
all  other  important  end user and customer information. These servers interact
through  standard  communications  protocols  such as HTTP, IMAP4, POP3 and SMTP
and ODBC.



                                       38
<PAGE>


                            Hardware Infrastructure



                               [GRAPHIC OMITTED]



The  modularity  of  our network architecture provides several key technological
advantages:

Rapidly  deployable  and  cost-effective. The design of our system enables us to
significantly  reduce  our  deployment  time  as  well  as costs to support each
mailbox.

    o  We outsource  server hosting and Internet  backbone access to third party
       providers  because they are able to offer such services at bulk rates. In
       addition,  there  are  numerous  third-party  providers  from whom we can
       obtain these services,  so our capacity is not limited and we are able to
       obtain  favorable  rates.   This   significantly   reduces  our  Internet
       connectivity and server maintenance costs.

    o  The modularity of our system  architecture allows us to choose from among
       a broad range of  industry-standard  mail servers, and select the servers
       with optimal  price/performance  characteristics.  Again,  we are able to
       obtain  these  servers  from a number of vendors,  so our capacity is not
       limited.

    o  The  outsourcing  of our  server  needs  enables us to focus on the rapid
       deployment of applications  for our clients rather than on the costly and
       time-consuming  maintenance  and  development  of  an  internal  hardware
       infrastructure.

    o  Because  third-party  mail servers are constantly  upgraded with the most
       advanced  features (LDAP support,  HTML messaging,  etc.), we are able to
       reduce  our  development  time  by  leveraging   existing   off-the-shelf
       technology and  immediately  integrating  these features into our service
       offerings.

Scalable  and  reliable. Our  modular  technology architecture enables the rapid
setup  of  full-service  email  hosting facilities and enables us to quickly and
seamlessly  expand  our  system  as our user base grows. In addition, we utilize
redundant  servers  and  server load balancing capabilities to re-direct traffic
if  a  server  malfunctions.  Our system architecture and software platform have
been   designed  to  provide  excellent  service  to  hundreds  of  millions  of
emailboxes  across  millions of domains. We believe that our robust and flexible
technology   platform  enables  us  to  maintain  one  of  the  highest  service
performance levels in the industry.




                                       39
<PAGE>


Portable. As   the   market   for   outsourced   email   systems  evolves,  some
organizations  may  demand  their  own  in-house  hosting  facility.  The highly
modular  nature  of  our  system  architecture  provides  us with the ability to
duplicate  a  system  in  another location within a period of several days. As a
result,  we  are  well-equipped to rapidly deploy email services to this growing
subset of the outsourced email systems market.


Proprietary Development Language

We   have  custom-built  a  proprietary  software  development  language  called
Application  Dynamic Markup Language (ADML) in order to maximize the flexibility
and minimize the development time of our email solutions.

The  ADML  environment  encapsulates  the  functionality and layout of a generic
Web-based  email interface, while allowing our developers to rapidly customize a
business  partner's email system with specific features. All external resources,
such  as  text  strings,  images  and  site-dependent  parameters  are stored in
various  databases. When a new site is built, the ADML code is compiled into ASP
(Microsoft's  Active Server Pages technology) code which runs on the web servers
and  translates  the ADML code into HTML. This enables the developer to build an
email  interface for a business partner without having to write a single line of
HTML code. This provides us with a competitive advantage for several reasons:

    o  we can add new functionality and features (languages,  premium and direct
       marketing services, etc.) to any business partner's existing email system
       in as little as a few hours;

    o  we can  simultaneously  upgrade more than one email system (for  example,
       immediately  making additional  languages  available to any end user of a
       ZapZone Network service email site); and

    o  we can offer automated email  customization  tools to our end users.  For
       example,  the ZapZone  Network service takes advantage of the flexibility
       provided  by ADML to allow  webmasters  to build,  customize  and  deploy
       ready-to-use email sites in very little time.




                                       40
<PAGE>


                                ADML Flow chart


                               [GRAPHIC OMITTED]


Advanced Proprietary Technologies
We have developed the following proprietary technologies:

    o  Complex  Foreign  Language  Support.   Currently,  our  system  is  fully
       double-byte-enabled  to  handle  intricate  character  languages  such as
       Chinese,  Korean  and  Japanese,  as well as  right-to-left  support  for
       languages like Hebrew and Arabic.

    o  Integrated  Open  Platform  Interface.  We have  developed an  integrated
       platform and series of application  programming interfaces that enable us
       to rapidly and fully  integrate  additional  communications  features and
       functionality into our service offering.

    o  Advanced  Direct  Marketing  Technology.  Our  MailTarget  service  is  a
       Web-based tool which provides  customers with a  user-friendly  method of
       selecting and delivering tailored messages to a targeted segment of their
       user populations.

    o  Customization  Wizard Tool. We have  developed a  proprietary  technology
       tool  which  enables  customers  to  design  the  look  and feel of their
       Web-based  email  interface so that it is consistent with their own brand
       images.




                                       41
<PAGE>


Competition

In  the  market  for  email  and  messaging  services,  we compete directly with
Web-based  email  service  providers,  including  Critical  Path,  Mail.com  and
USA.NET,  as  well  as  with  companies that develop and maintain in-house email
solutions.  In  addition,  companies  such as Software.com currently offer email
software  products to ISPs, web hosting companies, web portals and corporations.
Furthermore,   numerous   small-scale   email  providers  offer  low-cost  basic
services,  but  without scalable systems or value-added functionality. These and
other  companies  could  potentially  leverage  their  existing capabilities and
relationships  to  enter  the email service industry by redesigning their system
architecture,  pricing  and  marketing  strategies to sell through to the entire
market.   The  ability  of  these  competitors  to  offer  a  broader  suite  of
complementary  services  may  give them a considerable advantage over us. In the
future,  ISPs,  web  hosting  companies and outsourced application companies may
broaden their service offerings to include outsourced email.

Our  market's  level of competition is likely to increase as current competitors
increase  the  sophistication  of  their offerings and as new participants enter
the  market. In the future, as we expand our service offerings, we may encounter
increased  competition  in  the development and delivery of these services. Many
of  our  current  and  potential  competitors  have  longer operating histories,
larger   customer  bases,  greater  brand  recognition  and  greater  financial,
marketing  and  other  resources  than  we  do  and  may enter into strategic or
commercial  relationships  on  more  favorable  terms.  Further,  certain of our
competitors  may  offer services at or below cost. In addition, new technologies
and  the  expansion  of existing technologies may increase competitive pressures
on  us.  Increased  competition may result in reduced operating margins and loss
of market share.

We believe that our solution has the following competitive advantages:

    o  highly customizable and flexible;

    o  rapidly deployable;

    o  available in 18 languages;

    o  designed to integrate numerous messaging applications; and

    o  has the ability to effectively address multiple market needs.

However,  despite  our  competitive  positioning,  we may not be able to compete
successfully against current and future competitors.


Intellectual Property


We regard our copyrights,  service marks, trademarks,  trade secrets and similar
intellectual  property as critical to our  success,  and rely on  trademark  and
copyright  law,  trade secret  protection  and  confidentiality  and/or  license
agreements  with our  employees,  customers,  partners and others to protect our
proprietary  rights.  We have the  following  registered  trademarks:  COMMTOUCH
(registered in the U.S.); PRONTO (U.S. and other countries);  COMMTOUCH SOFTWARE
(Australia and New Zealand);  PRONTO FAMILY, PRONTO SECURE (Japan);  PRONTO MAIL
(Japan  and  New  Zealand).   We  also  have  the  following  pending  trademark
applications:  COMMTOUCH  (Israel and other  countries),  ZAPZONE  NETWORK,  ZZN
(U.S.,  Israel and other countries) and PRONTO (Mexico,  European  Community and
India).  It may be possible for  unauthorized  third  parties to copy or reverse
engineer  certain portions of our products or obtain and use information that we
regard as proprietary.  Certain end user license  provisions  protecting against
unauthorized use,  copying,  transfer and disclosure of the licensed program may
be unenforceable under the laws of certain  jurisdictions and foreign countries.
In  addition,  the laws of some  foreign  countries  do not protect  proprietary
rights to the same extent as do the laws of the United  States.  There can be no
assurance  that our means of  protecting  our  proprietary  rights in the United
States  or  abroad  will  be  adequate  or that  competing  companies  will  not
independently develop similar technology.


Other  parties may assert infringement claims against us. We may also be subject
to  legal proceedings and claims from time to time in the ordinary course of our
business, including claims of alleged



                                       42
<PAGE>

infringement  of  the trademarks and other intellectual property rights of third
parties  by  us  and  our licensees. Such claims, even if not meritorious, could
result in the expenditure of significant financial and managerial resources.

Our  ZapZone  Network service allows webmasters to select the email service name
of  their  choice.  There  is,  therefore, the possibility that they will select
email  service  names  that  may  infringe the rights of others under U.S. state
and/or  federal  or  foreign  trademark  and/or  anti-dilution  or similar laws.
ZapZone  Network  service's  placement  of  ZapZone  Network  service  icons and
advertisements  on  ZapZone Network service webmasters' web pages may contribute
to  our  perceived  liability for any allegedly infringing acts. We do not audit
webmasters'  email  service  name  choices  for compliance with any intellectual
property   rights   of   others.  However,  in  our  current  webmaster  license
agreements,  we  require  webmasters  to  indemnify us for claims resulting from
their  chosen  email  service  names;  we  also require users to indemnify us in
their   license   agreements.   Furthermore,  in  our  license  agreements  with
webmasters  and users, we expressly reserve the right to eliminate their account
or  to  change  their  email  service  names,  in  our  sole discretion. We have
received  complaints  from  several  parties that email service names chosen and
registered  by  ZapZone Network service users are similar or identical to domain
names  and/or  trademarks  in  which the complainants claim an interest. We have
responded  by  reviewing the content of the complainants' complaints, and either
(a)  sought  additional  substantiating  information (b) requested a response to
the  complaint  from  the  relevant webmaster, and/or (c) changed or deleted the
email service name in question.

We  also  intend  to  continue  to strategically license certain technology from
third  parties,  including our mail server and SSL encryption technology. In the
future,  if  we  add  certificate  technology  to  our  systems,  we may license
additional  technology from third-party vendors. We cannot be certain that these
third-party  content licenses will be available to us on commercially reasonable
terms  or that we will be able to successfully integrate the technology into our
products  and services. These third-party in-licenses may expose us to increased
risks,  including  risks associated with the assimilation of new technology, the
diversion  of  resources from the development of our own proprietary technology,
and  our inability to generate revenues from new technology sufficient to offset
associated  acquisition  and  maintenance  costs. The inability to obtain any of
these  licenses  could result in delays in product and service development until
equivalent  technology  can  be  identified,  licensed  and integrated. Any such
delays  in  services could cause our business, financial condition and operating
results to suffer.


Government Regulation

There  are  currently  few  laws  and  regulations  directly  applicable  to the
Internet  and  commercial email services. Examples include the Children's Online
Privacy  Protection  Act and related regulations in the U.S. and restrictions on
the  export  of  personal  data  from  the  European  Community.  However, it is
possible  that  a  number of laws and regulations may be adopted with respect to
the  Internet or commercial email services covering issues such as user privacy,
pricing,  content,  copyright,  distribution,  antitrust and characteristics and
quality  of  products  and  services. Further, the growth and development of the
market  for online email may prompt calls for more stringent consumer protection
laws  that  may  impose  additional  burdens  on  companies  conducting business
online.  The adoption of additional laws or regulations may impair the growth of
the  Internet  or commercial online services, which could, in turn, decrease the
demand  for  our  products and services and increase our cost of doing business,
or  otherwise  have a material adverse effect on our business, operating results
and  financial  condition.  Moreover,  the  applicability  to  the  Internet  of
existing  laws  in  various  jurisdictions  governing  issues  such  as property
ownership,  sales  and  other taxes, libel and personal privacy is uncertain and
may  take  years  to  resolve.  Any  such  new  legislation  or  regulation, the
application  of  laws  and  regulations  from  jurisdictions  whose  laws do not
currently  apply  to  our  business  or  the  application  of  existing laws and
regulations  to  the  Internet  could  have  a  material  adverse  effect on our
business, operating results and financial condition.


Employees

As  of  December  31,  1999,  we  had  214 full-time employees. None of our U.S.
employees  is  covered by a collective bargaining agreement. We believe that our
relations with our employees are good.




                                       43
<PAGE>


Israeli  law  and  certain  provisions  of  the nationwide collective bargaining
agreements  between  the  Histadrut  (General Federation of Labor in Israel) and
the  Coordinating  Bureau  of  Economic Organizations (the Israeli federation of
employers'   organizations)   apply  to  Commtouch's  Israeli  employees.  These
provisions  principally  concern  the  maximum  length  of the work day and work
week,   minimum   wages,   contributions   to  a  pension  fund,  insurance  for
work-related  accidents,  procedures  for dismissing employees, determination of
severance  pay and other conditions of employment. Furthermore, pursuant to such
provisions,  the  wages  of most of Commtouch's employees are subject to cost of
living  adjustments,  based  on changes in the Israeli Consumer Price Index. The
amounts  and  frequency  of  such  adjustments  are  modified from time to time.
Israeli  law generally requires the payment of severance pay upon the retirement
or  death  of  an employee or upon termination of employment by the employer or,
in  certain  circumstances,  by  the  employee.  Commtouch  currently  funds its
ongoing  severance obligations by making monthly payments for insurance policies
and by an accrual.

A  general  practice  in  Israel  followed  by  Commtouch,  although not legally
required,  is  the  contribution  of  funds on behalf of certain employees to an
individual   insurance  policy  known  as  "Managers'  Insurance."  This  policy
provides  a combination of savings plan, insurance and severance pay benefits to
the  insured  employee. It provides for payments to the employee upon retirement
or  death  and  secures  a  substantial portion of the severance pay, if any, to
which  the  employee  is  legally  entitled upon termination of employment. Each
participating  employee  contributes  an  amount  equal to 5% of such employee's
base  salary,  and  the  employer  contributes  between  13.3%  and 15.8% of the
employee's  base salary. Full-time employees who are not insured in this way are
entitled  to  a  savings account, to which each of the employee and the employer
makes  a  monthly  contribution  of  5% of the employee's base salary. Commtouch
also   provides  certain  employees  with  an  Education  Fund,  to  which  each
participating  employee  contributes  an amount equal to 2.5% of such employee's
base  salary,  and  the  employer  contributes  an  amount  equal to 7.5% of the
employee's base salary.


Office Locations


Our  principal  executive  offices  are  located  at  6  Hazoran  Street,  Poleg
Industrial   Park,   Netanya  42504,  Israel,  where  our  telephone  number  is
011-972-9-863-6888,  and  3945  Freedom  Circle,  Santa Clara, California 95054,
where  our  telephone  number  is  (408)  653-4330.  In  addition, we have sales
offices in London and New York. All of our properties are leased.



                                       44
<PAGE>

                                  MANAGEMENT


Executive Officers and Directors

<TABLE>
The  following  table  sets  forth  certain  information regarding our executive
officers and directors:
<CAPTION>
Name                       Age                         Position
- ----                       ---                         --------
<S>                        <C>     <C>

Gideon Mantel(1)    ......  40     Chief Executive Officer and Director
Amir Lev   ...............  40     President, Chief Technology Officer and Director
Isabel Maxwell   .........  49     President, Commtouch Software, Inc.
James Collins    .........  41     Chief Financial Officer and Secretary
Allan Barkat(1)  .........  40     Chairman of the Board of Directors
Yair Safrai(2)   .........  41     Director
Yoseph Sela(1)(2)   ......  47     Director
Nahum Sharfman   .........  52     Director
Richard Sorkin   .........  38     Director
Thomas Camp ..............  36     Director
<FN>
- ------------
(1) Member of the Compensation Committee
(2) Member of the Audit Committee
</FN>
</TABLE>





Other Management Employees

<TABLE>
The  following  table  sets  forth  the  names and positions of other management
employees:
<CAPTION>
Name                         Age                         Position
- ----                         ---                         --------
<S>                           <C>    <C>
Robert "Rip" Gerber ........  37     Vice President, Marketing and Ecommerce,
                                     Commtouch Software, Inc.
Avner Amram ................  38     Vice President, Operations, Commtouch
                                     Software, Inc.
Yael Elish .................  31     Vice President, Strategic Development, Commtouch
                                     Software, Inc.
Igor Gusak .................  44     Vice President and General Manager, Custom Mail
                                     (US), a division of Commtouch Software, Inc.
Yuval Neria  ...............  40     Vice President, International Sales
Ronen Rosenblatt ...........  34     Vice President, Research and Development
Ronni Zahavi ...............  33     Vice President, Human Resources
Scott Slater ...............  45     Vice President, Corporate Development
</TABLE>


Gideon  Mantel  is  a  co-founder of Commtouch and served as its Chief Financial
Officer  from  its inception in February 1991 until October 1995, when he became
Commtouch's  Chief  Operating  Officer.  In November 1997, he became Commtouch's
Chief  Executive  Officer.  He  has also served as a director of Commtouch since
inception.  Mr.  Mantel  received  a B.A. in Political Science and an M.B.A from
Tel Aviv University.


Amir Lev is a  co-founder  of Commtouch  and has served as its Chief  Technology
Officer and as a director since its inception in 1991. Mr. Lev has also been the
General  Manager of  Commtouch  since  January  1997 and in January  2000 became
President. Mr. Lev received a B.A. in Computer Science and Economics from Hebrew
University, Jerusalem.


Isabel  Maxwell  has  served  as the President of Commtouch Software, Inc. since
February  1997. Ms. Maxwell was a co-founder, and from March 1993 to August 1996
served  as  the  Senior  Vice  President  of International Business Development,
Corporate  Affairs  and  Investor  Relations,  of  The  McKinley  Group Inc., an
Internet  search  engine  company. From August 1996 to October 1996, Ms. Maxwell
was  an Executive Vice President of Excite, Inc. Ms. Maxwell received a B.A. and
M.A. in History and Modern Languages from Oxford University.


                                       45
<PAGE>


James Collins has served as the Chief Financial Officer of Commtouch since March
1999 and as the  Secretary of Commtouch  since April 1999.  From ctober 1997 to
February 1999, Mr. Collins was a private  investor.  From March 1992 to December
1996, Mr. Collins served as the Chief Financial Officer and Secretary,  and from
January 1997 to September 1997 as the Vice  President of  Operations,  of Pete's
Brewing  Company,  a specialty  brewer.  Mr. Collins received a B.S. in Business
Administration  from the  University  of the Pacific  and is a Certified  Public
Accountant in the State of California.


Allan  Barkat  has  served  as  a  Director of Commtouch since February 1996 and
Chairman  of  the  Board  of  Directors  since April 1999. From June 1999 to the
present,  Mr.  Barkat  has  been  a  Managing  Director of Apax Partner Ventures
Israel,  Ltd.  From  March  1997  to the present, Mr. Barkat has been a Managing
Director  of  Apax-Leumi  Partners, Ltd. the investment advisor to Israel Growth
Fund,  LP, a technology-focused venture capital fund. From January 1995 to March
1997,  Mr.  Barkat  served  as an Assistant Director of Apax-Leumi Partners Ltd.
From  1992  to 1994, Mr. Barkat served as Vice President of Marketing & Sales of
DSP  Communications  Group,  Inc.,  a wireless semiconductor company. Mr. Barkat
has  also served as a director of Fundtech Ltd. Mr. Barkat received a B.Sc. from
the Technion, Haifa.

Yair  Safrai  has  served  as  a  Director of Commtouch since January 1999. From
September  1996  to  the  present,  Mr.  Safrai has been the Managing Partner of
Concord  Ventures,  a technology-focused venture capital fund. From July 1994 to
September  1996,  Mr.  Safrai  served  as  Vice President of Nitzanim, a venture
capital  fund.  Mr.  Safrai received a B.A. in Management and Economics from Tel
Aviv  University,  an  M.A.  from  the University of Pennsylvania, and an M.B.A.
from the Wharton Business School, University of Pennsylvania.

Yoseph  Sela  has  served  as  a Director of Commtouch since February 1996. From
January  1993 to the present, Mr. Sela has served as Executive Vice President of
Gemini  Capital  Fund Management, a technology-focused venture capital fund. Mr.
Sela  received  a  B.Sc.  from  the  Technion, Haifa and an M.B.A. from Tel Aviv
University.

Nahum  Sharfman  will join the Board in March 2000. Mr. Sharfman is a co-founder
of  Commtouch  and  served  as  its  Chief Executive Officer and Chairman of the
Board  from  its  inception  in  February  1991.  In  November 1997 Mr. Sharfman
stepped  down  as  Chief  Executive Officer to become a founder of Dealtime.com.
Mr.  Sharfman  remained  Chairman of the Board of Commtouch until he resigned in
January  1999. Prior to founding Commtouch, Mr. Sharfman spent eleven years with
National  Semiconductor Corporation in various development and management roles.
Mr.  Sharfman  received  a  Ph.D.  in  High Energy Nuclear Physics from Carnegie
Mellon  University  and  M.S.  and  B.S.  degrees  in Physics from the Technion,
Haifa.


Richard  Sorkin  has  served  as  a Director of Commtouch since July 1999. Since
June  1998  Mr.  Sorkin has served as an advisor to several early-stage Internet
companies  and  is  a  director  of several private companies. From June 1998 to
April  1999  he  was the Chairman of the Board of Directors of ZIP2, an Internet
media  company  which  was  sold  to  Compaq. From May 1996 to June 1998, he was
Chief  Executive Officer of ZIP2 and from May 1993 to March 1996 he held various
executive  positions  with  Creative  Technology,  Ltd.,  a  leading provider of
multi-media  hardware.  Mr. Sorkin received a B.A. with honors in Economics from
Yale University and an M.B.A. from Stanford University.


Thomas  Camp  has served as a Director of Commtouch since July 1999. Since April
1999,  Mr.  Camp has served as Vice President, Business Development at Go2Net, a
network  of  branded,  technology-and  community-driven websites. From September
1990  to April 1999, he was an attorney with the law firm of Hutchins, Wheeler &
Dittmar,  most  recently  as  a stockholder. Mr. Camp received a B.A. from Tufts
University,  an  M.B.A.  from Boston College Graduate School of Management and a
J.D.  from  Boston  College  Law School. Go2Net and Vulcan Ventures Incorporated
entered  into an agreement with us in which they purchased shares and received a
warrant  to  purchase  additional  shares.  Under  that agreement, they have the
right  to  name  one  director to our board, as long as they continue to hold at
least  25% of their combined number of shares and the shares available to Go2Net
upon  exercise  of  the warrant. Mr. Camp was appointed to the board pursuant to
that agreement.



                                       46
<PAGE>

Robert  "Rip" Gerber  has served  as  Vice President, Marketing and Ecommerce of
Commtouch  Software, Inc. since March 1999. Mr. Gerber was the founder of @Once,
an  email  direct  marketing  company,  and  from February 1998 to February 1999
served  as its President. From September 1995 to January 1998, Mr. Gerber served
as  Managing Director of Pantheon Consulting Group LLC, a marketing and planning
services  company.  From August 1992 to August 1995, Mr. Gerber was a consultant
for  Deloitte & Touche LLP, a public accounting firm. Mr. Gerber received a B.S.
in  Chemical  Engineering  from  the  University  of Virginia and an M.B.A. from
Harvard Business School.

Avner  Amram  has  served  as  Vice President, Operations of Commtouch Software,
Inc.  since  April  1999.  Mr.  Amram  was  Director  of Operations of Commtouch
Software,  Inc.  from  March  1998 to April 1999 and a Software Team Leader from
March  1996  to  March 1998. Mr. Amram received a B.Sc. in Computer Science from
the Technion, Haifa.

Yael  Elish has served as the Vice President, Strategic Development of Commtouch
Software,  Inc. since April 1999. Ms. Elish was Commtouch's Director of Business
Development  from  August  1998  to  March  1999 and was Commtouch's Director of
Sales  from  December  1996 to August 1998. From August 1993 to August 1996, Ms.
Elish  was  a  Marketing  Manager  of  Widecom  Ltd.,  a  provider  of  Internet
integration  services  and  software  development.  Ms. Elish received a B.A. in
International Relations from Hebrew University in Jerusalem.

Igor  Gusak  has  served  as the Vice President and General Manager, Custom Mail
(US),  a  division  of Commtouch Software, Inc., since April 1999. Dr. Gusak was
the Director of Sales and Marketing
of  Commtouch  from  February  1997  to  March 1999 and the Director of Original
Equipment  Manufacturer  Sales  for Commtouch from January 1995 to January 1997.
Dr.  Gusak  received a Ph.D. in Mathematics from Urals University, Ekaterinburg,
Russia.

Yuval  Neria  has served as the Vice President, International Sales of Commtouch
since  April  1999.  Mr.  Neria  was the Director of International Marketing and
Sales  for  Commtouch from March 1997 to April 1999, the Director of Pacific Rim
Operations  for  Commtouch  from March 1996 to April 1997, a Product Manager for
Commtouch  from  March  1995  to April 1996, and a Quality Assurance Manager for
Commtouch  from  March 1993 to April 1995. Mr. Neria received a B.A. in Computer
Science from the City University of New York.


Ronen  Rosenblatt  has served as the Vice President, Research and Development of
Commtouch  since  April  1999. Mr. Rosenblatt served as the Director of Research
and  Development  for Commtouch from November 1994 to March 1999. Mr. Rosenblatt
received  a  B.Sc.  in  Electronics  and  Computer  Engineering  from  Tel  Aviv
University.

Ronni  Zahavi  has  served  as  a  Vice  President Human Resources for Commtouch
Software  Ltd.  since  July  1999.  From  June 1997 to July 1999, Mr. Zehavi was
Human  Resources and Training Manager at Mondex -- Electronic Cash, a subsidiary
of  Mastercard  International.  From  January  1994  to  June  1997,  he  was an
organizational  consultant. Mr. Zehavi received his BA in Educational Psychology
and  History  from  Tel Aviv University, and received his M.A. in Organizational
Sociology from Bar-Ilan University.


Scott  Slater  has  served  as  the  Vice  President,  Corporate  Development of
Commtouch  since  December 1999. From February 1998 to December 1999, Mr. Slater
was  Senior  Vice  President,  Business  Development for NewsReal, Inc. and from
September,  1996 to February, 1998, Mr. Slater was President and Chief Executive
Officer  of  O2Works,  Inc.  Mr.  Slater studied psychology at Boston University
from 1972 to 1976.


Election of Directors

Directors  are  elected  by  shareholders  at  the annual general meeting of the
shareholders  and  hold  office  until the annual general meeting next following
the  annual general meeting or general meeting at which such Director is elected
and  until  his  successor  is elected or until he is removed. An annual general
meeting  shall  be  held at least once in every calendar year, but not more than
fifteen  months  after  the last preceding annual general meeting. Directors may
be removed and other directors may


                                       47
<PAGE>

be  elected in their place or to fill vacancies in the Board of Directors at any
time  by  the  holders of a majority of the voting power at a general meeting of
the  shareholders.  Until  a vacancy is filled by the shareholders as aforesaid,
the  Board  of Directors may appoint new directors temporarily to fill vacancies
on  the  Board  of Directors. The Articles of Association of Commtouch authorize
nine  directors or such greater number as may be determined from time to time by
an  ordinary  resolution  of the shareholders. There are no family relationships
among any of the directors, officers or key employees of Commtouch.


Alternate Directors

The  Articles  of Association of Commtouch provide that any director may appoint
another  person to serve as an alternate director and may remove such alternate.
Any  alternate director possesses all the rights and obligations of the director
who  appointed  him,  except  that  the alternate has no standing at any meeting
while  the  appointing director is present, and the alternate is not entitled to
remuneration.  A person who is not qualified to be appointed as a director, or a
person  who  already  serves  as a director or an alternate director, may not be
appointed  as  an  alternate director. Unless the appointing director limits the
time  or scope of the appointment, the appointment is effective for all purposes
until  the  appointing  director  ceases  to  be  a  director  or terminates the
appointment.  The  appointment  of  an  alternate  director  does  not in itself
diminish the responsibility of the appointing director as a director.


Independent and Outside Directors

The  new  Israeli Companies Law, which took effect on February 1, 2000, requires
Israeli  companies  with  shares  that  have  been  offered  to the public in or
outside  of  Israel  to appoint at least two outside directors. No person may be
appointed  as  an  outside  director  if  the  person  or the person's relative,
partner,  employer  or  any  entity under the person's control has or had, on or
within  the two years preceding the date of the person's appointment to serve as
outside  director,  any  affiliation with the company or any entity controlling,
controlled  by  or  under  common control with the company. The term affiliation
includes:

    o  an employment relationship;

    o  a business or professional relationship maintained on a regular basis;

    o  control; and

    o  service as an office holder.

No  person  may  serve  as an outside director if the person's position or other
business  activities  create,  or  may  create,  a conflict of interest with the
person's  responsibilities  as  an  outside  director or may otherwise interfere
with  the  person's  ability  to  serve  as an outside director. If, at the time
outside  directors  are  to  be  appointed,  all current members of the Board of
Directors  are of the same gender, then at least one outside director must be of
the other gender.

Outside  directors  are  to  be  elected  by  a majority vote at a shareholders'
meeting, provided that either:

    o  such  majority  includes  at  least  one-third  of  the  shares  held  by
       non-controlling  shareholders,  as that term is defined in the  Companies
       Law, who are present and voting at the meeting; or

    o  the total number of shares held by  non-controlling  shareholders  voting
       against the  election of the  director at the meeting does not exceed one
       percent of the aggregate voting rights in the company.

The  initial  term of an outside director is three years and may be extended for
an  additional  three  years.  Outside directors may be removed only by the same
percentage  of  shareholders  as  is required for their election, or by a court,
and   then   only   if  the  outside  director  ceases  to  meet  the  statutory
qualifications  for her appointment or if she violates her fiduciary duty to the
company.  Each committee of a company's Board of Directors must include at least
one  outside  director.  An  outside  director  is  entitled  to compensation as
provided  in  the  regulations  adopted under the Companies Law and is otherwise
prohibited  from  receiving  any  other compensation, directly or indirectly, in
connection with service provided as an outside director.




                                       48
<PAGE>


In  addition,  the  Nasdaq  National  Market  requires  us to have at least  two
independent  directors  on our  Board of  Directors  and to  establish  an audit
committee,  at least a majority of whose members are  independent of management.
We  intend  to  appoint  new  directors  who will  qualify  both as  independent
directors under the Nasdaq National Market requirements and as outside directors
under the Companies Law at our next annual shareholders  meeting,  which will be
held no later than August 1, 2000.


Audit Committee

The  Companies  Law requires public companies to appoint an audit committee. The
responsibilities  of  the  audit committee include identifying irregularities in
the   management   of   the  company's  business  and  approving  related  party
transactions  as  required  by  law. An audit committee must consist of at least
three  directors,  including  all  of the outside directors. The chairman of the
Board  of Directors, any director employed by or otherwise providing services to
the  company,  and  a  controlling  shareholder or any relative of a controlling
shareholder,  may not be a member of the audit committee. An audit committee may
not  approve  an action or a transaction with a controlling shareholder, or with
an  office  holder,  unless  at  the  time of approval two outside directors are
serving  as  members  of  the  audit  committee  and at least one of the outside
directors was present at the meeting in which an approval was granted.


Internal Auditor

Under  the  Companies  Law,  the  Board  of  Directors  must appoint an internal
auditor,  nominated  by the audit committee. The role of the internal auditor is
to  examine,  among other matters, whether the company's actions comply with the
law  and  orderly  business  procedure.  Under  the  Companies Law, the internal
auditor  may  be  an  employee  of  the  company but not an office holder, or an
affiliate,  or  a  relative  of an office holder or affiliate, and he or she may
not be the company's independent accountant or its representative.


Compensation Committee Interlocks and Insider Participation

The  Compensation Committee, which was established by the Board in January 1996,
is   responsible  for  determining  salaries,  incentives  and  other  forms  of
compensation   for   our   directors,  officers  and  other  employees  and  for
administering   various   incentive   compensation   and   benefit   plans.  The
Compensation  Committee  consists of the Chief Executive Officer and two outside
directors.  Allan Barkat and Yoseph Sela are currently the two outside directors
on our Compensation Committee.


Conflicts of interest may arise as a consequence of the  relationship  of one of
our directors,  Thomas Camp, with Vulcan and Go2Net, including conflicts related
to corporate  opportunities  that could be pursued by us, on the one hand, or by
Go2Net,  Vulcan  Ventures or their  affiliates,  on the other hand, or conflicts
related to  existing  or new  contractual  relationships  between us, on the one
hand,  or by Go2Net,  Vulcan  Ventures or their  affiliates,  on the other hand.
Transactions  between  us and our  officers  and  directors,  and  extraordinary
transactions  between us and our  principal  shareholders  or a third party if a
principal  shareholder  has a personal  interest in such  transaction  generally
require  the  approval  of a majority  of the board of  directors,  including  a
majority of the independent and  disinterested  outside  directors,  and in some
circumstances,  audit committee and shareholder approvals as well (See "Approval
of Certain Transactions").


Compensation of Officers and Directors

The  directors  of  Commtouch can be remunerated by Commtouch for their services
as  directors  to  the extent such remuneration is approved by Commtouch's audit
committee,  board of directors, and shareholders at a general meeting. Directors
currently  do  not receive cash compensation for their services as directors but
are  reimbursed for their expenses for each Board of Directors meeting attended.
However, see "Nonemployee Directors Stock Option Plan," below.

The  aggregate  direct  remuneration  paid  by  Commtouch  to  all directors and
executive  officers  (10 persons) in 1999 was approximately $800,000. During the
same period Commtouch accrued or set



                                       49
<PAGE>


aside  approximately  $27,000  for the same group to provide pension, retirement
or  similar  benefits. As of February 29, 2000, directors and executive officers
of  Commtouch  (10  persons)  held  stock  options  to  purchase an aggregate of
466,180 ordinary shares.



U.S. Stock Option Plan

Our  1996  CSI  Stock  Option  Plan,  which  is  the plan for U.S. employees and
consultants,  is  administered  by  our Compensation Committee. Our Compensation
Committee  consists of at least two directors who are non-employee directors, as
that  term is defined in Rule 16b-3. The Board of Directors may amend the option
plan  as  desired  without further action by Commtouch's shareholders, except as
required  by  applicable  law. The plan will continue in effect until terminated
by the Board or until January, 2006.

The  consideration  for  each  award  under  the  plan  is  established  by  the
Compensation  Committee,  and in no event shall the  exercise  price for ISOs be
less than 100% of the fair market value of the  underlying  stock on the date of
grant.  Awards  have such terms and are  exercisable  in such manner and at such
times as the Compensation Committee may determine.  Typically, an option granted
under the plan vests with  respect to  one-fourth  of the shares  subject to the
option on the first  anniversary  of the grant date and with  respect to 1/36 of
the remaining shares each month thereafter.  However, the Compensation Committee
may,  in its  discretion,  permit an  optionee  to  exercise  unvested  options,
provided  that such shares are  subjected to a right of  repurchase  in favor of
Commtouch  Software,  Inc. according to the original vesting schedule.  Each ISO
expires not more than 10 years from the date of grant.

The  1996  CSI  Stock  Option  Plan had originally reserved 1,000,000 shares for
issuance  under  the  plan. In April of 1999, the Board of Directors amended the
Plan  to  provide  for  a pool of 5,000,000 shares which may be issued under the
1996  CSI Stock Option Plan, the 1999 Israeli Share Option Plan, and the Israeli
Option Agreements issued to Israeli employees.


Israeli Option Agreements and 1999 Israeli Share Option Plan

To date we have granted options to Israeli employees and consultants pursuant to
individual  option  agreements  (the "Israeli  Option  Agreements")  rather than
pursuant to a stock  option plan.  Typically,  options  granted  pursuant to the
Israeli Option  Agreements vest in four equal annual  installments and expire no
later than ten years from the date of grant.  Substantially  all of the  Israeli
Option  Agreements  provide that only the grantee can exercise options under the
Israeli  Option  Agreements,  and the  grantee  cannot  assign or  transfer  the
options.  Moreover,  if a grantee  ceases to be employed by  Commtouch on a full
time basis,  then the grantee will have a limited  period from the  cessation of
employment in which to exercise any vested options. Grantees are responsible for
paying all taxes and mandatory payments upon the exercise of options.

In  connection  with  the  initial  public  offering, the Board of Directors has
approved  the  1999  Section  3(i)  Share  Option  Plan (the "1999 Israeli Share
Option  Plan").  The  1999 Israeli Share Option Plan will be administered by the
Board  of  Directors,  or  by a Share Option Committee appointed by the Board of
Directors  (currently  the  Compensation  Committee). The Board or the committee
has  full  power  to  designate  the persons entitled to receive options and the
terms  and  provisions  of the option agreements (including the number and price
of  shares  subject  to  each  grant  and  the  acceleration  of the right of an
optionee  to  exercise  in  whole  or  in  part  any previously granted option).
Typically,  an option granted under the plan vests with respect to one-fourth of
the  shares subject to the option on the first anniversary of the grant date and
with  respect to one-36th of the remaining shares each month thereafter. Options
are  exercisable  only  during  the  lifetime  of  the  optionee,  and  are  not
transferable other than by will or laws of descent.


Outstanding Options

As of February 29, 2000, stock options to purchase 2,829,342 ordinary shares had
been granted to  employees,  consultants,  executive  officers  and  nonemployed
directors under the Company's stock option plans,  net of cancelled  shares.  Of
that number  1,751,972 had not been  exercised and had exercise  prices  ranging
from $1.45 to $48.56 per share and a weighted  average per share  exercise price
of $23.26,  and were held by 271 persons;  these options have termination  dates
ranging from April 2005 to February 2010.


                                       50
<PAGE>

Certain  of  the option agreements for options granted to employees (pursuant to
the  Israeli  Option  Agreements) and to key employees (pursuant to the 1996 CSI
Stock  Option  Plan) provide for acceleration of vesting in a change of control.
Pursuant  to these agreements, 50 percent of such an employee's unvested options
will  vest at the closing of the change of control. In such event, the remainder
of  the  unvested  options,  if granted pursuant to an Israeli Option Agreement,
shall  be  subject  to  the  vesting  provisions set forth in the Israeli Option
Agreement,  and  if  granted  pursuant  to the 1996 CSI Stock Option Plan, shall
vest on the first anniversary of the change of control.

The  total  number  of  shares  which can be issued under our 1999 Israeli Share
Option  Plan,  1996  CSI  Stock  Option  Plan  and the Israeli Option Agreements
previously  issued  to  Israeli  employees is 5,000,000. The remaining 2,876,850
shares  will  be  allocated  from  time to time by the Board of Directors to the
1999 Israeli Share Option Plan and the 1996 CSI Stock Option Plan.


Employee Stock Purchase Plan


Our  1999  Employee Stock Purchase Plan, or ESPP, which was adopted by our board
of  directors  on April 18, 1999 and was approved by our shareholders on June 8,
1999,  took  effect  upon  the  closing of the initial public offering. The ESPP
provides  employees with an opportunity to purchase ordinary shares of Commtouch
through  accumulated  payroll  deductions.  We  have  reserved  150,000 ordinary
shares  for  issuance  under  the  ESPP,  of  which 26,219 shares were issued on
February  15,  2000. The  number  of ordinary shares reserved shall be increased
each  January  1 by 110 percent of the number of shares purchased under the ESPP
in  the  previous  year.  The  ESPP  is  intended  to  qualify for favorable tax
treatment  under  Section  423 of the Internal Revenue Code. Generally, the ESPP
will  be  implemented  through  a  series  of  offering  periods  of  24 months'
duration,  with  new  offering periods commencing on the first trading day on or
after  February  15  and  August  15  of  each year. However, the first offering
period  will  commence  on  the first business day on which price quotations for
Commtouch's  ordinary  shares  are  available  on the Nasdaq National Market and
will  expire on August 14, 2001. Each 24-month Offering Period will contain four
six-month  Purchase  Periods,  starting  on  each  February  15  and  August 15.
However,  the first Purchase Period will commence on the first trading day after
the  closing  of  the  offering and will end on February 14, 2000. Shares may be
purchased at the end of each purchase period.


The  ESPP will be administered by a plan administrator appointed by our Board of
Directors.  Each  employee  of  ours or of any majority-owned subsidiary of ours
who  is  customarily employed by us or a majority-owned subsidiary for more than
20  hours  per week and more than five months per calendar year will be eligible
to  participate  in  the  ESPP. No employee shall be permitted to participate in
the ESPP:

    o  if such employee,  immediately  after his or her election to participate,
       would own shares  possessing  five percent or more of the total  combined
       voting power or value of all classes of stock of the Company; or

    o  if under  the  terms of the ESPP the right of the  employee  to  purchase
       shares  would  accrue at a rate that  exceeds  $25,000 of the fair market
       value of such  shares  for each  calendar  year for which  such  right is
       outstanding.

The  ESPP  permits  an  eligible  employee  to  purchase ordinary shares through
payroll  deductions, which may not exceed 15 percent of his or her compensation,
including  incentive compensation, commissions and other bonuses. The shares are
purchased at a price equal to 85 percent of the lesser of:

    o  the fair market  value of the  ordinary  shares at the  beginning  of the
       offering  period  (provided,  however,  in the case of the first offering
       period,  this number is the price per share at which the ordinary  shares
       were offered to the public in the initial public offering); or

    o  the fair market value of the ordinary  shares at the end of each purchase
       period.

Employees  may  terminate their participation in the ESPP at any time during the
offering  period;  they may change their level of participation in the ESPP only
one  time  during  the  offering  period.  Participation  in the ESPP terminates
automatically on the participant's termination of employment with us.



                                       51
<PAGE>

In  the  event  of  a  merger,  consolidation, dissolution or liquidation of the
Company,  the  ESPP  shall terminate unless the plan of merger, consolidation or
reorganization  provides  otherwise. The Board of Directors shall have the right
to  amend,  modify  or  terminate  the  ESPP  at any time, except in cases where
shareholder approval is required by law.

1999 Nonemployee Directors Stock Option Plan

Our  1999  Nonemployee  Directors  Stock Option Plan (Directors Plan), which was
adopted  by  our  board  of  directors on April 18, 1999 and was approved by our
shareholders  on  June  8,  1999,  took  effect  upon the closing of the initial
public  offering.  Under  the  1999  Nonemployee  Directors  Stock  Option Plan,
nonemployee  members of the board of directors are eligible for automatic option
grants.  The  Directors  Plan  will  continue  in effect until terminated by the
Board or until the tenth anniversary of its effective date.

A  maximum of 250,000 ordinary shares has been authorized for issuance under the
Directors  Plan.  No  shares  have yet been issued under the Directors Plan. The
Board  of  Directors,  or  a  committee  consisting  of at least two nonemployee
directors,  will  make  all  administrative  determinations  under the Directors
Plan.

Each  individual  who  first  joins  the  Board  of  Directors  as a nonemployee
director  on  or  after  the  effective date of the initial public offering will
receive  at  that  time an option grant for 10,000 ordinary shares. In addition,
on  the  date  of  the  first  board  meeting  immediately  following the annual
shareholders  meeting,  commencing  with the annual shareholders meeting held in
2000,  the  Company  shall  grant  to  each  nonemployee director then in office
(other  than nonemployee directors who received their initial 10,000 share grant
under  the  plan  on or after the record date for such annual meeting) an option
to  purchase  10,000  ordinary  shares. In 1999, the grant was made on the first
business  day  on  which  price  quotations for Commtouch's ordinary shares were
available  on  the  Nasdaq  National  Market,  and  the fair market value of the
ordinary  shares  on that day is the price at which ordinary shares were offered
to  the  public  on that day. Each option granted under the Directors Plan shall
become  exercisable  with  respect to one fourth of the number of shares covered
by  such  option  three  months  after the date of grant and with respect to one
third  of  the  remaining  shares  subject  to  the  option  every  three months
thereafter.  Each  option  will  have an exercise price equal to the fair market
value  of the ordinary shares on the grant date of such option. Each option will
have  a  maximum  term  of ten years, but will terminate earlier if the optionee
ceases  to  be  a member of the Board of Directors. In the event of such earlier
termination,  an  optionee  may exercise options held at the date of termination
to  the  extent  then  exercisable, within three months after such date, but not
thereafter;  provided,  however,  the  optionee  has  two years from the date of
termination  to  exercise  vested options if such termination is due to death or
disability. Each option will vest automatically upon a change in control.


401(k) Plan

The  Company  has  adopted the Commtouch Software, Inc. 401(k) Savings Plan (the
"401(k)  Plan"),  which is intended to qualify under Section 401 of the Internal
Revenue  Code  of  1986,  as  amended.  All  full-time  employees  of  Commtouch
Software,  Inc. are eligible to participate in the 401(k) Plan at any time after
their  date  of  hire. Participants may make pre-tax contributions to the 401(k)
Plan  of  up  to  20%  of  their  gross wages, subject to a statutory prescribed
annual   limit.   Each   participant   will  be  fully  vested  in  his  or  her
contributions.  The  Company  may make matching contributions on a discretionary
basis  to fund the 401(k) Plan. Any employer contributions would be vested under
a  6-year  graded  schedule.  Contributions  by  the  Company,  if  any, will be
generally   deductible   by   the   Company  when  made.  Contributions  by  the
participants  or  the  Company  to the 401(k) Plan and the income earned on such
contributions  will be held in trust as required by law. Individual participants
may  direct  the  trustee  to  invest  their  accounts  in authorized investment
alternatives.


Approval of Certain Transactions

The  Companies  Law codifies the fiduciary duties that office holders, including
directors  and  executive  officers,  owe  to  a  company.  An office holder, as
defined in the Companies Law, is a director, general


                                       52
<PAGE>

manager,  chief  business manager, deputy general manager, vice general manager,
chief  business manager, executive vice president, vice president, other manager
directly  subordinate  to the managing director or any other person assuming the
responsiblities  of  any  of  the  foregoing  positions  without  regard  to the
person's  title.  An  office holder's fiduciary duties consist of a duty of care
and  a  duty  of  loyalty. The duty of loyalty includes avoiding any conflict of
interest  between  the office holder's position in the company and such person's
personal   affairs,   avoiding   any  competition  with  the  company,  avoiding
exploiting  any  corporate  opportunity  of  the  company  in  order  to receive
personal  advantage  for such person or others, and revealing to the company any
information  or  documents  relating  to  the company's affairs which the office
holder  has received due to his or her position as an office holder. Each person
listed  in  the  table  under  "Management" above is an office holder. Under the
Companies  Law,  all  arrangements  as to compensation of office holders who are
not  directors require approval of the Board of Directors unless the Articles of
Association  provide  otherwise.  Arrangements  regarding  the  compensation  of
directors also require audit committee and shareholder approval.

The  Companies Law requires that an office holder promptly disclose any personal
interest  that  he or she may have and all related material information known to
him  or  her,  in  connection  with  any existing or proposed transaction by the
company.  In  addition,  if  the transaction is an extraordinary transaction, as
defined  under  Israeli  law,  the office holder must also disclose any personal
interest  held  by  the office holder's spouse, siblings, parents, grandparents,
descendants,  spouse's  descendants  and the spouses of any of the foregoing, or
by  any  corporation  in  which  the  office holder is a five percent or greater
shareholder,  director or general manager or in which he or she has the right to
appoint  at  least  one  director  or  the  general  manager.  An  extraordinary
transaction  is defined as a transaction not in the ordinary course of business,
a  transaction  that  is not on market terms, or a transaction that is likely to
have a material impact on the company's profitability, assets or liabilities.


In  the  case  of a transaction which is not an extraordinary transaction, after
the  office  holder  complies  with the above disclosure requirement, only board
approval  is required unless the Articles of Association of the company provides
otherwise.  Such  approval must determine that the transaction is not adverse to
the  company's  interest.  If  the  transaction is an extraordinary transaction,
then  in  addition  to  any  approval required by the Articles of Association it
also  must be approved by the audit committee and by the Board of Directors and,
under  specified  circumstances,  by  a  meeting of the shareholders. An Israeli
company  whose  shares are publicly traded shall not be entitled to approve such
transaction  unless,  at  the  time the approval was granted, two members of the
audit  committee  were outside directors and at least one of them was present at
the  meeting  at  which  the audit committee decided to grant the approval. This
provision  shall  not apply to companies whose shares are publicly traded abroad
until  August  1, 2000. An office holder who has a personal interest in a matter
that  is  considered  at  a  meeting  of  the  Board  of  Directors or the audit
committee generally may not be present at this meeting or vote on this matter.


The  Companies  Law  applies  the  same disclosure requirements to a controlling
shareholder  of a public company, which includes a shareholder that holds 25% or
more  of  the  voting  rights  if no other shareholder owns more that 50% of the
voting  rights  in  the  company.  Extraordinary transactions with a controlling
shareholder  or  in which a controlling shareholder has a personal interest, and
the  terms of compensation of a controlling shareholder who is an office holder,
require  the  approval  of  the  audit committee, the Board of Directors and the
shareholders of the company.

The  shareholder  approval  must  either  include  at  least  one-third  of  the
disinterested  shareholders  who  are  present,  in  person  or by proxy, at the
meeting   or,  alternatively,  the  total  shareholdings  of  the  disinterested
shareholders  who  vote against the transaction must not represent more than one
percent of the voting rights in the company.




                                       53
<PAGE>

Under  the  Companies Law, a shareholder has a duty to act in good faith towards
the  company and other shareholders and refrain from abusing his or her power in
the  company,  including,  among  other things, voting in the general meeting of
shareholders on the following matters:

    o  any amendment to the Articles of Association;

    o  an increase of the company's authorized share capital;

    o  a merger; or

    o  approval  of  interested  party  transactions  that  require  shareholder
       approval.

In  addition, any controlling shareholder, any shareholder who can determine the
outcome  of  a  shareholder  vote  and  any shareholder who, under the company's
Articles  of  Association,  can  appoint or prevent the appointment of an office
holder,  is under a duty to act with fairness towards the company. The Companies
Law does not describe the substance of this duty.

For  information  concerning  the direct and indirect personal interests of some
of  our  office  holders and principal shareholders in transactions with us, see
"Certain  Relationships  and  Related  Transactions."  See  also  "Anti-Takeover
Provisions Under Israeli Law" below.


Indemnification of Directors and Officers; Limitations on Liability

Israeli  law  permits  a  company  to  insure  an  Office  Holder  in respect of
liabilities  incurred by him or her as a result of the breach of his or her duty
of  care  to  the  company or to another person, or as a result of the breach of
his  fiduciary  duty  to  the company, to the extent that he acted in good faith
and  had  reasonable  cause  to  believe  that  the  act would not prejudice the
company.  A company can also insure an Office Holder for monetary liabilities as
a  result of an act or omission that he committed in connection with his serving
as  an Office Holder. Moreover, a company can indemnify an Office Holder for (a)
monetary  liability  imposed  upon  him  in favor of other persons pursuant to a
court  judgment,  including  a  compromise  judgment or an arbitrator's decision
approved   by   a  court  and  (b)  reasonable  litigation  expenses,  including
attorneys'  fees, actually incurred by him or imposed upon him by a court, in an
action,  suit  or  proceeding brought against him by or on behalf of the company
or  other  persons,  or  in  connection  with  a  criminal action which does not
require  criminal  intent  in which he was convicted, in each case in connection
with his activities as an Office Holder.


The  Articles  of  Association  of  Commtouch  allow  Commtouch  to  insure  and
indemnify  Office  Holders  to the fullest extent permitted by law provided such
insurance   or   indemnification   is  approved  by  the  Audit  Committee.  The
Registration  Rights  Agreement  which  we  entered into with Go2Net and Vulcan,
contains  certain  provisions  relating  to indemnification of our directors and
officers.


Certain  members  of  our  management  team  are  officers  of  our  subsidiary,
Commtouch  Software, Inc. a California corporation, or reside in California. The
Articles   of  Incorporation  of  Commtouch  Software,  Inc.  provide  that  the
liability  of  the  directors  of  Commtouch Software, Inc. for monetary damages
shall  be  eliminated to the fullest extent permissible under California law and
that  the corporation is authorized to provide for the indemnification of agents
of  the  corporation,  as  defined  in  Section  317  of  the California General
Corporation  Law,  in  excess  of  that  expressly  permitted by Section 317 for
breach  of  duty  to  the corporation and its shareholders to the fullest extent
permissible under California law.

With  respect  to  all  proceedings  other  than shareholder derivative actions,
Section  317 permits a California corporation to indemnify any of its directors,
officers  or  other  agents  only  if  such  person acted in good faith and in a
manner  such  person  reasonably  believed  to  be  in the best interests of the
corporation  and,  in the case of a criminal proceeding, had no reasonable cause
to  believe  the  conduct of such person was unlawful. In the case of derivative
actions,  a  California corporation may indemnify any of its directors, officers
or  agents  only  if such person acted in good faith and in a manner such person
believed  to  be  in the best interests of the corporation and its shareholders.
Furthermore,  in  derivative  actions,  no indemnification is permitted (i) with
respect  to  any  matter  with respect to which the person to be indemnified has
been  held liable to the corporation, unless such indemnification is approved by
the  court; (ii) of amounts paid in settling or otherwise disposing of a pending
action



                                       54
<PAGE>

without  court  approval;  or  (iii) of expenses incurred in defending a pending
action  which is settled or otherwise disposed of without court approval. To the
extent  that  a  director, officer or agent of a corporation has been successful
on  the  merits  in  defense  of  any  proceeding  for  which indemnification is
permitted  by  Section  317,  a  corporation  is  obligated  by  Section  317 to
indemnify  such  person  against  expenses  actually  and reasonably incurred in
connection with the proceeding.




                                       55
<PAGE>


                             CERTAIN TRANSACTIONS


Relationship with Go2Net

Concurrent   with   the  closing  of  the  initial  public  offering,  our  U.S.
subsidiary,  Commtouch Software, Inc., entered into a Customized Web-based Email
Service  Agreement  with Go2Net. Under that agreement, we provide customer email
services,  including  calendaring  and other products and services, to end users
of  Go2Net's  various properties, which may include cable subscribers of Charter
Communications  and  its  affiliates,  users  of  services offered by High Speed
Access  Corp.  and  any  browser,  website,  ISP  or similar service that Go2Net
sponsors  or  provides  content to. Under the agreement, Commtouch hosts, serves
and  maintains  the  email,  calendaring  and  other  services  and Go2Net sells
advertising  to  be  displayed  in  the  products  and services. Go2Net will pay
Commtouch   a   share   of  revenues  from  advertising  generated  from  email,
calendaring  or  other  services  and related upgrades provided by Commtouch for
Go2Net's  users.  The  agreement  between  Commtouch and Go2Net has a three year
duration,  but  Go2Net  has  the  right  on  each  anniversary  to terminate the
agreement.  Go2Net  also  has  the right to terminate the agreement if there are
technical  problems  with  the  products  or services provided by Commtouch. The
performance  specifications  set  forth in the agreement include requiring us to
maintain  certain levels of email system availability and response time, as well
as  technical  support  to  Go2Net's  email end users and to Go2Net, among other
things.

In  connection  with  entering  into  the email services agreement, we issued to
Go2Net  a  warrant to purchase 1,136,000 ordinary shares at an exercise price of
$12.80  per  share. The warrant is non-forfeitable, fully vested and immediately
exercisable,  and  will  expire  five  years  from the date of the email service
agreement.


Concurrent  with our entering into the email services agreement, we issued $13.3
million  in  ordinary  shares  to  Go2Net and $6.7 million in ordinary shares to
Vulcan  Ventures  in  a  private  placement at $14.88 per share. Pursuant to the
share  purchase agreement, Go2Net and Vulcan Ventures have the right to name one
director  to  our  board  as  long  as they continue to hold at least 25% of the
combined  number  of  shares  purchased by them in the private placement and the
shares  issuable  to Go2Net upon exercise of the warrant. Mr. Camp was appointed
to  the  board  pursuant to that agreement. In connection with this transaction,
we  agreed  to  pay U.S. Bancorp Piper Jaffray an advisory fee of $550,000 under
the terms of an engagement letter agreement dated as of July 5, 1999.


We  agreed to register the shares and warrant described above promptly after the
closing  of  the  initial  public  offering.  The  registration statement became
effective on January 7, 2000.


Ordinary Share Financings

Mr.  Yiftah  Atir,  a director of Commtouch, is a Managing Director of Evergreen
Canada  Management  Ltd.,  the  general  partner  of Harbour Vest-Evergreen L.P.
Pursuant  to  several  Share  Purchase  Agreements  we  issued and sold ordinary
shares  to  Evergreen  Canada Israel Investments and Company Ltd., Yarok Ad Fund
Investment  Partnership  L.P.  and  Gmul  Investment Company Ltd (the "Evergreen
Investors").  These shares were subsequently converted into Series A Convertible
Preferred   Shares   and   certain   of   these   shares   were  transferred  to
HarbourVest-Evergreen L.P.


Preferred Share Financings


Series   B   Convertible  Preferred  Shares. Mr.  Yoseph  Sela,  a  director  of
Commtouch,  is  an  Executive  Vice President of Gemini Capital Fund Management,
which  manages  Gemini  Israel  Fund  L.P. ("GIF"), and Mr. Allan Barkat, also a
director  of  Commtouch, is a Managing Director of Apax-Leumi Partners, which is
the  investment  advisor  to  Israel  Growth  Fund  L.P.  ("IGF"). Pursuant to a
Preferred  Share  Purchase Agreement entered into in January 1996, we issued and
sold  51,085  Series  B  Convertible  Preferred  Shares  and 13,873 warrants for
Series  B  Convertible  Preferred Shares to IGF, GIF, Dr. Ed Mlavsky, Mr. Yoseph
Sela,  and  certain  of  the  Evergreen  Investors  for  a  total  investment of
approximately  $2.3  million.  The  Evergreen Investors subsequently transferred
their shares to HarbourVest Evergreen L.P.




                                       56
<PAGE>

Series C Convertible Preferred Shares. Mr. Yair Safrai, a director of Commtouch,
is a Managing Partner of Concord  Ventures,  which manages the Concord Funds (as
defined below).  Pursuant to Preferred Share Letter  Agreements  entered into in
December  1998 and  February  1999,  we  issued  and sold  (i)  41,570  Series C
Convertible  Preferred  Shares to k.t.  Concord Venture Fund (Cayman) L.P., k.t.
Concord Venture Fund (Israel) L.P., k.t. Concord Venture Advisors  (Cayman) L.P.
and k.t. Concord Venture  Advisors  (Israel) L.P. (the "Concord  Funds"),  for a
total investment of approximately $3.0 million; (ii) 16,249 Series C Convertible
Preferred Shares to IGF for a total  investment of  approximately  $1.2 million;
and (iii) 12,779 Series C Convertible  Preferred Shares to GIF for approximately
$922,000.


Option  Exercises  and  Purchases  of  Shares  Subject  to Repurchase By Certain
Officers


Gideon Mantel is the Chief  Executive  Officer and a Director of  Commtouch.  On
March  17,  1999,  Mr.  Mantel  exercised  certain  options  granted  to  him by
Commtouch.  In consideration  for the ordinary shares purchased  pursuant to the
exercise of the options,  he provided Commtouch with a full-recourse  promissory
note dated March 17, 1999 in the  original  principal  amount of  $341,272.  The
promissory note bears interest at 4.83% annually, with payments of interest only
due on March 17 of each year and with the  balance due and payable on the fourth
anniversary of the date of the promissory note. This loan was used by Mr. Mantel
to purchase  286,120 ordinary shares of Commtouch at a weighted average purchase
price of $1.19 per share. The promissory note is  collateralized  by a pledge of
the stock purchased. The outstanding principal amount of the note as of February
29, 2000 is $341,272.

Isabel Maxwell is the President of Commtouch  Software,  Inc. On March 17, 1999,
Ms.  Maxwell  exercised  certain  options  granted  to  her  by  Commtouch.   As
consideration for the ordinary shares purchased  pursuant to the exercise of the
options, she provided Commtouch with a full-recourse promissory note dated March
17, 1999 in the original principal amount of $295,858. The promissory note bears
interest at 4.83%  annually,  with  payments of interest only due on March 17 of
each year and with the balance due and payable on the fourth  anniversary of the
date of the  promissory  note.  This loan was used by Ms.  Maxwell  to  purchase
204,040 ordinary shares of Commtouch at a purchase price of $1.45 per share. The
promissory  note is  collateralized  by a pledge  of the  stock  purchased.  The
outstanding principal amount of the note as of February 29, 2000 is $295,858.


James Collins is the Chief  Financial  Officer of Commtouch.  On March 17, 1999,
Mr.  Collins  exercised  certain  options  granted  to  him  by  Commtouch.   As
consideration for the ordinary shares purchased  pursuant to the exercise of the
options,  Mr. Collins  provided  Commtouch with a full-recourse  promissory note
dated  March  17,  1999  in the  original  principal  amount  of  $137,112.  The
promissory note bears interest at 4.83% annually, with payments of interest only
due on March 17 of each year and with the  balance due and payable on the fourth
anniversary  of the  date of the  promissory  note.  This  loan  was used by Mr.
Collins to purchase  94,560  ordinary shares of Commtouch at a purchase price of
$1.45 per share. The promissory note is  collateralized by a pledge of the stock
purchased.  The outstanding principal amount of the note as of February 29, 2000
is $137,112.


Robert  "Rip"  Gerber  is the Vice  President  of  Marketing  and  Ecommerce  of
Commtouch Software, Inc. On March 17, 1999, Mr. Gerber exercised certain options
granted to him by Commtouch.  As consideration for the ordinary shares purchased
pursuant to the exercise of the options,  Mr. Gerber  provided  Commtouch with a
promissory  note  dated  March  17,  1999 in the  original  principal  amount of
$103,617.  The  full-recourse  promissory note bears interest at 4.83% annually,
with payments of interest only due on March 17 of each year and with the balance
due and payable on the fourth  anniversary of the date of the  promissory  note.
This loan was used by Mr. Gerber to purchase 71,460 ordinary shares of Commtouch
at a purchase price of $1.45 per share. The promissory note is collateralized by
a pledge of the stock purchased. The outstanding principal amount of the note as
of February 29, 2000 is $103,617.


Scott  Slater  is  the  Vice  President  of  Corporate  Development of Commtouch
Software,  Inc.  On  December  3,  1999,  Mr.  Slater  exercised certain options
granted  to him by Commtouch. As consideration for the ordinary shares purchased
pursuant  to  the  exercise of the options, Mr. Slater


                                       57
<PAGE>


provided  Commtouch with a full-recourse  promissory note dated December 3, 1999
in the original principal amount of $150,000. The promissory note bears interest
at 4.83% annually, with payments of interest only due on December 3 of each year
and with the balance due and  payable on the fourth  anniversary  of the date of
the promissory note. This loan was used by Mr. Slater to purchase 7,500 ordinary
shares of Commtouch at a purchase price of $20.00 per share. The promissory note
is collateralized by a pledge of the stock purchased.  The outstanding principal
amount of the note as of February 29, 2000 is $150,000.




Loan  to  Dr.  Nahum  Sharfman and Relationship among Commtouch and DealTime.com
Ltd., Dr. Nahum Sharfman and Amir Ashkenazi

Dr.  Nahum  Sharfman  was a co-founder of Commtouch and served as a director and
Chairman  of  the  Board  of Directors of Commtouch from inception until January
1999.  Dr.  Sharfman  also  served  as  the Chief Executive Officer of Commtouch
until  March  31,  1998.  Dr. Sharfman rejoined the Board as a director in March
2000.  On  December  31, 1995, Commtouch made a loan of approximately $58,000 to
Dr.  Sharfman.  The loan plus linkage to the Israeli Consumer Price Index was to
have  been  repaid  within  three years, or within 30 days of the termination of
Dr.  Sharfman's  employment,  if  earlier.  At December 31, 1998 the outstanding
balance of this loan was approximately $55,000, payable in NIS.


In   1997   Dr.  Sharfman  established  DealTime.com  Ltd.  (formerly  known  as
Papricom), together with Mr. Amir Ashkenazi, a former employee of Commtouch.

During  an  interim  period  in  which  Commtouch  and  DealTime.com  Ltd.  were
negotiating  a  technology  exchange agreement, which ultimately was not signed,
Commtouch   provided   DealTime.com  Ltd.  with  certain  services  (office  and
secretarial   services,   computers  and  other  facilities  including,  without
limitation,  all payments made for or on behalf of DealTime.com Ltd.) and access
to  certain  of  Commtouch's  technology.  At  the request of DealTime.com Ltd.,
Commtouch  also  entered into a Product Distribution Agreement (the "Stock Alert
Agreement")  with  News  Alert  Inc. DealTime.com has provided technical support
and  services  to  News Alert Inc. in connection with the Stock Alert Agreement.
Commtouch   has  entered  into  three  agreements  to  clarify  the  rights  and
obligations of Commtouch, DealTime.com, Dr. Sharfman and Mr. Amir Ashkenazi.


Under the first  agreement,  Dr.  Sharfman and Mr.  Ashkenazi  acknowledge  that
Commtouch  is the sole owner of all of their  inventions  invented  during their
employment  with Commtouch and for two years  following the termination of their
employment,  which  inventions  relate  to  Commtouch's  business  and  research
activities  as of April 1, 1998 (except in the field of  e-commerce).  They also
acknowledge  Commtouch's  rights to  inventions  that result from work that they
performed  for  Commtouch  at any  time,  or which are the  subject  matter of a
specified patent application.  Dr. Sharfman and Mr. Ashkenazi also agreed not to
compete with Commtouch's actual business and research activities as they were on
April 1, 1998 (except in the field of e-commerce), through March 31, 2000.


The  second  agreement,  which  is  between  Commtouch  and  DealTime.com  Ltd.,
confirms  that DealTime.com Ltd. shall be solely responsible for all obligations
of   Commtouch   under   the  Stock  Alert  Agreement.  DealTime.com  Ltd.  also
acknowledges  that  Commtouch  is  the  sole  owner  of  the  Multimedia Desktop
Software  Technology  that  Commtouch  developed  and  that was licensed to News
Alert   Inc.,   and   Commtouch   grants   DealTime.com   Ltd.  a  royalty-free,
non-exclusive,  limited  license  to  use  that  technology  to  provide support
services  under  the Stock Alert Agreement. DealTime.com Ltd. also agreed to pay
$50,000  to  Commtouch for all of the services rendered by Commtouch and for the
license  fees  that  DealTime.com Ltd. received under the Stock Alert Agreement,
and  to  divide  any  future  revenues and license fees received under the Stock
Alert  Agreement  equally  with  Commtouch.  Commtouch, for its part, waived any
claim  to  an  equity interest in DealTime.com Ltd., and agreed that it does not
own  intellectual  property  developed by DealTime.com Ltd. other than in breach
of the agreements with DealTime.com Ltd. and Messrs. Sharfman and Ashkenazi.

Finally,  Commtouch  and  Dr.  Sharfman entered into a Termination of Employment
Agreement  requiring the repayment by Dr. Sharfman of Commtouch's loan to him by
December  31,  1999  and  the  release  to  Dr.  Sharfman of funded and unfunded
severance  pay  within  20  days  of  the date of approval


                                       58
<PAGE>


of the Termination of Employment  Agreement by our shareholders and containing a
waiver by Dr.  Sharfman of any rights  under stock  options that were granted to
him. Dr. Sharfman repaid the loan and Commtouch  released the severance payments
in the third quarter of 1999.


Loan to Amir Lev

Amir  Lev  has  been  a  director  and  executive officer of Commtouch since its
inception  in  1991.  In  1999, Mr. Lev exercised options for Commtouch ordinary
shares.  We  loaned  him $364,000 so that he could make an estimated tax payment
in  connection  with  this  option.  This  full  recourse loan was linked to the
Israeli  Consumer  Price  Index  and interest accrued at a rate of 2% per annum.
The loan was repaid in full on February 10, 2000.


Amendment to Registration Rights Agreement

The Company  and  certain  shareholders  are  parties to a  registration  rights
agreement.  On March 10, 2000,  the Company and these  shareholders  amended the
registration rights agreement to provide piggyback  registration rights to James
Collins,  Amir Lev,  Gideon  Mantel,  Isabel Maxwell and Nahum Sharfman for this
offering as long as it is closed within 60 days of the date of the amendment.


                                       59
<PAGE>


                      PRINCIPAL AND SELLING SHAREHOLDERS

The  following  table  presents information with respect to beneficial ownership
of  our  ordinary  shares as of February 29, 2000 and as adjusted to reflect the
sale of the shares offered by this prospectus by:

    o  each person or entity known to Commtouch  to own  beneficially  more than
       five percent of Commtouch's ordinary shares,

    o  each of our directors and officers known to Commtouch to own beneficially
       more than one percent of Commtouch's ordinary shares,

    o  all executive officers and directors as a group, and

    o  the Selling Shareholders.


The table includes all shares  issuable within 60 days of February 29, 2000 upon
the exercise of options,  warrants and other  rights  beneficially  owned by the
indicated  shareholders  on that date.  Beneficial  ownership is  determined  in
accordance with the rules of the Securities and Exchange Commission and includes
voting and investment  power with respect to shares.  To our  knowledge,  except
under applicable community property laws or as otherwise indicated,  the persons
named in the table have sole voting and sole investment  control with respect to
all shares beneficially  owned. The applicable  percentage of ownership for each
shareholder is based on 16,462,449  ordinary  shares  outstanding as of February
29, 2000,  (assuming in each case the issuance of 901,471  ordinary  shares upon
the  assumed net  exercise at an assumed  share price of $62.00 per share of the
in-the-money  warrant to purchase  1,136,000 ordinary shares issued to Go2Net at
an  exercise  price  of  $12.80  per  share)  and  18,131,449   ordinary  shares
outstanding  immediately following the completion of this offering,  assuming no
exercise of the underwriters'  over-allotment  option,  together with applicable
options and/or  warrants for that  shareholder.  Ordinary  shares  issuable upon
exercise of options and other rights  beneficially  owned are deemed outstanding
for the purpose of computing  the  percentage  ownership  of the person  holding
those options and other rights, but are not deemed outstanding for computing the
percentage ownership of any other person.


<TABLE>
<CAPTION>
                                           Shares Beneficially                  Shares Beneficially
                                         Owned Prior to Offering   Shares       Owned After Offering
                                         -----------------------    Being      -----------------------
        Name of Beneficial Owner          Number       Percent     Offered      Number       Percent
- ---------------------------------------- -----------   ---------   ---------   -----------   ---------
<S>                                      <C>             <C>      <C>          <C>             <C>
Thomas Camp(1) ......................... 2,253,057       13.7             0    2,253,057       12.4
  c/o Go2Net, Inc.
  999 3rd Avenue, Suite 4700
  Seattle, WA 98104
Allan Barkat(2) ........................   761,842        4.6       400,000      361,842        2.0
  Israel Growth Fund L.P.
  c/o Apax-Leumi Inc.
  15 Portland Place
  London, England
Gideon Mantel(3) .......................   427,863        2.6       100,000      327,863        1.8
  3945 Freedom Circle, Suite 730
  c/o Commtouch Software, Inc.
  Santa Clara, California 95054
Amir Lev(4) ............................   422,866        2.6       100,000      322,866        1.8
  c/o Commtouch Software Ltd.
  6 Hazoran Street
  Poleg Industrial Park, P.O. Box 8511
  Netanya 42504, Israel
Yair Safrai(5) .........................   408,900        2.5       401,400        7,500         *
  Entities affiliated with Concord Group
  11 Galgaley Haplada St. Bldg. 3
  P.O. Box 12226, Herzelia
  46733 Israel
Nahum Sharfman .........................   365,000        2.2       165,000      200,000        1.1
  22 Hameyasdim St., Karkur
  37064 Israel
</TABLE>



                                       60
<PAGE>


<TABLE>
<CAPTION>
                                                             Shares Beneficially                        Shares Beneficially
                                                           Owned Prior to Offering        Shares        Owned After Offering
                                                        ------------------------------     Being       -----------------------
               Name of Beneficial Owner                      Number          Percent      Offered       Number       Percent
- ------------------------------------------------------- ------------------   ---------   -----------   -----------   ---------
<S>                                                         <C>                <C>        <C>           <C>           <C>
Isabel Maxwell(6) .....................................       207,142           1.3          50,000       157,142        *
  c/o Commtouch Software, Inc.
  3945 Freedom Circle, Suite 730
  Santa Clara, California 95054
James E. Collins(7) ...................................       127,108            *           20,000       107,108        *
  c/o Commtouch Software, Inc.
  3945 Freedom Circle, Suite 730
  Santa Clara, California 95054
Nomura International plc ..............................        63,580            *           31,000        32,580        *
  Nomura House
  1 St. Martin's-Le-Grand
  London EC1A 4NP England
Oceanic Bank and Trust Limited ........................        31,800            *           31,800             0         0
  Fourth Fl., Euro Canadian Center
  Malborough St. and Navy Lyon Rd.
  Nassau, Bahamas
Rumson Capital, L.L.C. ................................        31,800            *           31,800             0         0
  Galleria Bldg. 1, 3rd Fl.
  2 Bridge Ave.
  Red Bank, NJ 07701
All executive officers and directors as a group
 (10 persons) .........................................     4,997,944(8)       30.1       1,236,400     3,761,544      20.6
All selling shareholders, including executive officers
 and directors: .......................................     5,125,124          31.1       1,331,000     3,794,124      20.9
<FN>
- ------------
*   Less than one percent.

(1) Includes  896,057 shares  purchased in the private  placement by Go2Net and 901,471 shares  exercisable  under a warrant
    granted to Go2Net on a net exercise basis based on the assumptions set forth in the paragraph  preceding the table.  All
    such shares as well as the warrant itself have been registered for resale under a separate prospectus.  Mr. Camp, who is
    a director  of the  Company,  is the Vice  President,  Business  Development  of Go2Net,  and as such,  may be deemed to
    beneficially own such shares. Also includes 448,029 shares purchased in the private placement by Vulcan Ventures,  which
    beneficially owns approximately  30.0% of Go2Net. Mr. Camp disclaims  beneficial  ownership of all such ordinary shares.
    Also includes 7,500 shares subject to an option held by Mr. Camp.  William D. Savoy,  Vice-President of Vulcan Ventures,
    and Diane Daggatt,  an investment analyst at Vulcan Northwest Inc., an affiliate of Vulcan Ventures,  are members of the
    board of directors of Go2Net.

(2) Represents  754,342  ordinary shares owned by Israel Growth Fund,  L.P.,  which is advised by Apax-Leumi  Partners,  its
    investment advisor and 7,500 shares subject to an option held by Mr. Barkat.  Mr. Barkat, a director of the Company,  is
    the Managing Director of Apax-Leumi  Partners and, as such, may be deemed to beneficially own such ordinary shares.  Mr.
    Barkat  disclaims  beneficial  ownership of all such ordinary shares except to the extent of his  proportional  interest
    therein.

(3) Certain of such shares are subject to a right of repurchase in favor of Commtouch Software,  Inc. Includes 26,100 shares
    subject to options held by Mr. Mantel.  Does not include 185,000  ordinary shares subject to option grants to Mr. Mantel
    which are subject to future vesting.

(4) Includes  40,250 shares subject to options held by Mr. Lev. Does not include  138,460  ordinary  shares subject  options
    granted to Mr. Lev which are subject to future vesting.

(5) Includes 331,819 ordinary shares owned by k.t. Concord Venture Fund (Cayman), L.P. ("CVF"), 66,337 ordinary shares owned
    by k.t. Concord Venture Fund (Israel), L.P. ("CVF Israel"), 2,713 ordinary shares owned by k.t. Concord Venture Advisors
    (Cayman), L.P. ("CVA"), and 531 ordinary shares owned by k.t. Concord Venture Advisors (Israel), L.P. ("CVA Israel") and
    7,500 shares subject to an option held by Mr. Safrai. Mr. Safrai, a director of the Company,  is the Managing Partner of
    Concord  Ventures,  which manages CVF, CVF Israel,  CVA and CVA Israel,  and, as such, may be deemed to beneficially own
    such ordinary shares. Mr. Safrai disclaims  beneficial ownership of all such ordinary shares except to the extent of his
    proportional interest therein.

(6) Certain of such shares are subject to a right of repurchase in favor of Commtouch  Software,  Inc. Includes 2,350 shares
    subject to options held by Ms.  Maxwell.  Does not include 3,750  ordinary  shares  subject to an option  granted to Ms.
    Maxwell.

(7) Certain of such shares are subject to a right of repurchase in favor of Commtouch  Software,  Inc. Includes 2,500 shares
    subject to an option held by Mr.  Collins.  Does not include 7,500  ordinary  shares subject to an option granted to Mr.
    Collins under the 1996 CSI Stock Option Plan.

(8) Includes 118,136 ordinary shares issuable upon exercise of options exercisable within 60 days of February 29, 2000.
</FN>
</TABLE>


                                       61
<PAGE>


                         DESCRIPTION OF SHARE CAPITAL



Description of Shares

Set  forth  below  is  a  summary of the material provisions governing our share
capital.  This  summary  is  not  complete  and should be read together with our
Memorandum  of  Association  and  Articles  of Association, copies of which have
been  filed  as  exhibits to the Registration Statement of which this prospectus
forms a part.


As of February 29, 2000,  our authorized  share capital  consisted of 40,000,000
ordinary  shares,  NIS 0.05 par  value.  As of  February  29,  2000,  there were
16,462,449 ordinary shares (assuming the net exercise of the Go2Net warrant) and
no preferred shares issued and outstanding.



Description of Ordinary Shares

All  issued  and  outstanding ordinary shares of Commtouch are, and the ordinary
shares  offered  upon  exercise  of  the Go2Net warrant when issued and paid for
will  be,  duly authorized and validly issued, fully paid and nonassessable. The
ordinary  shares  do  not  have  preemptive  rights.  Neither  our Memorandum of
Association,  Articles  of  Association  nor  the  laws  of  the State of Israel
restrict  in any way the ownership or voting of ordinary shares by non-residents
of  Israel, except with respect to subjects of countries which are in a state of
war with Israel.

Dividend and Liquidation Rights

The  ordinary  shares  offered by this prospectus, when issued, will be entitled
to  their  full  proportion of any cash or share dividend declared from the date
of the consummation of the offering.

Subject  to  the  rights  of  the  holders  of shares with preferential or other
special  rights  that  may  be  authorized,  the  holders of ordinary shares are
entitled  to  receive dividends in proportion to the sums paid up or credited as
paid  up  on  account  of  the nominal value of their respective holdings of the
shares  in  respect  of  which  the  dividend is being paid (without taking into
account  the  premium  paid  up  on  the shares) out of assets legally available
therefor  and,  in  the  event of our winding up, to share ratably in all assets
remaining  after  payment  of  liabilities in proportion to the nominal value of
their  respective  holdings  of the shares in respect of which such distribution
is  being  made,  subject  to applicable law. Our Board of Directors may declare
interim  dividends and recommend a final annual dividend only out of profits and
in  such  amounts  as  the  Board of Directors may determine. Declaration of the
final  annual dividend requires shareholder approval at a general meeting, which
may  reduce  but  not  increase such dividend from the amount recommended by the
Board of Directors. See "Dividend Policy."

In  case  of  a  share dividend, holders of shares can receive shares of a class
whether  such  class  existed prior thereto or was created therefor or shares of
the  same  class  that  conferred  upon  the  holders  the right to receive such
dividend.


Voting, Shareholder Meetings and Resolutions

Holders  of  ordinary  shares  have one vote for each ordinary share held on all
matters  submitted to a vote of shareholders. Such rights may be affected by the
future  grant  of  any special voting rights to the holders of a class of shares
with  preferential  rights.  Any  change in the registered capital of Commtouch,
including  the  creation  of  a  new  class  of  shares  with rights superior or
inferior  to existing classes of shares may be adopted by a "special resolution"
(the   resolution   of  the  holders  of  75  percent  or  more  of  the  shares
participating  in  a  general  meeting).  Once the creation of a class of shares
with  preference  rights  has  been  approved,  the Board of Directors may issue
preferred  shares,  unless the Board is limited from doing so by the Articles of
Association or a contractual provision.


An  annual  general  meeting  must be held once every calendar year at such time
(not  more  than  15 months after the last preceding annual general meeting) and
at  such  place,  either  within  or  outside  the  State  of  Israel, as may be
determined  by the Board of Directors. The quorum required for a general meeting
of  shareholders  consists  of at least two shareholders present in person or by
proxy  and holding, or representing, more than one-third of the voting rights of
the issued share capital. A


                                       62
<PAGE>

meeting  adjourned  for lack of a quorum may be adjourned to the same day in the
next  week at the same time and place, or to such time and place as the Chairman
may  determine  with  the  consent  of  the  holders of a majority of the shares
present  in  person  or  by  proxy and voting on the question of adjournment. At
such  reconvened meeting any two shareholders present in person or by proxy (and
not in default under the articles) will constitute a quorum.

Most   shareholder  resolutions,  including  resolutions  for  the  election  of
directors,  the  declaration  of  dividends,  the appointment of auditors or the
approval  of  transactions  with  Office  Holders  as  required by the Companies
Ordinance  (See  "Management  --  Approval  of  Certain  Transactions"), will be
deemed  adopted  if  approved  by  the holders of a majority of the voting power
represented  at  the meeting, in person or by proxy, and voting thereon. Certain
corporate actions such as:

    o  amending the Articles of Association;

    o  amending the Memorandum of Association;

    o  changing our name;

    o  making changes in the capital structure of Commtouch, such as a reduction
       of capital, increase of capital or share split;

    o  merger or consolidation;

    o  voluntary winding up; and

    o  authorizing a new class of shares or changing  special  rights of a class
       of shares

must  be  approved  by a "special resolution" and will be deemed adopted only if
approved  by  the  holders  of  not  less  than  75  percent of the voting power
represented  in  person  or  by  proxy at the meeting and voting thereon, and in
some cases 75 percent of the voting power of the affected class of shares.

As  of  December  31,  1999,  our  executive  officers, directors, affiliates of
directors   (excluding   Go2Net   and   Vulcan)  and  five  percent  or  greater
shareholders  owned  beneficially  an  aggregate  of  approximately  52%  of the
Company's outstanding ordinary shares. See "Principal Shareholders."


Anti-Takeover Provisions Under Israeli Law

Under  the  Companies  Law, a merger is generally required to be approved by the
shareholders  and  board  of  directors of each of the merging companies. If the
share  capital  of the company that will not be the surviving company is divided
into  different  classes of shares, the approval of each class is also required.
The  Companies  Law provides that the articles of association of companies, such
as  ours, that were incorporated prior to February 1, 2000 are deemed to include
a  provision  whereby  the  approval  of  a  merger requires a majority of three
quarters  of  those  present and voting at a general meeting of shareholders. In
addition,  a  merger  can  be  completed  only  after  all  approvals  have been
submitted  to  the  Israeli  Registrar of Companies and seventy days have passed
from  the  time  that  a  proposal for approval of the merger was filed with the
Registrar.

The  Companies  Law  provides  that an acquisition of shares in a public company
must  be  made  by means of a tender offer if as a result of the acquisition the
purchaser  would  become  a  25%  shareholder of the company. This rule does not
apply  if  there  is  already another 25% shareholder of the company. Similarly,
the  Companies  Law  provides  that an acquisition of shares in a public company
must  be  made  by  means  of tender offer if as a result of the acquisition the
purchaser  would  become  a  45% shareholder of the company, unless someone else
already  holds a majority of the voting power of the company. These rules do not
apply  if  the  acquisition  is made by way of a merger. Regulations promulgated
under  the  Companies  Law  provide  that these tender offer requirements do not
apply  to  companies  whose  shares are listed for trading outside of Israel if,
according  to  the  law in the country in which the shares are traded, including
the  rules and regulations of the stock exchange on which the shares are traded,
either:

    o  there is a  limitation  on  acquistion  of any  level of  control  of the
       company; or



                                       63
<PAGE>


    o  the  acquisition of any level of control  requires the purchaser to do so
       by means of a tender offer to the public.

Finally,   Israeli   tax   law   treats   specified  acquisitions,  including  a
stock-for-stock  swap  between  an  Israeli  company and a foreign company, less
favorably  than  does  U.S.  tax law. For example, Israeli tax law may subject a
shareholder   who  exchanges  his  ordinary  shares  for  shares  in  a  foreign
corporation to immediate taxation.

Transfer of Shares and Notices

Fully  paid ordinary shares are issued in registered form and may be transferred
freely.  Each  shareholder of record is entitled to receive at least seven days'
prior  notice  of shareholder meetings. A special resolution can be adopted only
if  shareholders  are  given  21 days' prior notice of the meeting at which such
resolution  will  be  voted  on  (unless all shareholders entitled to vote agree
that  the  meeting  may  be  held  on  a shorter notice period). For purposes of
determining  the  shareholders  entitled  to notice and to vote at such meeting,
the  Board  of  Directors may fix the record date not exceeding 90 days prior to
the date of any general meeting.

Modification of Class Rights

If  at  any  time the share capital is divided into different classes of shares,
the  rights  attached to any class (unless otherwise provided by our Articles of
Association)  may  be modified or abrogated by Commtouch by a special resolution
subject  to  the  consent  in writing of the holders of the issued shares of the
class,  or  by the adoption of a special resolution passed at a separate general
meeting of the holders of the shares of such class.


Description of Warrants

Description of Go2Net Warrant


In  connection  with  the  Customized  Web-based Email Service Agreement entered
into  between  Commtouch  and Go2Net, Commtouch issued to Go2Net a fully vested,
non-forfeitable,  warrant  to  purchase 1,136,000 ordinary shares at a per-share
exercise  price of $12.80, subject to adjustment as provided in the warrant. The
warrant  is  exercisable  at  any  time  until  it  expires on July 16, 2004. At
Go2Net's  option,  the  warrant  is  exercisable pursuant to a cashless exercise
based  on  the  average  closing  price of the ordinary shares for the five days
preceding  the  exercise.  The  Company  extended  registration rights to Go2Net
covering  the warrant and the shares issuable upon exercise of the warrant and a
registration  statement  relating  to  the  resale of the shares and the warrant
became effective on January 7, 2000.


The  holder of the warrant is given the opportunity to profit from a rise in the
market  price  of  the  ordinary  shares and the warrant. To the extent that the
warrant  is  exercised,  dilution of the interests of the Company's shareholders
will  occur.  In  addition,  the  warrant  includes  provisions which adjust the
exercise  and  price upon the occurrence of certain events which might otherwise
dilute the value of the warrant.


Description of Other Warrants

Commtouch  and  Microsoft  Corporation  entered into an Email Services Agreement
dated  October  26,  1999.  Under this agreement, Commtouch will, at Microsoft's
option,  customize,  host  and maintain email services for Microsoft websites in
the  U.S.  and  internationally. Microsoft will pay one-time fees for the set-up
and  customization  of  the email service for each website with respect to which
Microsoft  chooses  to  use  our services, as well as quarterly service fees for
the  email  service  based  on  the  number of mailboxes hosted. The term of the
agreement  shall  continue for 12 months after the first commercial distribution
date  of  the  email  service  and  Microsoft  may  extend the initial term on a
quarterly  or  annual basis upon 60 days prior written notice. The agreement may
be  terminated  by Microsoft for convenience upon 90 days' prior written notice,
or  by  either  party  upon  a material breach by the other party upon the terms
specified  in the agreement. In connection with the agreement, Commtouch granted
Microsoft  a  warrant,  exercisable until December 29, 1999, to purchase 707,965
of  Commtouch's  ordinary shares at an exercise price of $28.25 per share for an
aggregate


                                       64
<PAGE>


exercise  price  of $20.0 million. On December 29, 1999, Microsoft exercised the
warrant  and now holds 707,965 ordinary shares. We agreed to register the resale
of  these  shares  with  the SEC. The registration statement became effective on
January 7, 2000.

As  of  December 31, 1999, Commtouch had outstanding a warrant to purchase 4,860
ordinary  shares  issued  to  a  consultant. This warrant was net exercised into
4,461 ordinary shares in January 2000.


Registration Rights

The holders of convertible  preferred shares which were converted into 7,109,800
ordinary shares (the "Registrable Securities") upon effectiveness of the initial
public offering, which include certain of the Selling Shareholders, have certain
rights to register  those  shares  under the  Securities  Act. If  requested  by
holders of a majority of the Registrable Securities after the second anniversary
of the date of the initial public  offering,  Commtouch must file a registration
statement under the Securities Act covering all Registrable Securities requested
to be included by all holders of such Registrable  Securities.  Commtouch may be
required  to effect  up to two such  registrations.  Commtouch  has the right to
delay any such registration for up to 120 days under certain circumstances,  but
not more than once during any 12-month period.

In  addition, if Commtouch proposes to register any of its ordinary shares under
the  Securities  Act  other  than  in connection with a company employee benefit
plan  or  a  corporate  reorganization pursuant to Rule 145 under the Securities
Act,  or  a registration on any registration form that does not permit secondary
sales  or  does  not  include  substantially  the  same  information as would be
required  to  be  included  in  a  registration  statement  covering the sale of
Registrable  Securities,  the  holders  of  Registrable  Securities  may require
Commtouch  to  include  all  or  a portion of their shares in such registration,
although  the  managing  underwriter  of any such offering has certain rights to
limit the number of shares in such registration.

Further,  a  majority  of  the  holders  of  Registrable  Securities may require
Commtouch  to  register  all  or  any portion of their Registrable Securities on
Form  F-3  when  such  form  becomes  available to Commtouch, subject to certain
conditions  and  limitations.  All  expenses  incurred  in  connection  with all
registrations  (other  than fees, expenses and disbursements of counsel retained
by  the  holders  of  the  Registrable  Shares,  and  underwriters' and brokers'
discounts and commissions) will be borne by Commtouch.

The  registration rights described in the preceding three paragraphs expire five
years  after  the closing date of the initial public offering. The Company filed
the  registration statement of which this prospectus is a part pursuant to those
registration  rights,  to allow the Selling Securityholders to sell a portion of
their shareholdings.


In  addition, the Company granted registration rights to Go2Net, Vulcan Ventures
and  Microsoft  pursuant  to which their holdings in the Company were registered
on January 7, 2000.


James Collins, Amir Lev, Gideon Mantel,  Isabel Maxwell and Nahum Sharfman,  all
executive  officers  and/or  directors  of the  Company,  were  granted  certain
piggyback  registration  rights in connection  with this offering.  See "Certain
Transactions--Amendment to Registration Rights Agreement."


Access to Information

We   file  reports  with  the  Israeli  Registrar  of  Companies  regarding  our
registered  address,  our registered capital, our shareholders of record and the
number  of  shares  held  by  each,  the  identity  of the directors and details
regarding  security  interests  on  our assets. In addition, Commtouch must file
with  the  Israeli Registrar of Companies its Articles of Association and a copy
of  any  special  resolution  adopted  by a general meeting of shareholders. The
information  filed  with  the Registrar of Companies is available to the public.
In  addition  to  the  information available to the public, our shareholders are
entitled,  upon request, to review and receive copies of all minutes of meetings
of our shareholders.


Transfer Agent and Registrar

The  transfer  agent  and  registrar  for  our  ordinary  shares is Norwest Bank
Minnesota, N.A.



                                       65
<PAGE>



                        SHARES ELIGIBLE FOR FUTURE SALE


Future sales of substantial amounts of our ordinary shares in the public market,
or the possibility of these sales occurring,  could adversely affect  prevailing
market  prices for our ordinary  shares or our future  ability to raise  capital
through an offering of equity securities.  Upon completion of this offering,  we
will have  outstanding  18,131,449  ordinary  shares  (18,581,449  shares if the
overallotment  option is exercised),  based on shares outstanding as of February
29, 2000 (assuming the issuance of 901,471  ordinary shares upon the assumed net
exercise  at an  assumed  share  price of $62.00  per share of the  in-the-money
warrant to purchase  1,136,000  ordinary  shares issued to Go2Net at an exercise
price of $12.80 per share).  3,000,000  ordinary shares to be sold by us and the
selling  shareholders  in  this  offering  (3,450,000  ordinary  shares  if  the
underwriters'  over-allotment  option  is  exercised  in  full);  the  3,450,000
ordinary shares sold in our initial public offering;  and the 1,344,086 ordinary
shares and the warrant  exercisable for 1,136,000  ordinary shares registered in
January  2000 on behalf of Go2Net and Vulcan  Ventures,  as well as the  707,965
ordinary  shares  registered  at that time on behalf of  Microsoft,  are  freely
tradable in the public market  without  restriction  under the  Securities  Act,
unless the  shares  are held by  "affiliates"  of the  Company,  as that term is
defined in Rule 144 under the Securities Act.


The  remaining ordinary shares outstanding upon completion of this offering will
be  "restricted  securities"  as  that term is defined under Rule 144. We issued
and  sold  these  restricted  securities  in private transactions in reliance on
exemptions  from  registration  under  the Securities Act. Restricted securities
may  be sold in the public market only if they are registered or if they qualify
for  an  exemption  from  registration  under  Rule  144  or  Rule 701 under the
Securities Act, as summarized below.


Shares Subject to Lock-Up Agreements and Other Restrictions

The  selling  shareholders  have signed lock-up agreements with the underwriters
in  which  they  have  agreed  not to sell, pledge or otherwise dispose of their
shares  (other  than shares being offered by this prospectus) for a period of 90
days  from  the  date  of  this  prospectus, subject to limited exceptions. U.S.
Bancorp  Piper  Jaffray  may release this restriction wholly or partially at any
time  with  or  without notice but has no current plans to do so. In addition to
the  restrictions  imposed  by  the  securities  laws, 700,180 of the restricted
shares  were  issued  to certain Commtouch employees under agreements which give
Commtouch  Software,  Inc.  a  repurchase  option  on  any  unvested shares. The
repurchase   option   lapses  ratably  over  time.  As  of  February  29,  2000,
approximately  235,618  ordinary shares are subject to repurchase. Microsoft has
agreed  with  Commtouch  not to sell, pledge or otherwise dispose of its 707,965
ordinary  shares  (or  any  other  of  our ordinary shares which it may acquire)
until after June 29, 2000.


Shares Subject to Restriction under Rule 144

Most  of  the  restricted  shares are subject to certain volume and other resale
restrictions  pursuant  to  Rule  144  because  the  holders  are  affiliates of
Commtouch.  In  general,  under Rule 144, an affiliate of Commtouch, or a person
(including  a group of related persons whose shares must be aggregated under the
Rule)  who  has beneficially owned restricted shares for at least one year, will
be  entitled  to sell in any three-month period a number of shares that does not
exceed the greater of

    *  1% of the then outstanding ordinary shares (approximately  181,314 shares
       immediately  following completion of the offering,  assuming net exercise
       of the Go2Net warrant upon the assumptions noted above), or

    *  the  average  weekly  trading  volume  during  the  four  calendar  weeks
       preceding the date on which notice of the sale is filed with the SEC.

Sales  pursuant  to  Rule  144  are  subject to certain requirements relating to
manner  of  sale,  notice  and  availability of current public information about
Commtouch.  A  person  who  was not an affiliate of Commtouch for 90 days before
the  sale  and  who has beneficially owned the shares for at least two years may
sell under Rule 144(k) without regard to the above limitations.


                                       66
<PAGE>


Registration Rights


Some of our shareholders  have  contractual  rights which require us to register
their shares with the SEC. The  registration  statement of which this prospectus
is a part includes 832,400 ordinary shares subject to these registration rights.
Pursuant to the  registration  rights of Go2Net,  Vulcan Ventures and Microsoft,
the Company  filed a  registration  statement  covering  the resale of 1,344,086
shares and the warrant granted to Go2Net to purchase  1,136,000  ordinary shares
and the ordinary  shares  issuable upon exercise of the warrant,  as well as the
707,965 shares issued to Microsoft.  The registration statement became effective
on January 7, 2000.  In addition  to shares  previously  registered  pursuant to
these rights,  and shares to which this  prospectus  relates,  the holders of an
additional  approximately  2,851,240  ordinary shares have  registration  rights
under certain circumstances.


Shares Under Employee Benefit Plans


On  January  20,  2000,  we filed a Form S-8  registration  statement  under the
Securities Act to register 5,400,000 ordinary shares issuable in connection with
option  exercises  and shares  reserved for  issuance  under all stock plans and
agreements as well as 150,000 ordinary shares under the Company's Employee Stock
Purchase  Plan which the Company may issue to employees  from time to time.  The
Company also may issue  employee and director  stock  options from time to time.
Such options are subject to vesting periods after which the shares may be resold
by the holders,  subject to Rule 144  limitations if the holder is an affiliate.
Of 2,829,342  options issued,  125,500 option shares were vested and unexercised
as of February 29, 2000 and 1,077,370 options had been exercised.



The following table illustrates the above discussion:

<TABLE>
<CAPTION>
                               Shares Not Subject to Restrictions:
- -------------------------------------------------------------------------------------------------
<S>              <C>

   3,450,000     shares issued by the Company in initial public offering
   1,344,086     shares registered on behalf of Go2Net and Vulcan Ventures offered under
                 separate prospectus
   1,136,000     shares underlying Go2Net warrant offered under separate prospectus(1)
   1,669,000     shares being registered by the Company in this offering (not including 450,000
                 shares covered by the over-allotment option, if exercised)
   1,331,000     shares being registered by the selling shareholders in this offering
   5,313,530     shares registered on Form S-8(2)
</TABLE>

<TABLE>
<CAPTION>
Other Shares:
- ---------------------------------------------------------------------------------------------------
<S>              <C>
     235,618     restricted shares currently held by employees and subject to Company's
                 repurchase option
     707,965     shares registered on behalf of Microsoft (not freely tradable until
                 June 29, 2000)(3)
      86,470     Option shares registered on Form S-8 (see above) but subject to lock-up.
   1,707,571     shares held by selling shareholders not being registered in this offering and
                 subject to lockup agreements with underwriters expiring on June   , 2000
   2,646,000     shares held by other shareholders, of which 1,898,980 shares became eligible for
                 resale under Rule 144 through February 2000 and 747,020 shares which become
                 eligible for resale under Rule 144 on April 23, 2000 (approximately 2,200,000 of
                 these shares are subject to registration rights agreements with the Company)
<FN>
- ------------
(1)  Shares are issuable at the time of exercise and are not yet outstanding.
(2)  A total of  5,400,000  shares were  registered,  but 86,470  shares will be
     subject to lock-up.  Includes  5,250,000 option shares,  as well as 150,000
     shares under the Company's  Employee  Stock Purchase Plan which the Company
     may  issue to  employees  from  time to time.  The  Company  also may issue
     employee and  director  stock  options from time to time.  Such options are
     subject  to  vesting  periods  after  which the shares may be resold by the
     holders,  subject to Rule 144 limitations if the holder is an affiliate. Of
     2,829,342 options issued, 125,000 option shares were vested and unexercised
     as of February 29, 2000 and 1,077,370 options had been exercised.

(3)  Microsoft  has  agreed  not to sell,  pledge or  otherwise  dispose  of its
     707,965  ordinary  shares (or any other of our ordinary shares which it may
     acquire) until after June 29, 2000.

</FN>
</TABLE>



                                       67
<PAGE>

               U.S. TAX CONSIDERATIONS REGARDING ORDINARY SHARES
                          ACQUIRED BY U.S. TAXPAYERS

The  following  discussion  summarizes  the  material  U.S.  federal  income tax
consequences  arising  from the  purchase,  ownership  and sale of the  ordinary
shares.  This summary is based on the provisions of the Internal Revenue Code of
1986, as amended (the  "Code"),  final,  temporary  and proposed  U.S.  Treasury
Regulations   promulgated   thereunder,    and   administrative   and   judicial
interpretations  thereof,  in effect as of the date of this  prospectus,  all of
which are subject to change,  possibly with retroactive  effect.  Commtouch will
not seek a ruling from the  Internal  Revenue  Service with regard to the United
States  federal  income tax  treatment  relating to  investment  in the ordinary
shares and,  therefore,  no assurance  exists that the Internal  Revenue Service
will agree with the  conclusions  set forth  below.  The summary  below does not
purport to address all federal income tax  consequences  that may be relevant to
particular investors. This summary does not address the consequences that may be
applicable to particular  classes of taxpayers,  including  investors  that hold
ordinary  shares  as  part  of a  hedge,  straddle  or  conversion  transaction,
insurance  companies,  banks or other  financial  institutions,  broker-dealers,
tax-exempt organizations and investors who own (directly,  indirectly or through
attribution) 10% or more of Commtouch's  outstanding voting stock.  Further,  it
does not address the  alternative  minimum tax  consequences of an investment in
ordinary shares or the indirect  consequences to U.S. Holders, as defined below,
of equity interests in investors in ordinary  shares.  This summary is addressed
only to holders that hold ordinary  shares as a capital asset within the meaning
of Section  1221 of the Code,  are U.S.  citizens,  individuals  resident in the
United States for purposes of U.S. federal income tax, domestic  corporations or
partnerships  and estates or trusts  treated as "United  States  persons"  under
Section 7701 of the Code ("U.S. Holders").


EACH  INVESTOR  SHOULD  CONSULT  WITH  HIS  OR  HER  OWN  TAX  ADVISOR AS TO THE
PARTICULAR  U.S.  FEDERAL INCOME TAX CONSEQUENCES OF THE PURCHASE, OWNERSHIP AND
SALE  OF  ORDINARY  SHARES,  INCLUDING  THE  EFFECTS OF APPLICABLE STATE, LOCAL,
FOREIGN OR OTHER TAX LAWS AND POSSIBLE CHANGES IN THE TAX LAWS.



Tax Basis of Ordinary Shares

A  U.S.  Holder's  tax  basis in his or her ordinary shares will be the purchase
price  paid  therefor  by  such U.S. Holder. The holding period of each ordinary
share  owned by a U.S. Holder will commence on the day following the date of the
U.S.  Holder's purchase of such ordinary share and will include the day on which
the ordinary share is sold by such U.S. Holder.


Sale or Exchange of Ordinary Shares

A  U.S.  Holder's  sale  or  exchange  of  ordinary  shares  will  result in the
recognition  of  gain  or  loss  by  such  U.S. Holder in an amount equal to the
difference  between  the  amount  realized  and  the  U.S. Holder's basis in the
ordinary  shares  sold.  Subject to the following discussion of the consequences
of  Commtouch being treated as a Passive Foreign Investment Company or a Foreign
Investment  Company,  such  gain  or  loss  will be capital gain or loss if such
ordinary  shares  are  a  capital asset in the hands of the U.S. Holder. Gain or
loss  realized  on the sale of ordinary shares will be long-term capital gain or
loss  if  the  ordinary  shares sold had been held for more than one year at the
time  of  their  sale.  Long-term  capital gains recognized by certain taxpayers
generally  are  subject to a reduced rate of federal tax (currently a maximum of
20%).  If  the  U.S. Holder's holding period on the date of the sale or exchange
was  one  year  or  less,  such  gain or loss will be short-term capital gain or
loss.  Short-term  capital  gains generally are subject to tax at the same rates
as  ordinary  income.  In  general, any capital gain recognized by a U.S. Holder
upon  the  sale  or  exchange  of ordinary shares will be treated as U.S.-source
income for U.S. foreign tax credit purposes.

See  discussion  under  "Israeli Taxation and Investment Programs--Capital Gains
and  Income  Taxes  Applicable  to Non-Israeli Shareholders" for a discussion of
taxation by Israel of capital gains realized on sales of capital assets.




                                       68
<PAGE>


Treatment of Dividend Distributions

For  U.S.  federal income tax purposes, gross dividends (including the amount of
any  Israeli taxes withheld therefrom) paid to a U.S. Holder with respect to his
or  her  ordinary  shares  will be included in his or her ordinary income to the
extent  made out of current or accumulated earnings and profits of Commtouch, as
determined  based on U.S. tax principles, at the time the dividends are received
and  will  be  treated  as  foreign  source  dividend income for purposes of the
foreign  tax  credit  limitation  described  below.  Such  dividends will not be
eligible  for  the  dividends  received  deduction  allowed to U.S. corporations
under  Section  243 of the Code. Dividend distributions in excess of Commtouch's
current  and  accumulated  earnings  and  profits  will  be  treated  first as a
non-taxable  return of the U.S. Holder's tax basis in his or her ordinary shares
to  the  extent  thereof  and  then  as a gain from the sale of ordinary shares.
Dividends  paid  in  NIS  will  be  includible in income in a U.S. dollar amount
based  on  the  exchange rate at the time of their receipt, and any gain or loss
resulting  from currency fluctuations during the period from the date a dividend
is  paid  to the date such payment is converted into U.S. dollars generally will
be treated as ordinary income or loss.

Any Israeli withholding tax imposed on dividends paid to a U.S. Holder will be a
foreign income tax eligible for credit against such U.S.  Holder's U.S.  federal
income  tax  liability  subject to certain  limitations.  Alternatively,  a U.S.
Holder may claim a  deduction  for such  amount,  but only for a year in which a
U.S.  Holder  elects to do so with  respect to all  foreign  income  taxes.  The
overall limitation on foreign taxes eligible for credit is calculated separately
with respect to specific classes of income.  Dividends  distributed by Commtouch
with respect to ordinary  shares will  generally  constitute  "passive  income".
Foreign income taxes exceeding the credit  limitation for the year of payment or
accrual may be carried  back for two taxable  years and forward for five taxable
years in order to reduce  U.S.  federal  income  taxes,  subject  to the  credit
limitation  applicable in each of such years.  Other restrictions on the foreign
tax  credit  include a general  prohibition  on the use of the  credit to reduce
liability for the U.S.  individual and corporation  alternative minimum taxes by
more than 90% and an  allowance of foreign tax credits for  alternative  minimum
tax purposes only to the extent of  foreign-source  alternative  minimum taxable
income.  See "Israeli  Taxation  and  Investment  Programs -- Capital  Gains and
Income Taxes Applicable to Non-Israeli Shareholders."


Information Reporting and Backup Withholding

Any  dividends  paid on, or proceeds derived from a sale of, the ordinary shares
to,   or  by,  U.S.  Holders  may  be  subject  to  U.S.  information  reporting
requirements  and the 31% U.S. backup withholding tax unless the holder (i) is a
corporation  or other exempt recipient or (ii) provides a United States taxpayer
identification  number,  certifies  as  to  no  loss  of  exemption  from backup
withholding   and   otherwise   complies   with   any   applicable   withholding
requirements.  Any  amounts withheld under the U.S. backup withholding tax rules
will  be  allowed as a refund or a credit against the U.S. Holder's U.S. federal
income  tax, provided the required information is furnished to the U.S. Internal
Revenue Service.


Tax Status of Commtouch for U.S. Federal Income Tax Purposes

Passive  Foreign  Investment  Company. If  Commtouch were deemed to be a passive
foreign  investment company (a "PFIC") for U.S. federal income tax purposes, any
gain  recognized  by  a  U.S.  Holder  upon  the sale of ordinary shares (or the
receipt  of  certain  distributions)  generally  would  be  treated  as ordinary
income,  such  income  would be allocated over such U.S. Holder's holding period
for  such  ordinary shares and an interest charge would be imposed on the amount
of  deferred  tax  on  such  income  which  is allocated to prior taxable years.
Generally,  Commtouch will be treated as a PFIC for any tax year if, in such tax
year  or  any  prior  tax  year,  either  (i) 75% or more of its gross income is
passive  in  nature, or (ii) on average, 50% or more of its assets (by value or,
if  Commtouch  elects  or  if  Commtouch  is  treated  as  a "controlled foreign
corporation"  under the Code, by their adjusted basis for computing earnings and
profits)  produce  or  are  held for the production of passive income. Commtouch
does  not  believe  it  satisfies either of the tests for PFIC status for any of
its   pre-1999  tax  years.  Because  Commtouch  acquired  substantial  cash  in
connection with its initial public



                                       69
<PAGE>

offering  in  1999,  it is possible that Commtouch became a PFIC in its 1999 tax
year.  Commtouch  will not be able to determine whether it in fact became a PFIC
in  its  1999  tax year until its operating results for the last quarter of 1999
are  available.  If  Commtouch  did not become a PFIC in its 1999 tax year, then
Commtouch  expects  that  the  majority  of its assets will continue to generate
sufficient  levels  of  active  income  for  it to avoid PFIC treatment for U.S.
federal  income  tax  purposes  in  post-1999  tax  years.  However,  since  the
determination  whether  Commtouch is a PFIC will be made annually based on facts
and  circumstances  that,  to some extent, may be beyond Commtouch's control, if
Commtouch  did not become a PFIC in its 1999 tax year, there can be no assurance
that  Commtouch  will not become a PFIC at some time in the future. If Commtouch
were  determined  to  be a PFIC, however, a U.S. Holder could elect to treat his
or  her  ordinary  shares  as  an  interest in a qualified electing fund (a "QEF
Election"),  in  which  case,  the  U.S.  Holder would be required to include in
income  currently  his  or  her  proportionate share of Commtouch's earnings and
profits  in  years  in which Commtouch is a PFIC whether or not distributions of
such  earnings  and  profits are actually made to such U.S. Holder, but any gain
subsequently  recognized  upon  the  sale  by  such  U.S.  Holder  of his or her
ordinary  shares  generally  would  be taxed as a capital gain. Alternatively, a
U.S.  Holder  may  elect  to  mark  the  ordinary  shares  to  market  annually,
recognizing  ordinary  income  or loss (subject to certain limitations) equal to
the  difference  between  the  fair  market value of its ordinary shares and the
adjusted  basis  of such stock. See "U.S. Consequences Regarding Ordinary Shares
Acquired  by  U.S.  Taxpayers--Sale  or Exchange of Ordinary Shares" above. U.S.
Holders  should  consult  with their own tax advisers regarding the eligibility,
manner  and  advisability  of making a QEF Election if Commtouch is treated as a
PFIC.

Controlled  Foreign  Corporations. Sections  951 through 964 and Section 1248 of
the  Code  relate to controlled foreign corporations ("CFC"). The CFC provisions
may  impute some portion of such a corporation's undistributed income to certain
U.S.  shareholders  on  a  current  basis  and convert into dividend income some
portion  of  gains  on  dispositions  of stock which would otherwise qualify for
capital  gains treatment. In general, the CFC provisions will apply to Commtouch
only  if  U.S.  shareholders,  who  are  U.S.  Holders  and who own, directly or
indirectly  or by attribution, 10% or more of the total combined voting power of
all  classes  of  voting  stock own in the aggregate (or are deemed to own after
application  of  complex  attribution  rules)  more than 50% (measured by voting
power  or  value)  of  the  outstanding  stock  of Commtouch. Commtouch does not
believe  that  it  will  be  a  CFC  after  this  Offering.  It is possible that
Commtouch  could  become  a CFC in the future. Even if Commtouch were classified
as  a CFC in a future year, however, the CFC rules referred to above would apply
only  with  respect  to  U.S.  shareholders,  who  are U.S. Holders and who own,
directly  or  indirectly  or  by  attribution, 10% or more of the total combined
voting power of all classes of voting stock of Commtouch.

Personal  Holding  Company/Foreign  Personal  Holding Company/Foreign Investment
Company. A  corporation  will  be classified as a personal holding company, or a
PHC,  if (i) five or fewer individuals at any time during the last half of a tax
year  (without  regard to their citizenship or residence) directly or indirectly
or  by  attribution  own  more  than 50% in value of the corporation's stock and
(ii)  at  least  60%  of  its  ordinary  gross  income  for the taxable year, as
specially  adjusted,  consists  of  personal  holding  company  income  (defined
generally  to  include  dividends,  interest, royalties, rents and certain other
types  of  passive  income).  A PHC is subject to a United States federal income
tax  of  39.6%  on  its undistributed personal holding company income (generally
limited,  in the case of a foreign corporation, to United States source income).

A  corporation  will  be classified as a foreign personal holding company, or an
FPHC,  and  not  a  PHC  if  at  any  time  during  a tax year (i) five or fewer
individual  United  States  citizens  or  residents directly or indirectly or by
attribution  own  more  than  50% of the total combined voting power or value of
the  corporation's  stock  and (ii) at least 60% of its gross income consists of
(50%  for years following the first year it becomes a FPHC) FPHC income (defined
generally  to  include  dividends,  interest, royalties, rents and certain other
types of passive income). Each United States shareholder in an


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FPHC  is  required to include in gross income, as a dividend, an allocable share
of  the  FPHC's undistributed foreign personal holding company income (generally
the taxable income of the FPHC, as specially adjusted).

A  corporation will be classified as a foreign investment company, or an FIC, if
for  any  taxable  year it (i) is registered under the Investment Company Act of
1940,  as  amended,  as  a  management  company  or  unit investment trust or is
engaged  primarily  in  the  business  of  investing or trading in securities or
commodities  (or  any  interest therein) and (ii) 50% or more of the total value
or  the total combined voting power of all classes of the corporation's stock is
owned  directly  or indirectly (including stock owned through the application of
attribution  rules)  by  United States persons. In general, unless an FIC elects
to  distribute 90% or more of its taxable income (determined under United States
tax  principles as specially adjusted) to its shareholders, any gain on the sale
or  exchange  of  stock  in  a  foreign corporation, which was a FIC at any time
during  the  period  during  which  a  taxpayer  held  such stock, is treated as
ordinary  income  (rather than capital gain) to the extent of such shareholder's
ratable share of the corporation's accumulated earnings and profits.

Commtouch  will  not  be  able to determine whether it became a PFIC in its 1999
tax  year  until  its  operating  results  for  the  last  quarter  of  1999 are
available.  If  Commtouch  did not become a PFIC in its 1999 tax year, Commtouch
believes  that  it  will  not  be  a  PFIC  after  this Offering. Commtouch also
believes  that it is not and will not be a PHC, FPHC or FIC after this Offering.
However, no assurance can be given as to Commtouch's future status.



                    ISRAELI TAXATION AND INVESTMENT PROGRAMS

The  following  discussion  summarizes  the  material  Israeli  tax consequences
relating  to  Commtouch,  its  shareholders and ownership and disposition of its
ordinary  shares.  This  summary does not discuss all aspects of Israeli tax law
that  may  be  relevant  to  a  particular  investor  in  light  of his personal
investment  circumstances  or  to  certain types of investors subject to special
treatment  under Israeli law (for example, traders in securities or persons that
own,  directly  or  indirectly,  10%  or  more of Commtouch's outstanding voting
shares).  The following also includes a discussion of certain Israeli government
programs  benefiting various Israeli businesses such as Commtouch. To the extent
that  the  discussion  is based on new legislation yet to be subject to judicial
or  administrative  interpretation,  there  can  be  no assurance that the views
expressed  herein  will  accord with any such interpretation in the future. This
discussion  does  not  cover  all  possible  tax consequences or situations, and
investors  should  consult  their  tax  advisors  regarding the tax consequences
unique to their situation.


General Corporate Tax Structure

The  regular general corporate tax rate in Israel is 36%. However, the effective
rate  payable  by a company which derives income from an Approved Enterprise (as
further   discussed   below)   may  be  considerably  less.  See  "Law  for  the
Encouragement of Capital Investments, 1959."


Israeli  tax  loss carryforwards were approximately $22.5 million as of December
31,  1999.  The  amount  of  our  tax  loss carryforwards will be reduced by our
future taxable income.



Taxation Under Inflationary Conditions

The  Income  Tax  Law  (Adjustment  for  Inflation),  1985  (the "Adjustment for
Inflation  Law")  attempts  to  overcome  some  of the problems experienced in a
traditional  tax  system  by  an economy experiencing rapid inflation, which was
the  case  in  Israel  at the time the Adjustment for Inflation Law was enacted.
Generally,  the  Adjustment  for  Inflation  Law  was designed to neutralize for
Israeli  tax  purposes  the  erosion of capital investments in businesses and to
prevent  unintended  tax  benefits  resulting from the deduction of inflationary
financing  expenses.  The  Adjustment  for Inflation Law applies a supplementary
set  of  inflationary  adjustments to a normal taxable profit computed according
to regular historical cost principles.

The  Adjustment  for  Inflation  Law  introduced  a  special  adjustment for the
preservation  of equity for the tax purpose based on changes in the Israeli CPI,
whereby corporate assets are classified broadly


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into   fixed   (inflation   resistant)   assets   and  non-fixed  assets.  Where
shareholders'  equity,  as  defined in the Adjustment for Inflation Law, exceeds
the  depreciated  cost  of  fixed  assets, a corporate tax deduction which takes
into  account the effect of inflationary change on such excess is allowed (up to
a  ceiling  of  70%  of  taxable  income in any single tax year, with the unused
portion  permitted  to  be  carried forward on an inflation-linked basis with no
ceiling).  If the depreciated cost of fixed assets exceeds shareholders' equity,
then  such excess multiplied by the annual rate of inflation is added to taxable
income.

In  addition,  subject  to certain limitations, depreciation on fixed assets and
loss  carried  forwards  are  adjusted  for  inflation  based  on changes in the
Israeli  CPI.  The  net  effect of the Adjustment for Inflation Law on Commtouch
might  be  that  Commtouch's taxable income, as determined for Israeli corporate
tax  purposes,  will  be  different  from  Commtouch's  U.S.  dollar  income, as
reflected  in its financial statements, due to the difference between the annual
changes  in  the  CPI  and  in  the  NIS  exchange rate with respect to the U.S.
Dollar, causing changes in the actual tax rate.


Law for the Encouragement of Industry (Taxes), 1969

Commtouch  is  currently considered to qualify as an "Industrial Company" within
the  meaning  of  the  Law  for the Encouragement of Industry (Taxes), 1969 (the
"Industry  Encouragement  Law"). According to the Industry Encouragement Law, an
"Industrial  Company"  is  a  company  resident  in  Israel, at least 90% of the
income  of  which  in any tax year, determined in Israeli currency (exclusive of
income  from  defense  loans,  capital gains, interest and dividends) is derived
from  an  "Industrial  Enterprise"  that  it owns. An "Industrial Enterprise" is
defined  by  that  law as an enterprise whose major activity in a given tax year
is industrial production activity.


Included among the tax benefits for an Industrial Company are:

    o  deductions  of 12.5%  per annum of the  purchase  price of a patent or of
       know-how  that is  utilized  in the  development  or  advancement  of its
       enterprise;

    o  an election under certain  conditions to file a consolidated  return with
       additional related industrial companies;

    o  accelerated depreciation rates on equipment and buildings; and

    o  deduction of expenses  incurred in connection  with a public  issuance of
       shares listed for trading over a three year period.  The tax  authorities
       may construe this benefit to be relevant  only upon a public  issuance of
       shares in Israel.

Eligibility  for  the  benefits  under  the  Industry  Encouragement  Law is not
subject  to  receipt  of  prior  approval  from  any  governmental authority. No
assurance  can  be given that Commtouch is and will continue to be considered as
an  "Industrial  Company" or that the benefits described above will be available
in the future.



Law for the Encouragement of Capital Investments, 1959

The  Law  for  the  Encouragement  of Capital Investments, 1959, as amended (the
"Investment  Law"),  provides that a capital investment in production facilities
(or  other  eligible  facilities) may, upon application to the Israel Investment
Center,  be  designated  as an Approved Enterprise. Each certificate of approval
for  an  Approved  Enterprise  relates  to a specific capital investment program
delineated  both  by its financial scope, including its capital sources, and its
physical  characteristics,  i.e.  the  equipment  to  be  purchased and utilized
pursuant  to  the program. The tax benefits derived from any such certificate of
approval  relate  only  to taxable profits attributable to the specific Approved
Enterprise.

Commtouch's  investment  plans  have  been  granted  the  status  of an Approved
Enterprise  under the Investment Law, in two separate investment programs. These
programs  provide  Commtouch  with certain tax benefits as described below; with
regard  to the first program, Commtouch also received long-term loans guaranteed
by  the  State  of  Israel.  Under  the terms of Commtouch's Approved Enterprise
programs,  income  earned by Commtouch from its Approved Enterprises will be tax


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exempt  for a period of two  years,  commencing  with the year in which it first
earns taxable income,  and subject to a reduced corporate tax rate of 10% to 25%
for an additional  period of five to eight years (provided that the total period
of tax benefits will not extend past (i) 12 years from the year of  commencement
of production or (ii) 14 years from the year of approval of approved  enterprise
status).   The  reduced  corporate  tax  rate,  to  which  Commtouch's  Approved
Enterprise  program  will be  subject  is  dependent  on the  level  of  foreign
investment in  Commtouch.  In the event a company  operates  under more than one
approval  or  only  part of its  capital  investments  are  approved  (a  "Mixed
Enterprise"),  its  effective  corporate  tax rate is the  result of a  weighted
combination of the various applicable rates. Notwithstanding these tax benefits,
to the extent Commtouch  receives income from countries other than Israel,  such
income may be subject to withholding tax.


The  implementation  of  the  investments  under the first plan was finalized by
Commtouch  in  1995.  In  early  2000, we filed an application to supplement our
second plan and we also filed an application for a new, third plan.

Dividends  paid by companies owning approved enterprises, the source of which is
income  derived  from  an  approved  enterprise  during  the applicable benefits
period,  are  generally  taxed  at  a reduced rate of 15.0% if the dividends are
paid  during  the  benefits  period  or  at  any  time  up to 12 years after the
benefits  period.  This tax must be withheld at source by the company paying the
dividend.  In the case of a "foreign investor's company," the 12 year limitation
on  reduced  withholding  tax  on  dividends  does not apply. Subject to various
conditions,  a  foreign investor's company is a company more than 25.0% of whose
share  capital, in terms of shares, rights to profits, voting and appointment of
directors,  and of whose combined share and loan capital is owned by non-Israeli
residents.  A  dividend  paid  from income derived from an enterprise owned by a
company  which has elected the alternative benefits program during the period in
which  it  is  exempt  from tax would also generally be subject to the 15.0% tax
rate  but  would  render  the  company  liable  for  corporate tax on the amount
distributed,  which  is  defined for this purpose as including the amount of the
corporate  tax  that  applies  as a result of the distribution, at the rate that
would  have been applicable had the company not elected the alternative benefits
program,  generally  25.0%.  Generally, any dividends distributed are considered
to  be  attributable to the entire enterprise, and the effective tax rate is the
result  of  a weighted combination of the various applicable tax rates, However,
a  company  may elect to attribute any dividend distributed by it only to income
not subject to the alternative benefits program.


The  Investment  Law also provides that a company with an Approved Enterprise is
entitled  to  accelerated depreciation on its property and equipment included in
an approved investment program.

Future  applications  to  the Investment Center will be reviewed separately, and
decisions  as  to  whether  or  not  to approve such applications will be based,
among  other things, on the then prevailing criteria set forth in the Investment
Law,  on  the  specific  objectives  of  the applicant company set forth in such
applications  and  on  certain  financial  criteria  of  the  applicant company.
Accordingly,  there  can  be  no  assurance  that  any such applications will be
approved.  In  addition,  the  benefits  available to an Approved Enterprise are
conditional  upon  the  fulfillment  of  certain  conditions  stipulated  in the
Investment  Law  and  its regulations and the criteria set forth in the specific
certificate  of approval, as described above. In the event that these conditions
are  violated,  in whole or in part, the Company would be required to refund the
amount  of  tax  benefits,  with  the addition of the CPI linkage adjustment and
interest.


Capital Gains and Income Taxes Applicable to Non-Israeli Resident Shareholders

Under   existing   regulations  any  capital  gain  realized  by  an  individual
shareholder  with  respect  to  the  Ordinary  Shares  acquired  on or after the
listing  of  such  shares  for trading will be exempt from Israeli capital gains
tax  if  the Ordinary Shares are listed on an approved foreign securities market
(which  includes  Nasdaq  in  the  United  States),  provided  that  the company
continues  to qualify as an Industrial Company under Israeli law and provide the
individual does not hold such shares for business purposes.

If  we  do not maintain our status as an Industrial Company, then subject to any
applicable  tax  treaty  the  Israeli capital gains tax rates would be up to 50%
for non-Israeli resident individuals and 36% for


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companies.  Upon  a  distribution  of  dividends  other than bonus shares (stock
dividends),  income  tax  is generally withheld at source at the rate of 25% (or
the  lower  rate  of 15% payable with respect to Approved Enterprises), unless a
double  taxation  treaty  is  in  effect  between  Israel  and the shareholder's
country  of residence that provides for a lower tax rate in Israel on dividends.

A  tax  treaty between the United States and Israel (the "Treaty"), provides for
a  maximum  tax  of 25% on dividends paid to a resident of the United States (as
defined  in the Treaty). Dividends distributed by an Israeli company and derived
from  the  income  of  an  approved  enterprise  are  subject  to a 15% dividend
withholding  tax.  The  Treaty  further  provides  that a 12.5% Israeli dividend
withholding  tax applies to dividends paid to a United States corporation owning
10%  or  more  of an Israeli company's voting shares throughout the current year
to   the  date  the  dividend  is  paid  and  the  preceding  taxable  year  (as
applicable).  The  12.5% rate applies only on dividends from a company that does
not have an Approved Enterprise in the applicable period.

If  for any reason shareholders do not receive the above exemption for a sale of
shares  in  an  Industrial  Company, the Treaty provides U.S. resident investors
with  an  exemption  from  Israeli  capital  gains  tax in certain circumstances
(there  may  still  be  U.S. taxes) upon a disposition of shares in Commtouch if
they  held  under  10%  of  the  Company's voting stock throughout the 12 months
before  the  share  disposition. If Israeli capital gains tax is payable, it can
be  credited  against  U.S. federal tax under the circumstances specified in the
Treaty.

A  non-resident  of  Israel  who  has  had dividend income derived or accrued in
Israel  from which the applicable tax was withheld at source is currently exempt
from  the duty to file an annual Israeli tax return with respect to such income,
provided  such  income  was  not derived from a business carried on in Israel by
such  non-resident  and that such non-resident does not derive other non-passive
income from sources in Israel.


Tax Benefits for Research and Development


Israeli  tax  law  allows  under  certain conditions a tax deduction in the year
incurred  for  expenditures  in scientific research and development projects, if
the  expenditures  are  approved  by  the  relevant  Israeli Government Ministry
(determined  by  the  field of research) and the research and development is for
the  promotion  of  the  enterprise. Expenditures not so approved are deductible
over  a  three-year  period.  However,  expenditures made out of the proceeds of
government  grants are not deductible, i.e. Commtouch will be able to deduct the
unfunded  portion of the research and development expenditures and not the gross
amount.



Law for the Encouragement of Industrial Research and Development, 1984

Under  the  Law  for  the  Encouragement of Industrial Research and Development,
1984  (the  "Research  Law") and the Instructions of the Director General of the
Ministry  of Industry and Trade, research and development programs and the plans
for  the  intermediate stage between research and development, and manufacturing
and  sales approved by a governmental committee of the Office of Chief Scientist
(OCS)  (the  "Research  Committee")  are eligible for grants of up to 50% of the
project's  expenditure if they meet certain criteria. These grants are issued in
return  for  the  payment of royalties from the sale of the product developed in
accordance  with  the  program as follows: 3% of revenues during the first three
years,  4%  of  revenues during the following three years, and 5% of revenues in
the  seventh year and thereafter, with the total royalties not to exceed 100% of
the  dollar  value of the OCS grant (or in some cases up to 300%). Following the
full payment of such royalties, there is no further liability for payment.

The  Israeli government further requires that products developed with government
grants  be manufactured in Israel. However, in the event that any portion of the
manufacturing  is not conducted in Israel, if approval is received from the OCS,
the  Company  would be required to pay royalties that are adjusted in proportion
to  manufacturing  outside  of  Israel  as  follows:  when  the manufacturing is
performed  outside  of  Israel  by  the  Company  or  an  affiliate company, the
royalties  are  to  be paid as described above with the addition of 1%, and when
the manufacturing outside of Israel is not


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performed by the Company or an affiliate  the  royalties  paid shall be equal to
the ratio of the amount of grant  received from the OCS divided by the amount of
grant  received  from the OCS and the  investment(s)  made by the Company in the
project. The payback will also be adjusted to 120%, 150% or 300% of the grant if
the portion of manufacturing  that is performed  outside of Israel is up to 50%,
between 50% and 90%, or more than 90%,  respectively.  The technology  developed
pursuant to the terms of these grants may not be  transferred  to third  parties
without  the prior  approval of the  Research  Committee.  Such  approval is not
required  for the  export  of any  products  resulting  from  such  research  or
development.  Approval of the transfer of technology  may be granted only if the
recipient  abides by all the  provisions  of the  Research  Law and  regulations
promulgated  thereunder,  including the restrictions on the transfer of know-how
and the  obligation  to pay  royalties in an amount that may be  increased.  The
Company is subject to various provisions of the Research Law and regulations and
derivatives thereunder.


In  order  to meet certain conditions in connection with the grants and programs
of  the  OCS,  the  Company  has  made  certain  representations  to  the Israel
government  about  the  Company's  future plans for its Israeli operations. From
time  to  time  the  extent of the Company's Israeli operations has differed and
may  in  the  future  differ,  from  the  Company's  representations.  If, after
receiving  grants  under  certain  of  such  programs, the Company fails to meet
certain  conditions  to  those  benefits,  including,  with  respect  to  grants
received  from  the OCS, the maintenance of a material preserve in Israel, or if
there  is any material deviation from the representations made by the Company to
the  Israeli government, the Company could be required to refund to the State of
Israel  tax  or  other  benefits previously received (including interest and CPI
linkage  difference)  and  would  likely  be  denied  receipt  of such grants or
benefits, and participation of such programs, thereafter.

The  Company  participated  in  programs sponsored by the OCS for the support of
research  and development activities. Through December 31, 1999, the Company had
recorded  grants  from  OCS  aggregating  $653,000  for certain of the Company's
research  and development projects. The Company is obligated to pay royalties to
the  OCS  of  3%  to  5% of the sales of the products and other related revenues
developed  from  such  projects,  up  to  an amount equal to 100% to 150% of the
grants received.

Each  application to the OCS is reviewed separately, and grants are based on the
program  approved  by the Research Committee. Expenditures supported under other
incentive  programs of the State of Israel are not eligible for OCS grants. As a
result,  there can be no assurance that applications to the OCS will be approved
or, if approved, what the amounts of the grants will be.


Fund for the Encouragement of Marketing Activities

The  Company  has  received  grants  relating to its overseas marketing expenses
from  the  Marketing  Fund.  These  grants  are  awarded  for  specific expenses
incurred  by  the Company for overseas marketing and are based upon the expenses
reported  by  the  Company  to the Marketing Fund. All marketing grants recorded
from  the  Marketing  Fund until 1997 are linked to the dollar and are repayable
as  royalties  at  the  rate  of  3%  of the amount of increases in export sales
realized  by  the  Company  from  the  Marketing Fund. Grants recorded beginning
January  1,  1998 bear royalties of 4% plus interest at LIBOR rates. The Company
will  face  royalty  obligations  on  grants from the Marketing Fund only to the
extent  it  actually  achieves  increases in export sales. The proceeds of these
grants  are  presented  in  the  Company's  consolidated Financial Statements as
offsets  to  marketing  expenses.  Through  December  31,  1999, the Company had
received  grants  from  the  Marketing  Fund  in  the  amount  of  approximately
$279,000.


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                             CONDITIONS IN ISRAEL

Commtouch   is  incorporated  under  the  laws  of  the  State  of  Israel,  and
substantially  all  of  our  research  and development and significant executive
facilities  are  located  in Israel. Accordingly, Commtouch is directly affected
by  political,  economic and military conditions in Israel. Our operations would
be  materially  adversely  affected if major hostilities involving Israel should
occur  or  if  trade  between  Israel and its present trading partners should be
curtailed.


Political Conditions

Since  the  establishment  of  the  State  of  Israel in 1948, a number of armed
conflicts  have  taken  place  between Israel and its Arab neighbors. A state of
hostility,  varying  from  time  to  time  in  intensity  and degree, has led to
security  and  economic  problems for Israel. However, a peace agreement between
Israel  and  Egypt  was  signed  in  1979,  a peace agreement between Israel and
Jordan  was  signed  in  1994 and, since 1993, several agreements between Israel
and  Palestinian  representatives  have  been  signed.  In  addition, Israel and
several  Arab States have announced their intention to establish trade and other
relations  and  are discussing certain projects. Israel has not entered into any
peace  agreement  with Syria or Lebanon, and there have been difficulties in the
negotiations  with  the  Palestinians.  We cannot be certain as to how the peace
process will develop or what effect it may have upon Commtouch.

Despite  the  progress  towards  peace between Israel and its Arab neighbors and
the  Palestinians,  certain  countries,  companies and organizations continue to
participate  in  a boycott of Israeli firms. Commtouch does not believe that the
boycott  has  had  a material adverse effect on Commtouch, but restrictive laws,
policies  or practices directed towards Israel or Israeli businesses may have an
adverse impact on the expansion of Commtouch's business.

Generally,  all  male adult citizens and permanent residents of Israel under the
age  of  51  are  obligated  to  perform  up to 39 days, or longer under certain
circumstances,  of  military  reserve  duty  annually.  Additionally,  all  such
residents  are  subject  to  being  called  to  active  duty  at  any time under
emergency  circumstances.  Currently,  a  majority of our officers and employees
are   obligated   to  perform  annual  reserve  duty.  While  we  have  operated
effectively  under  these  requirements since we began operations, no assessment
can  be  made  as  to  the  full impact of such requirements on our workforce or
business  if  conditions  should change, and no prediction can be made as to the
effect on us of any expansion or reduction of such obligations.


Economic Conditions

Israel's  economy  has been subject to numerous destabilizing factors, including
a  period  of  rampant inflation in the early to mid-1980s, low foreign exchange
reserves,  fluctuations  in world commodity prices, military conflicts and civil
unrest.  The  Israeli government has, for these and other reasons, intervened in
various  sectors  of  the  economy,  employing,  among  other  means, fiscal and
monetary  policies, import duties, foreign currency restrictions and controls of
wages,   prices  and  foreign  currency  exchange  rates.  The  current  Israeli
government  elected  in  1996  has  expressed its intention to reduce government
involvement  in  the  economy  by various means, including relaxation of foreign
currency  controls  and  certain  budgetary  restraints,  and  privatization  of
certain  government-owned  companies.  The  Israeli  government has periodically
changed its policies in all these areas.

Until   May  1998,  Israel  imposed  restrictions  on  transactions  in  foreign
currency.  These  restrictions affected our operations in various ways, and also
affected  the  right of non-residents of Israel to convert into foreign currency
amounts  they  received  in Israeli currency, such as the proceeds of a judgment
enforced  in Israel. Despite these restrictions, foreign investors who purchased
shares  with  foreign  currency were able to repatriate in foreign currency both
dividends  (after  deduction  of withholding tax) and the proceeds from the sale
of  the  shares. There are currently no Israeli currency control restrictions on
remittances  of  dividends  on the ordinary shares or the proceeds from the sale
of  the  shares;  however,  legislation  remains  in  effect  pursuant  to which
currency controls can be imposed by administrative action at any time.


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Trade Agreements

Israel  is  a member of the United Nations, the International Monetary Fund, the
International  Bank  for  Reconstruction  and  Development and the International
Finance  Corporation.  Israel  is  also  a signatory to the General Agreement on
Tariffs  and  Trade,  which  provides  for reciprocal lowering of trade barriers
among  its  members.  In addition, Israel has been granted preferences under the
Generalized  System  of  Preferences  from  Australia,  Canada  and Japan. These
preferences  allow Israel to export the products covered by such programs either
duty-free or at reduced tariffs.

Israel  has  entered into preferential trade agreements with the European Union,
the  United  States  and  the  European Free Trade Association. In recent years,
Israel  has  established  commercial  and  trade  relations with a number of the
other  nations,  including  Russia,  China  and India, with which Israel had not
previously had such relations.


Assistance from the United States

Israel  receives  significant  amounts  of economic and military assistance from
the  United  States,  averaging  approximately $3 billion annually over the last
several  years. In addition, in 1992, the United States approved the issuance of
up  to  $10  billion of loan guarantees during U.S. fiscal years 1993 to 1998 to
help  Israel  absorb  a  large  influx  of  new  immigrants,  primarily from the
republics  of  the former Soviet Union. Under the loan guarantee program, Israel
may  issue  up  to $2 billion in principal amount of guaranteed loans each year,
subject  to  reduction  in  certain  circumstances.  There  is no assurance that
foreign  aid from the United States will continue at or near amounts received in
the  past.  If  the  grants  for  economic and military assistance or the United
States  loan  guarantees  are  eliminated  or reduced significantly, the Israeli
economy could suffer material adverse consequences.


                                       77
<PAGE>

                                 UNDERWRITING

The  underwriters  named below, for whom U.S. Bancorp Piper Jaffray Inc., Thomas
Weisel  Partners  LLC,  Warburg  Dillon  Read  LLC,  a subsidiary of UBS AG, and
William  Blair  &  Company, L.L.C. are acting as representatives, have agreed to
buy,  subject  to  the terms of the underwriting agreement, the number of shares
listed  opposite  their  names below. The underwriters are committed to purchase
and  pay  for  all  of  the shares if any are purchased, other than those shares
covered by the over-allotment option described below.


                 Underwriters                       Number of Shares
                 ------------                       ------------------
         U.S. Bancorp Piper Jaffray Inc. ........
         Thomas Weisel Partners LLC .............
         Warburg Dillon Read LLC ................
         William Blair & Company, L.L.C. ........
                                                       -----------
                 Total  .........................       3,000,000

The  underwriters have advised us and the selling shareholders that they propose
to  offer the shares to the public at $      per share. The underwriters propose
to  offer  the  shares to certain dealers at the same price less a concession of
not  more  than $      per share. The underwriters may allow and the dealers may
reallow  a  concession  of  not  more  than $      per share on sales to certain
other  brokers  and dealers. After the offering, these figures may be changed by
the representatives.



Thomas  Weisel Partners LLC, one of the representatives of the underwriters, was
organized  and  registered  as  a broker-dealer in December 1998. Since December
1998,  Thomas Weisel Partners LLC has been named as a lead manager or co-manager
on  135  filed  public  offerings  of  equity securities, of which 101 have been
completed.  Since  that  time,  it  also  has  acted as a syndicate member in an
additional  73 public offerings of equity securities. Thomas Weisel Partners LLC
does  not  have  any  material  relationship  with  us  or  any of our officers,
directors  or other controlling persons, except with respect to the underwriting
agreement.


We  have  granted  to the underwriters an option to purchase up to an additional
450,000  ordinary  shares  from us at the same price to the public, and with the
same  underwriting  discount,  as set forth above. The underwriters may exercise
this  option  any  time  during  the  30-day  period  after  the  date  of  this
prospectus,  but  only  to  cover  over-allotments,  if  any.  To the extent the
underwriters  exercise  the  option,  each  underwriter  will  become obligated,
subject  to certain conditions, to purchase approximately the same percentage of
the  additional  shares  as  it was obligated to purchase under the underwriting
agreement.


The  following  table  shows the per share and total underwriting discount to be
paid  by  us and the selling shareholders to the underwriters in connection with
this  offering.  These  amounts  are  shown  assuming  both no exercise and full
exercise of the over-allotment option.

                                               No Exercise     Full Exercise
                                               -------------   ---------------
   Payable by Commtouch
       Per share  ..........................    $                 $
       Total   .............................    $                 $

   Payable by the selling shareholders
       Per share  ..........................    $                 $
       Total   .............................    $                 $



The expenses of the offering,  exclusive of the underwriting  discount,  include
the  Securities  and  Exchange   Commission   registration   fee,  the  National
Association of Securities Dealers filing fee, the Nasdaq National Market listing
fee, printing expenses,  legal fees and expenses,  accounting fees and expenses,
road show  expenses,  Blue Sky fees and expenses,  transfer  agent and registrar
fees and other  miscellaneous  fees. We estimate these fees and expenses will be
an aggregate of  approximately $           . These fees and expenses are payable
entirely by us.



                                       78
<PAGE>




We and the  selling  shareholders  have  agreed to  indemnify  the  underwriters
against certain  liabilities,  including civil  liabilities under the Securities
Act, or to contribute to payments that the  underwriters may be required to make
in respect of those liabilities.

Pursuant   to  the  agreements  granting  registration  rights  to  the  selling
shareholders,  the  Company  has  agreed  to  indemnify the selling shareholders
against  such  liabilities as they may incur as a result of any untrue statement
of  a  material fact in the Registration Statement of which this prospectus is a
part,  or  any  omission herein or therein to state a material fact necessary in
order  to  make  the  statements made, in light of the circumstances under which
they  were made, not misleading. Such indemnification includes liabilities under
the  Securities  Act, the Securities Exchange Act of 1934, state securities laws
and  the  rules thereunder, but excludes liabilities for statements or omissions
that  were  based  on  information  provided  by the selling shareholders, as to
which they have agreed to indemnify the Company and any underwriter.

We  and  the  selling  shareholders  have  agreed to certain restrictions on our
ability  to  sell  additional ordinary shares (other than those shares which are
offered  in  this  prospectus)  for  a  period of 90 days after the date of this
prospectus.  We  have agreed not to directly or indirectly offer for sale, sell,
contract  to  sell,  grant  any  option  for  the sale of, or otherwise issue or
dispose  of,  any  ordinary  shares,  or  any  securities  convertible  into, or
exercisable  or  exchangeable  for,  ordinary  shares, without the prior written
consent  of  U.S.  Bancorp  Piper Jaffray. The agreements provide exceptions for
(1)  sales to underwriters pursuant to the underwriting agreement, (2) our sales
in  connection  with the exercise of options granted and the granting of options
to  purchase  shares under our existing stock option plans and (3) certain other
exceptions.  However, U.S. Bancorp Piper Jaffray may, in its sole discretion and
at  any  time  without  notice,  release  all  or  any portion of the securities
subject  to the lock-up agreements. As of the date of this prospectus, there are
no  agreements between the representatives and any of our shareholders providing
consent  by  the  representatives  to  the sales of ordinary shares prior to the
expiration of the lock-up period.

To  facilitate  the  offering,  the underwriters may engage in transactions that
stabilize,  maintain or otherwise affect the price of the ordinary shares during
and  after  the  offering.  Specifically,  the  underwriters  may  over-allot or
otherwise  create  a short position in the ordinary shares for their own account
by  selling  more  ordinary  shares  than  have  been sold to them by us and the
selling  shareholders.  The  underwriters  may  elect  to  cover  any such short
position  by  purchasing ordinary shares in the open market or by exercising the
over-allotment  option  granted  by  us  to  the  underwriters. In addition, the
underwriters  may  stabilize  or  maintain  the  price of the ordinary shares by
bidding  for  or  purchasing  ordinary  shares in the open market and may impose
penalty  bids.  If  penalty  bids  are  imposed,  selling concessions allowed to
syndicate  members  or  other  broker-dealers  participating in the offering are
reclaimed  if  ordinary  shares  previously  distributed  in  the  offering  are
repurchased,   whether   in   connection   with  stabilization  transactions  or
otherwise.  The effect of these transactions may be to stabilize or maintain the
market  price of the ordinary shares at a level above that which might otherwise
prevail  in the open market. The imposition of a penalty bid may also effect the
price  of  the  ordinary shares to the extent that it discourages resales of the
ordinary  shares.  The  magnitude  or  effect  of  any  stabilization  or  other
transactions  is  uncertain.  These  transactions  may be effected on the Nasdaq
National  Market  or  otherwise  and,  if  commenced, may be discontinued at any
time.

In  connection  with this  offering,  certain  underwriters  (and selling  group
members) may also engage in passive market making  transactions  in the ordinary
shares  on the  Nasdaq  National  Market.  Passive  market  making  consists  of
displaying  bids  on  the  Nasdaq  National  Market  limited  by the  prices  of
independent market makers and effecting  purchases limited by such prices and in
response to order flow.  Rule 103 of Regulation M promulgated  by the Securities
and Exchange  Commission  limits the amount of net  purchases  that each passive
market maker may make and the displayed size of each bid.  Passive market making
may  stabilize  the market  price of the  ordinary  shares at a level above that
which might  otherwise  prevail in the open market  and,  if  commenced,  may be
discontinued at any time.



                                       79
<PAGE>



Each  selling  shareholder and any other persons participating in a distribution
of  securities  will  be  subject  to  applicable  provisions  of the Securities
Exchange  Act  and  the  rules  and  regulations  thereunder, including, without
limitation,  Regulation  M,  which may restrict certain activities of, and limit
the  timing  of  purchases  and sales of securities by, selling shareholders and
other  persons participating in a distribution of securities. Furthermore, under
Regulation  M,  persons  engaged  in a distribution of securities are prohibited
from  simultaneously engaging in market making and certain other activities with
respect  to  such  securities  for  a  specified  period  of  time  prior to the
commencement   of   such   distribution,  subject  to  specified  exceptions  or
exemptions.  All of the foregoing may affect the marketability of the securities
offered hereby.


                                 LEGAL MATTERS


Certain  legal  matters  with respect to United States law are being passed upon
for  Commtouch by McCutchen, Doyle, Brown & Enersen, LLP, Palo Alto, California.
The  validity  of  the  ordinary  shares offered hereby is being passed upon for
Commtouch  by  Naschitz,  Brandes & Co., Tel-Aviv, Israel. Certain legal matters
in  connection  with  this  offering will be passed upon for the underwriters by
Faegre  &  Benson LLP, Minneapolis, Minnesota with respect to United States law,
and  by  Yigal  Arnon & Co., Jerusalem, Israel, with respect to Israeli law. The
partners  of Naschitz, Brandes & Co. and McCutchen, Doyle, Brown & Enersen,  LLP
beneficially  own,  in  the aggregate, less than 1% of the outstanding shares of
the Company.



                                    EXPERTS

The  consolidated financial statements of Commtouch Software Ltd. as of December
31,  1998  and 1999 and for each of the three years in the period ended December
31,  1999  appearing  in  this  prospectus  and Registration Statement have been
audited  by  Kost,  Forer  &  Gabbay,  a  member of Ernst & Young International,
independent  auditors,  as set forth in their report thereon appearing elsewhere
herein  and  are included in reliance upon such report given on the authority of
such firm as experts in auditing and accounting.


                                 ISA EXEMPTION


The Israel Securities  Authority has granted us an exemption from the obligation
to publish this  prospectus in the manner  required  pursuant to the  prevailing
laws of the State of Israel.  Commtouch will make a copy of each report filed in
accordance  with United  States law available for public review at its principal
office in Israel.


                                       80
<PAGE>

                       WHERE YOU CAN FIND MORE INFORMATION

We  have  filed a registration statement on Form F-1 with the SEC for the shares
we  are offering by this prospectus. This prospectus does not include all of the
information  contained  in  the  registration statement. You should refer to the
registration  statement and its exhibits for additional information. Whenever we
make  reference  in this prospectus to any of our contracts, agreements or other
documents,  the  references are not necessarily complete and you should refer to
the  exhibits  attached  to  the registration statement for copies of the actual
contract,  agreement  or  other  document.  We  are  required to file annual and
special reports and other information with the SEC.

You  can  read  our  SEC filings, including the registration statement, over the
Internet  at  the  SEC's  web  site at http://www.sec.gov. You may also read and
copy  any  document  we  file with the SEC at its public reference facilities at
450  Fifth  Street,  NW, Washington, DC 20549, 7 World Trade Center, Suite 1300,
New  York,  New  York  10048 and Citicorp Center, 500 West Madison Street, Suite
1400,  Chicago, Illinois 60661-2511. You may also obtain copies of the documents
at  prescribed  rates  by  writing to the Public Reference Section of the SEC at
450   Fifth   Street,   NW,  Washington,  DC  20549.  Please  call  the  SEC  at
1-800-SEC-0330  for further information on the operation of the public reference
facilities.  Our  SEC  filings  are  also  available at the office of the Nasdaq
National  Market.  For  further  information  on  obtaining copies of our public
filings  at  the  Nasdaq  National  Market,  you  should  call  (212)  656-5060.
Information  contained  on  the  Commtouch  websites does not constitute part of
this prospectus.

We  are  subject  to  certain  of the informational requirements of the Exchange
Act.  We,  as  a  "foreign  private issuer," are exempt from the rules under the
Exchange  Act  prescribing  certain  disclosure  and procedural requirements for
proxy  solicitations  and our officers, directors and principal shareholders are
exempt   from   the  reporting  and  "short-swing"  profit  recovery  provisions
contained  in  Section  16  of the Exchange Act, with respect to their purchases
and  sales  of  ordinary  shares.  In  addition,  we  are  not  required to file
quarterly   reports  or  to  file  annual  and  current  reports  and  financial
statements  with  the  Securities  and  Exchange  Commission as frequently or as
promptly  as  U.S.  companies whose securities are registered under the Exchange
Act.  However,  we  intend  to file with the Securities and Exchange Commission,
within  180  days  after  the  end of each fiscal year, an annual report on Form
20-F  containing  financial  statements  that  will be examined and reported on,
with  an  opinion  expressed  by  an  independent  accounting  firm,  as well as
quarterly  reports  on  Form  6-K containing unaudited financial information for
the  first  three  quarters of each fiscal year, within 60 days after the end of
each such quarter.


                      ENFORCEABILITY OF CIVIL LIABILITIES

We  are  incorporated  in  Israel,  and  most  of  our directors and many of the
executive  officers  and  the  Israeli experts named herein are not residents of
the  United  States  and  substantially  all  of their assets and our assets are
located  outside  the  United  States.  Service  of  process  upon  our non-U.S.
resident  directors  and  executive officers or the Israeli experts named herein
and  enforcement  of judgments obtained in the United States against us, and our
directors  and  executive  officers, or the Israeli experts named herein, may be
difficult  to  obtain  within the United States. Commtouch Software, Inc. is the
U.S.  agent  authorized  to  receive service of process in any action against us
arising  out  of this offering or any related purchase or sale of securities. We
have  not  given  consent  for  this  agent  to  accept  service  of  process in
connection with any other claim.

We  have  been informed by our legal counsel in Israel, Naschitz, Brandes & Co.,
that  there  is  doubt  as  to the enforceability of civil liabilities under the
Securities  Act  or  the  Exchange Act in original actions instituted in Israel.
However,  subject  to  certain  time limitations, an Israeli court may declare a
foreign civil judgment enforceable if it finds that:

    o  the judgment was rendered by a court which was,  according to the laws of
       the state of the court, competent to render the judgment,

    o  the judgment is no longer appealable,




                                       81
<PAGE>


    o  the obligation  imposed by the judgment is  enforceable  according to the
       rules  relating  to the  enforceability  of  judgments  in Israel and the
       substance of the judgment is not contrary to public policy, and


    o  the judgment is executory in the state in which it was given.


Even  if the above conditions are satisfied, an Israeli court will not enforce a
foreign  judgment  if  it was given in a state whose laws do not provide for the
enforcement  of judgments of Israeli courts (subject to exceptional cases) or if
its  enforcement is likely to prejudice the sovereignty or security of the State
of   Israel.  An  Israeli  court  also  will  not  declare  a  foreign  judgment
enforceable  if  (i)  the  judgment was obtained by fraud, (ii) there was no due
process,  (iii)  the judgment was rendered by a court not competent to render it
according  to the laws of private international law in Israel, (iv) the judgment
is  at  variance with another judgment that was given in the same matter between
the  same  parties  and  which is still valid, or (v) at the time the action was
brought  in  the  foreign  court  a suit in the same matter and between the same
parties  was pending before a court or tribunal in Israel. Judgments rendered or
enforced  by  Israeli  courts  will  generally  be  payable in Israeli currency.
Judgment  debtors  bear  the  risk  associated with converting their awards into
foreign currency, including the risk of unfavorable exchange rates.


                                       82
<PAGE>

                            COMMTOUCH SOFTWARE LTD.

                       CONSOLIDATED FINANCIAL STATEMENTS
                            AS OF DECEMBER 31, 1999
                                In U.S. Dollars



                                     INDEX


                                                                  Page
                                                                  ------
Report of Independent Auditors ................................    F-2
Consolidated Balance Sheets ...................................    F-3
Consolidated Statements of Operations  ........................    F-4
Statement of Changes in Shareholders' Equity (Deficit) ........    F-5
Consolidated Statements of Cash Flows .........................    F-6
Notes to Consolidated Financial Statements ....................    F-7




                                      F-1

<PAGE>

                        REPORT OF INDEPENDENT AUDITORS


To the Shareholders of
COMMTOUCH SOFTWARE LTD.


We  have  audited  the  accompanying  consolidated  balance  sheets of Commtouch
Software  Ltd.  and  its  subsidiaries as of December 31, 1998 and 1999, and the
related  consolidated  statements of operations, changes in shareholders' equity
(deficit),  and  cash  flows  for  each  of  the three years in the period ended
December  31,  1999.  These  financial  statements are the responsibility of the
Company's  management.  Our  responsibility  is  to  express an opinion on these
financial statements based on our audits.

We   conducted  our  audits  in  accordance  with  generally  accepted  auditing
standards,  in  the  United  States.  Those  standards  require that we plan and
perform  the  audit  to  obtain reasonable assurance about whether the financial
statements  are free of material misstatement. An audit includes examining, on a
test  basis,  evidence  supporting  the amounts and disclosures in the financial
statements.  An audit also includes assessing the accounting principles used and
significant  estimates  made  by the Company's management, as well as evaluating
the  overall  financial  statement  presentation.  We  believe  that  our audits
provide a reasonable basis for our opinion.

In  our  opinion,  the  consolidated  financial  statements  referred  to above,
present  fairly,  in  all material respects, the consolidated financial position
of  Commtouch  Software  Ltd.  and  its subsidiaries as of December 31, 1998 and
1999,  and  the  consolidated  results of their operations, and their cash flows
for  each  of  the  three  years  in  the  period  ended  December  31, 1999, in
conformity with generally accepted accounting principles in the United States.


Tel-Aviv, Israel
January 31, 2000



                                                    KOST, FORER & GABBAY
                                         A Member of Ernst & Young International


                                      F-2

<PAGE>


                                     COMMTOUCH SOFTWARE LTD.

                                   CONSOLIDATED BALANCE SHEETS
                          (In thousands, except share and per share data)

<TABLE>
<CAPTION>
                                                                               December 31,
                                                                        -------------------------
                                                                          1998            1999
                                                                        ---------       ---------
<S>                                                                     <C>             <C>
                                    Assets
Current Assets:
   Cash and cash equivalents .......................................    $     834       $  65,996
   Marketable securities  ..........................................          --           18,050
   Trade receivables, net ..........................................          133           2,378
   Prepaid marketing expenses ......................................          --            4,508
   Prepaid expenses and other accounts receivable ..................          244           1,648
                                                                        ---------       ---------
      Total current assets .........................................        1,211          92,580
                                                                        ---------       ---------
Long-term Lease Deposits ...........................................          --            1,254
Severance Pay Fund  ................................................          223             354
Property and Equipment, net  .......................................          932           6,148
                                                                        ---------       ---------
                                                                        $   2,366       $ 100,336
                                                                        =========       =========

            Liabilities and Shareholders' Equity (Deficit)

Current Liabilities:
   Short-term bank credit ..........................................    $   1,328       $     --
   Current portion of capital leases  ..............................          112             120
   Accounts payable ................................................          446           1,510
   Employees and payroll accruals ..................................          313           1,032
   Deferred revenue ................................................           74             561
   Accrued expenses and other liabilities ..........................          378           1,304
                                                                        ---------       ---------
      Total current liabilities ....................................        2,651           4,527
                                                                        ---------       ---------
   Long-term portion of capital leases .............................          164              44
   Accrued severance pay  ..........................................          366             453
                                                                        ---------       ---------
                                                                              530             497
                                                                        ---------       ---------
Commitments and Contingent Liabilities (Note 6)                               --              --
Shareholders' Equity (Deficit)
   Convertible Preferred Shares --
    Authorized: 524,250 shares of NIS 1 par value as of
    December 31, 1998; and none as of December 31, 1999; Issued
    and outstanding: 221,265 shares as of December 31, 1998 and
    none as of December 31, 1999 Aggregate liquidation preference
    of approximately $13,200 as of December 31, 1998 and none as of
    December 31, 1999 ..............................................           74             --
   Ordinary Shares --
    Authorized: 11,515,000 and 40,000,000 shares of NIS 0.05 par
    value as of December 31, 1998 and 1999, respectively; Issued and
    outstanding: 1,450,040 and 15,199,344 shares as of December 31,
    1998 and 1999, respectively ....................................           27             213
   Additional paid-in capital ......................................       11,256         133,403
   Deferred compensation  ..........................................         (418)         (5,779)
   Notes receivable from shareholders ..............................          (77)         (1,060)
   Accumulated other comprehensive income ..........................          --               63
   Accumulated deficit .............................................      (11,677)        (31,528)
                                                                        ---------       ---------
      Total shareholders' equity (deficit) .........................         (815)         95,312
                                                                        ---------       ---------
                                                                        $   2,366       $ 100,336
                                                                        =========       =========


     The accompanying notes are an integral part of these consolidated financial statements.
</TABLE>

                                               F-3

<PAGE>

                                     COMMTOUCH SOFTWARE LTD.

                              CONSOLIDATED STATEMENTS OF OPERATIONS
                              (In thousands, except per share data)

<TABLE>
<CAPTION>
                                                                            Year ended
                                                                           December 31,
                                                             ---------------------------------------
                                                               1997          1998           1999
                                                             ---------     ---------      ----------
<S>                                                          <C>           <C>            <C>
Revenues:
   Email services ........................................   $    --       $    389       $    4,251
   Software licenses .....................................        711           --               --
   Software maintenance and services .....................        188           --               --
                                                             ---------     ---------      ----------
      Total revenues  ....................................        899           389            4,251
                                                             ---------     ---------      ----------
Cost of revenues:
   Email services  .......................................        --            569            3,643
   Software licenses  ....................................         21           --               --
   Software maintenance and services .....................        144           --               --
                                                             ---------     ---------      ----------
      Total cost of revenues .............................        165           569            3,643
                                                             ---------     ---------      ----------
Gross profit (loss) ......................................        734          (180)             608
                                                             ---------     ---------      ----------
Operating expenses:
   Research and development, net  ........................      1,108         1,149            2,942
   Sales and marketing   .................................      2,202         2,001            7,722
   General and administrative  ...........................        829           604            4,328
   Amortization of the prepaid marketing expenses ........        --            --             3,263
   Amortization of stock-based employee compensation .....        --             91            3,436
                                                             ---------     ---------      ----------
      Total operating expenses ...........................      4,139         3,845           21,691
                                                             ---------     ---------      ----------
Operating loss  ..........................................     (3,405)       (4,025)         (21,083)
Interest and other income (expenses), net  ...............        (68)         (326)           1,232
                                                             ---------     ---------      ----------
Net loss  ................................................   $ (3,473)     $ (4,351)      $  (19,851)
                                                             =========     =========      ==========
Basic and diluted net loss per share .....................   $  (2.40)     $  (3.00)      $    (2.65)
                                                             =========     =========      ==========
Weighted average number of shares used in computing
 basic and diluted net loss per share ....................      1,450         1,450            7,487
                                                             =========     =========      ==========

     The accompanying notes are an integral part of these consolidated financial statements.
</TABLE>

                                               F-4

<PAGE>

                                     COMMTOUCH SOFTWARE LTD.

                      STATEMENT OF CHANGES IN SHAREHOLDERS' EQUITY (DEFICIT)
                                (In thousands, except share data)

<TABLE>
<CAPTION>
                                                         Convertible
                                                      Preferred shares        Ordinary shares     Additional
                                                    ----------------------- -------------------    paid-in
                                                      Shares      Amount      Shares     Amount    capital
                                                    ---------    -------    -----------  ------   ----------
<S>                                                   <C>        <C>        <C>           <C>      <C>
Balance of January 1, 1997 .......................    160,316    $   56      1,450,040    $  27    $   4,624
 Issuance of shares, net  ........................     23,321         7            --       --         1,625
 Warrants issued for services received and
  bank line of credit  ...........................        --        --             --       --            46
 Net loss  .......................................        --        --             --       --           --
                                                    ---------    -------    -----------  ------   ----------
Balance as of December 31, 1997 ..................    183,637        63      1,450,040       27        6,295
 Issuance of shares, net  ........................     37,628        11            --       --         4,061
 Warrants issued for services received and
  bank line of credit  ...........................        --        --             --       --           391
 Deferred compensation    ........................        --        --             --       --           509
 Amortization of deferred compensation   .........        --        --             --       --           --
 Net loss  .......................................        --        --             --       --           --
                                                    ---------    -------    -----------  ------   ----------
Balance as of December 31, 1998 ..................    221,265        74      1,450,040       27       11,256
 Issuance of shares, net  ........................    134,225        33            --       --        18,417
 Issuance of shares at initial public offering,
  net   ..........................................        --        --       4,794,086       58       65,948
 Conversion of preferred shares to ordinary
  shares   .......................................   (355,490)     (107)     7,109,800      107          --
 Fair value of warrants issued for services
  and bank line of credit ........................        --        --             --       --         8,131
 Deferred compensation  ..........................        --        --             --       --         8,797
 Ordinary shares issued for notes  ...............        --        --         670,180        8        1,029
 Issuance of shares upon exercise of warrants,
  net   ..........................................        --        --       1,105,378       12       19,808
 Issuance of shares upon exercise of options .....        --        --          69,860        1           17
 Amortization of deferred compensation ...........        --        --             --       --           --
 Repayment of notes receivable  ..................        --        --             --       --           --
 Other comprehensive income--unrealized
  holding gains on marketable securities .........        --        --             --       --           --
 Net loss  .......................................        --        --             --       --           --
 Total comprehensive loss ........................        --        --             --       --           --
                                                    ---------    -------    -----------  ------   ----------
Balance as of December 31, 1999 ..................        --     $  --      15,199,344    $ 213    $ 133,403
                                                    =========    =======    ===========  ======   ==========



<CAPTION>
                                                    Stock-based       Notes        Accumulated
                                                      employee      receivable        other
                                                      deferred         from       comprehensive   Accumulated
                                                    compensation   shareholders      income        deficit       Total
                                                   -------------- -------------- --------------- ------------ ------------
<S>                                                   <C>            <C>               <C>        <C>          <C>
Balance of January 1, 1997 ........................   $     --       $     (77)        $--        $  (3,853)   $     777
 Issuance of shares, net  .........................         --             --           --              --         1,632
 Warrants issued for services received and
  bank line of credit  ............................         --             --           --              --            46
 Net loss  ........................................         --             --           --           (3,473)      (3,473)
                                                      ---------      ---------         -----      ----------   ----------
Balance as of December 31, 1997 ...................         --             (77)         --           (7,326)      (1,018)
 Issuance of shares, net  .........................         --             --           --              --         4,072
 Warrants issued for services received and
  bank line of credit  ............................         --             --           --              --           391
 Deferred compensation    .........................        (509)           --           --              --           --
 Amortization of deferred compensation   ..........          91            --           --              --            91
 Net loss  ........................................         --             --           --           (4,351)      (4,351)
                                                      ---------      ---------         -----      ----------   ----------
Balance as of December 31, 1998 ...................        (418)           (77)         --          (11,677)        (815)
 Issuance of shares, net  .........................         --             --           --              --        18,450
 Issuance of shares at initial public offering,
  net   ...........................................         --             --           --              --        66,006
 Conversion of preferred shares to ordinary
  shares   ........................................         --             --           --              --           --
 Fair value of warrants issued for services
  and bank line of credit .........................         --             --           --              --         8,131
 Deferred compensation  ...........................      (8,797)           --           --              --           --
 Ordinary shares issued for notes  ................         --          (1,037)         --              --           --
 Issuance of shares upon exercise of warrants,
  net   ...........................................         --             --           --              --        19,820
 Issuance of shares upon exercise of options .....          --             --           --              --            18
 Amortization of deferred compensation ............       3,436            --           --              --         3,436
 Repayment of notes receivable  ...................         --              54          --              --            54
 Other comprehensive income--unrealized
  holding gains on marketable securities ..........         --             --            63             --            63
 Net loss  ........................................         --             --           --          (19,851)     (19,851)
                                                                                                               ----------
 Total comprehensive loss .........................         --             --           --              --       (19,788)
                                                                                                                - - - - -

                                                      ---------      ---------         -----      ----------   ----------
Balance as of December 31, 1999 ...................   $  (5,779)     $  (1,060)        $ 63       $ (31,528)   $  95,312
                                                      =========      =========         =====      ==========   ==========


               The accompanying notes are an integral part of these consolidated financial statements.
</TABLE>
                                                             F-5

<PAGE>

                                            COMMTOUCH SOFTWARE LTD.

                                     CONSOLIDATED STATEMENTS OF CASH FLOWS
                                                 (In thousands)


<TABLE>
<CAPTION>
                                                                                     Year Ended
                                                                                    December 31,
                                                                    -------------------------------------------
                                                                      1997            1998             1999
                                                                    ---------       ---------        ----------
<S>                                                                 <C>             <C>              <C>
Cash flows from operating activities:
   Net loss  ...................................................    $  (3,473)      $  (4,351)       $  (19,851)
   Adjustments to reconcile net loss to net cash used in
    operating activities:
      Depreciation and amortization  ...........................          206             236             1,709
      Amortization of stock-based employee deferred
       compensation and warrants issued for service
       received and bank line of credit ........................           46             482             3,796
      Decrease (increase) in trade receivables, net ............          738             (84)           (2,245)
      Amortization of prepaid marketing expenses ...............          --              --              3,263
      Decrease (increase) in prepaid expenses and other
       accounts receivable  ....................................           14            (164)           (1,028)
      Increase in account payable ..............................           99              91             1,064
      Increase (decrease) in employee and payroll accruals
       and other liabilities ...................................         (147)            128             1,645
      Increase in deferred revenue .............................          --               74               487
      Increase (decrease) in accrued severance pay, net ........          (54)             19               (44)
      Other  ...................................................          --              --                (12)
                                                                    ---------       ---------        ----------
Net cash used in operating activities ..........................       (2,571)         (3,569)          (11,216)
                                                                    ---------       ---------        ----------
Cash flows from investing activities:
Purchase of available-for-sale marketable
 securities  ...................................................          --              --            (17,987)
   Long-term deposits ..........................................          --              --             (1,254)
   Advance to related party ....................................          --              --               (364)
   Proceeds from sale of property and equipment  ...............          --              --                 13
   Purchase of property and equipment ..........................          (93)           (442)           (6,938)
                                                                    ---------       ---------        ----------
Net cash used in investing activities ..........................          (93)           (442)          (26,530)
                                                                    ---------       ---------        ----------
Cash flows from financing activities:
   Short-term bank credit, net .................................          733             595            (1,328)
   Repayment of note receivable by shareholder .................          --              --                 54
   Principal payment of capital lease ..........................          (67)           (146)             (112)
   Proceeds from issuance of shares, net .......................        1,632           4,072           104,294
                                                                    ---------       ---------        ----------
Net cash provided by financing activities  .....................        2,298           4,521           102,908
                                                                    ---------       ---------        ----------
Increase (decrease) in cash and cash equivalents ...............         (366)            510            65,162
Cash and cash equivalents at the beginning of the year .........          690             324               834
                                                                    ---------       ---------        ----------
Cash and cash equivalents at the end of the year ...............    $     324       $     834        $   65,996
                                                                    =========       =========        ==========
Supplemental disclosure of cash flows activity:
   Cash paid during the year:
   Interest  ...................................................    $      48       $      97        $      117
                                                                    =========       =========        ==========
Supplemental disclosure of non-cash activity:
   Capital lease obligations ...................................    $     --        $     328        $      --
                                                                    =========       =========        ==========
   Ordinary shares issued for notes receivable from
    shareholders ...............................................    $     --        $     --         $    1,037
                                                                    =========       =========        ==========
   Issuance of Warrants for Prepaid Marketing Expenses .........    $     --        $     --         $    7,771
                                                                    =========       =========        ==========


            The accompanying notes are an integral part of these consolidated financial statements.
</TABLE>

                                                      F-6

<PAGE>

                            COMMTOUCH SOFTWARE LTD.

                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS


NOTE 1: GENERAL


Commtouch  Software  Ltd.  (the "Company" or "Commtouch") was incorporated under
the  laws  of  Israel  in  1991.  The  Company,  together with its United States
subsidiary,  Commtouch  Software  Inc.,  ("CSI")  a California corporation, is a
provider  of  Web-based  email  and communications solutions to customers who in
turn  offer those solutions to their end-users. From inception through 1997, the
Company  generated  revenues  primarily  from  sale  maintenance  and service of
stand-alone  email  client  software  products  for  both mainframe and personal
computers.  From 1998, the Company began to generate revenues by providing email
services  to  its  customers.  Email service revenues are derived from contracts
that  provide  for  either  a share of advertising revenues subject to a minimum
annual  revenue  commitment  or a monthly per-email box fee, and fees for direct
marketing   and   communications   services.   In  November  1999,  the  Company
established  a  wholly-owned subsidiary in England, Commtouch Software (UK) Ltd.
(the "UK company"). The UK company had not yet commenced operations.


During  1999,  approximately  11%  of  the  revenues  were derived from a single
customer.  During  1998,  approximately  54%  of  the revenues were derived from
another single customer.


NOTE 2: SIGNIFICANT ACCOUNTING POLICIES

The  consolidated  financial  statements  have  been prepared in accordance with
generally accepted accounting principles in the United States.


a. Use of Estimates:

The   preparation  of  consolidated  financial  statements  in  conformity  with
generally  accepted  accounting principles requires management to make estimates
and  assumptions  that affect the amounts reported in the consolidated financial
statements  and  accompanying  notes.  Actual  results  could  differ from those
estimates.


b. Financial Statements Denominated in United States Dollars:

Most  of  the  Company's  revenues  are denominated in United States dollars. In
addition,  a substantial portion of the Company's costs are incurred in dollars.
Since  the  dollar  is the primary currency in the economic environment in which
the  Company  and  its  subsidiaries  operate,  the  dollar  is their functional
currency,  and,  accordingly,  monetary  accounts maintained in currencies other
than  the  dollar  are remeasured using the foreign exchange rate at the balance
sheet  date.  Operational  accounts  and non-monetary balance sheet accounts are
measured  and recorded at the rate in effect at the date of the transaction. The
effects of foreign currency remeasurement are reported in current operations.


c. Principles of Consolidation:

The  consolidated  financial  statements include the accounts of the Company and
its   wholly-owned  subsidiaries.  All  significant  intercompany  balances  and
transactions have been eliminated in consolidation.


d. Cash, Cash Equivalents and Marketable Securities:

The  Company  considers  all highly liquid investments originally purchased with
maturities of three months or less to be cash equivalents.

The  Company accounts for its marketable securities in accordance with Statement
of  Financial  Accounting  Standards  ("SFAS")  No. 115, "Accounting for Certain
Investments  in  Debt and Equity Securities". All debt securities are designated
as available-for-sale. Available-for-sale securities are


                                      F-7

<PAGE>

                            COMMTOUCH SOFTWARE LTD.

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS --(Continued)


carried  at  fair value, which is determined based upon the quoted market prices
of  the  securities,  with unrealized gains and losses reported in shareholders'
equity, as items of other comprehensive income.


e. Prepaid Marketing Expenses:

The  Company recorded prepaid marketing expenses, representing the fair value of
warrants  which  have  been  issued  to Go2Net Inc. and Microsoft Corporation in
connection  with  commercial  agreements  into  which the Company entered during
1999.

The  prepaid  marketing  expenses  are  amortized using the straight-line method
over the minimum term of the agreements (twelve months).

In  1999, operating expenses included amortization of prepaid marketing expenses
amounting to $3.3 million.

f. Property and Equipment:

Property  and  equipment  are  stated at cost and depreciated using the straight
line  method  over  the estimated useful lives of the assets ranging from two to
sixteen  years. Leasehold improvements are amortized by the straight-line method
over the lease term.

The  Company  periodically assesses the recoverability of the carrying amount of
property  and equipment and provides for any possible impairment loss based upon
the  difference between the carrying amount and fair value of such assets. As of
December 31, 1999, no impairment losses have been identified.

g. Research and Development:

Research  and  development  costs  are charged to the statement of operations as
incurred.  Statement  of Financial Accounting Standards Board No. 86 "Accounting
for  the  Costs  of Computer Software to be Sold, Leased or Otherwise Marketed,"
requires  capitalization of certain software development costs subsequent to the
establishment of technological feasibility.

Based  on  the  Company's product development process, technological feasibility
is  established  upon  completion of a working model. The Company does not incur
any  costs  between  the  completion of the working model and the point at which
the  product is ready for general release. Therefore, through December 31, 1999,
the  Company  has  charged  all  software  development  costs  to  research  and
development expense in the period incurred.

h. Revenue Recognition:

Since  1998, the Company has derived its revenues from providing Web-based email
services.  Revenues  from  contracts  that  are not dependent upon the number of
mailboxes  and provide non-refundable fixed payments are recognized ratably over
the  contract  term.  Revenues  from contracts specifying a contractual rate per
mailbox   per  month  are  recognized  monthly  for  mailboxes  covered  by  the
respective  contracts.  Revenues  from contracts based on a share of advertising
revenues  earned  by  business  partners  are  recognized when such revenues are
earned.  Revenues  from  set  up  and  installation  fees  are  recognized  upon
installation.  Amounts  billed  or  received  in advance of service delivery are
recorded as deferred revenue.

Revenues   from   software  products  sales  that  occurred  through  1997  were
recognized   upon   delivery   of  the  software  master  for  reproduction  and
distribution   provided   no   significant   vendor  obligations  remained,  and
collection  of  the related receivable was probable in accordance with Statement
of Position 91-1.


                                      F-8

<PAGE>

                            COMMTOUCH SOFTWARE LTD.

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS --(Continued)

i. Royalty-Bearing Grants:

Royalty-bearing  grants  from  the  Government  of  Israel  for funding approved
research  and  development  projects  are  recognized at the time the Company is
entitled  to  such  grants,  when  expenses  under  such  approved  projects are
incurred.  Development  grants  amounted  to  $288  in 1997 and none in 1998 and
1999.

j. Concentrations of Credit Risk:

Financial  instruments that potentially subject the Company to concentrations of
credit  risk  consist  principally  of  trade  receivables, cash equivalents and
marketable  securities. The majority of the Company's cash, cash equivalents and
marketable  securities  are invested in dollar and dollar linked investments and
are  deposited  in  major  banks  in Israel and in the United States. Management
believes  that  the  financial  institutions that hold the Company's investments
are  financially sound and, accordingly, minimal credit risk exists with respect
to these investments.


The  Company's  trade  receivables  are derived from transactions with companies
located  primarily  in  North  America,  Europe  and  the  Far East. The Company
maintains  an  allowance  for doubtful trade receivables based upon the expected
collectibility  of  trade  receivables.  The allowance for doubtful accounts was
none  and  $405,000  at  December  31, 1998 and 1999, respectively. In 1997, the
Company  wrote off approximately $170,000 of trade receivables that were derived
from revenues recognized in 1996.


k. Accounting for Stock-Based Compensation:

The  Company  has  elected  to follow Accounting Principles Board Opinion No. 25
("APB  25"),  "Accounting  for Stock Issued to Employees", in accounting for its
employee  stock  option  plans.  Under  APB  25,  when the exercise price of the
Company's  stock  options  equals or is above the market value of the underlying
stock  on  the  date  of  grant,  no  compensation  expense  is  recognized. The
pro-forma  information with respect to the fair value of the options is provided
in accordance with the provisions of Statement No. 123.

In  accounting  for  warrants granted to those other than employees, the Company
applied   the   provisions   of   SFAS  No.  123,  "Accounting  for  Stock-Based
Compensation"  and  Emerging  Issues  Task  Force ("EITF") 96-18 "Accounting for
Equity  Instruments  That  Are  Issued  to  other than Employees Acquiring or in
Conjunction  with  Selling,  Goods  or  Services."  .  The  fair  value of these
warrants   was   estimated   at   the   grant   date,  using  the  Black-Scholes
option-pricing model.

l. Basic and Diluted Net Loss Per Share:

Basic  and  diluted net loss per share are presented in accordance with SFAS No.
128, "Earnings per Share" ("SFAS 128"), for all periods presented.

Basic  net loss per share has been computed using the weighted-average number of
ordinary  shares  outstanding  during  the period. Diluted net loss per share is
computed  based  on  the  weighted average number of ordinary shares outstanding
during  each  year,  plus  the  weighted  average  number  of dilutive potential
ordinary shares considered outstanding during the year.

All  convertible  preferred shares, outstanding stock options, and warrants have
been  excluded  from  the  calculation of the diluted loss per share because all
such  securities are antidilutive for all periods presented. The total number of
shares  related  to  the  outstanding  options  and  warrants  excluded from the
calculations  of  diluted  net  loss  per  share  were  911,680,  1,236,100  and
2,497,470 for 1997, 1998 and 1999, respectively.


                                      F-9

<PAGE>

                            COMMTOUCH SOFTWARE LTD.

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS --(Continued)

m. Severance Pay:

The  Company's  liability  for  severance  pay is calculated pursuant to Israeli
severance  pay  law  based on the most recent salary of the employees multiplied
by  the  number  of  years of employment as of the balance sheet date. Employees
are  entitled  to  one  month's  salary for each year of employment or a portion
thereof.  The  Company's liability for all of its employees is fully provided by
monthly  deposits with severance pay funds insurance policies and by an accrual.


The  deposited  funds  include profits accumulated up to the balance sheet date.
The  deposited  funds  may  be  withdrawn  only  upon  the  fulfillment  of  the
obligation  pursuant to Israeli severance pay law or labor agreements. The value
of  the  deposited funds is based on the cash surrender value of these policies,
and includes immaterial profits.

Severance  expenses  for 1997, 1998 and 1999 were approximately $73,000, $62,000
and $129,000, respectively.


n. Fair Value of Financial Instruments:

The  carrying amounts of cash and cash equivalents, marketable securities, trade
receivables  and  accounts  payable,  approximate  their  fair values due to the
short-term maturities of these instruments.

The fair value of long term  deposits  is  estimated  based on current  interest
rates available to the Company for debt instruments with similar terms,  degrees
of risk and  remaining  maturities.  The  carrying  value  of these  obligations
approximates their respective fair values as of December 31, 1999.


o. Future Adoption of New Accounting Standards:

In   June  1998,  the  Financial  Accounting  Standards  Board  ("FASB")  issued
Statement   No.   133   "Accounting   for  Derivative  Instruments  and  Hedging
Activities"   ("SFAS  No.  133").  This  statement  establishes  accounting  and
reporting  standards  requiring  that  every  derivative  instrument  (including
certain  derivative  instruments embedded in other contracts) be recorded in the
balance  sheet  as  either an asset or liability measured at its fair value. The
statement  also  requires  that  changes  in  the  derivative's  fair  value  be
recognized  currently  in earnings unless specific hedge accounting criteria are
met.  Special  accounting  for qualifying hedges allows a derivative's gains and
losses  to  offset  related  results on the hedged item in the income statement,
and  requires  that  a company must formally document, designate, and assess the
effectiveness of transactions that receive hedge accounting.

The  FASB  has  issued  SFAS No. 137, "Accounting for Derivative Instruments and
Hedging  Activities--Deferral  of the Effective Date of FASB Statement No. 133".
The  Statement  defers for one year the effective date of SFAS No. 133. The rule
will  apply  to all fiscal quarters of all fiscal years beginning after June 15,
2000.  The  Company  does  not  expect  the  impact of this new statement on the
consolidated financial statements to be material.

NOTE 3: MARKETABLE SECURITIES

                                                       December 31,
                                                           1999
                                                       --------------
Marketable securities are as follows (in thousands):
Commercial papers  .................................      $  2,230
Government securities ..............................         9,918
Corporate debt securities ..........................         5,902
                                                          ---------
                                                          $ 18,050
                                                          =========

During  1999,  the  unrealized gross holding gains on marketable securities were
$80,000, while the unrealized gross holding losses were $17,000.


                                      F-10

<PAGE>

                            COMMTOUCH SOFTWARE LTD.

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS --(Continued)

NOTE 4: PROPERTY AND EQUIPMENT

                                                          December 31,
                                                      --------------------
                                                       1998       1999
                                                      --------   ---------
Property and equipment are as follows (in thousands):
Computers and peripheral equipment ..................  $1,260     $ 7,704
Office furniture and equipment ......................      90         232
Motor vehicles ......................................     118         135
Leasehold improvements ..............................     137         454
                                                       -------    --------
                                                        1,605       8,525
Less accumulated depreciation .......................     673       2,377
                                                       -------    --------
                                                       $  932     $ 6,148
                                                       =======    ========

Computers  and  peripheral  equipment  under  various  capital  lease agreements
amounted  to  approximately  $328,000  and  $328,000 as of December 31, 1998 and
1999,   respectively,   and   their   accumulated   depreciation   amounted   to
approximately   $38,000   and  $185,000  as  of  December  31,  1998  and  1999,
respectively.

Depreciation   expenses   amounted   to  approximately  $145,000,  $236,000  and
$1,706,000 for 1997, 1998 and 1999, respectively.


NOTE 5: CAPITAL LEASES

During  1998,  CSI  leased  computers  and  peripheral  equipment  under various
capital  lease  agreements,  with  an  option to purchase the equipment upon the
expiration  of  the  initial lease term, for the fair market value prevailing at
that  time,  not to exceed 10% of the original cost of the equipment. The annual
interest rate of such capital leases ranges between 19.5% and 23%.


NOTE 6: COMMITMENTS AND CONTINGENT LIABILITIES

Operating Leases:

The  facilities  of  the  Company  and  CSI  are  leased  under  operating lease
agreements  expiring  through  2007.  Future  minimum lease payments under these
leases are as follows (in thousands):

                  2000 ............................. $  2,251
                  2001 .............................    2,803
                  2002 .............................    2,889
                  2003 .............................    2,782
                  2004 .............................    2,770
                  Thereafter .......................    6,168
                                                     --------
                                                     $ 19,663
                                                     ========

Rent  expenses  for  1997, 1998 and 1999 were approximately $55,000, $56,000 and
$578,000,  respectively.  In  connection  with  the lease agreement on an office
building,  CSI  deposited $1.3 million in long term lease deposits of which $1.1
million was held as collateral.


Royalties:

The  Company is required to pay royalties on grants received from the Government
of  Israel for research and development projects and marketing activities at the
rate  of  3%--5% of total revenues, up to an amount equal to 100% to 150% of the
original amount received linked to the dollar.


                                      F-11

<PAGE>

                            COMMTOUCH SOFTWARE LTD.

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS --(Continued)

As  of  December  31, 1999, the Company had an outstanding contingent obligation
to pay royalties in the aggregate amount of $275,000.


NOTE 7: INCOME TAXES

Israeli Income Tax

The  Company's  production  facilities  in  Israel  have  been granted "Approved
Enterprise"  status  for  two  separate investment programs approved in 1992 and
1996  by  the  Israeli  Investment  Center  under  the  Law for Encouragement of
Capital Investments, 1959 ("the Law").

The  Company's first approved program commenced operation in 1995. The Company's
second  program  received a letter of approval in April 1996. An application for
an enlargement was submitted in February 2000 and has not yet been approved.

In  February  2000  the  Company  submitted an application for another expansion
(third program).

Undistributed  Israeli  income  derived  from  each of its "Approved Enterprise"
programs  entitle  the  Company  to  a  tax-exemption  for a period of two years
commencing  with  the first year it will earn taxable income (not commenced yet)
and  to a reduced tax rate of 10%--25% for an additional period of five to eight
years  (depending  on the level of foreign investment in the Company). These tax
benefits  cannot  continue  beyond the earlier of twelve years from commencement
of  operations,  or  fourteen  years  from  receipt of approval. Thereafter, the
Company's  income  will be subject to the regular income tax rate of 36%. Income
that  was  not  derived  from  "Approved  Enterprise"  in  is  period of benefit
mentioned above is taxed at the regular rate of 36%.


Distribution  of  cash  dividends  from  income  that  was tax exempt due to the
"approved  enterprise"  status  are  subject  to  a tax of 10%-25%. In addition,
these dividends will be subject to a 15% withholding tax.

The  tax  exempt  income  attributable  to  the  "Approved  Enterprise"  can  be
distributed  to  shareholders  without subjecting the Company to taxes only upon
the  complete  liquidation  of the Company.

The Company's Board of Directors has determined that such tax exempt income will
not be  distributed as dividends.  The Company is an "industrial  company" under
the  Law for the  Encouragement  of  Industry  (Taxation),  1969  and as such is
entitled to certain tax benefits,  mainly  accelerated rates of depreciation and
the right to claim public issuance expenses.


As  of  December  31, 1999, Israeli net operating loss carryforwards amounted to
approximately  $22.5  million.  Such  net  operating loss may be carried forward
indefinitely and offset against future taxable income.

U.S. Income Tax:

CSI is taxed based upon tax laws in the U.S.

As  of December 31, 1999, CSI had a U.S. federal net operating loss carryforward
of  approximately  $14.2  million.  The  net  operating  loss expires in various
amounts between the years 2008 and 2020.

Utilization  of  U.S.  net  operating  losses  may be subject to the substantial
annual  limitation  due  to the "change in ownership" provisions of the Internal
Revenue  Code  of  1986  and similar state provisions. The annual limitation may
result in the expiration of net operating losses before utilization.


                                      F-12

<PAGE>

                            COMMTOUCH SOFTWARE LTD.

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS --(Continued)

Deferred Taxes:

The  Company  expects that during the period in which its Israeli tax losses are
utilized  its  Israeli  income  would  be  substantially tax exempt. Accordingly
there  will be no tax benefit available from such losses and no Israeli deferred
income taxes have been included in these financial statements.

Deferred  income  taxes  reflect  the  net  tax effects of temporary differences
between  the  carrying amounts of assets and liabilities for financial reporting
purposes  and  the  amounts used for income tax purposes. Significant components
of the Company's deferred tax liabilities and assets are as follows:


                                                             December 31,
                                                        ----------------------
                                                          1998          1999
                                                        --------      --------
Deferred tax assets are as follows (in thousands):
U.S. operating loss carryforwards ..................... $ 1,656       $  4,970
Reserves and allowances not currently deductible ......      15             57
                                                        -------       --------
Net deferred tax asset before valuation allowance .....   1,671          5,027
Valuation allowance ...................................  (1,671)        (5,027)
                                                        -------       --------
Net deferred tax asset ................................ $    --       $     --
                                                        =======       ========


For  the  year  ended  December  31,  1999  the valuation allowance increased by
approximately  $3.4 million. No utilization of CSI's tax losses carryforwards is
expected  in the foreseeable future, because of its history of operating losses.
In  1997, 1998 and 1999, the Company provided a 100% valuation allowance against
the  deferred  tax  assets  in  respect of these tax loss carryforward and other
temporary  differences  because  of  the uncertainty of realizing these deferred
tax assets.

Pretax loss:

Pretax losses are as follows (in thousands):

                                           1997          1998           1999
                                          -------       -------       --------
Israel .................................  $ 1,602       $ 2,497       $ 11,259
U.S. ...................................    1,871         1,854          8,592
                                          -------       -------       --------
                                          $ 3,473       $ 4,351       $ 19,851
                                          =======       =======       ========

NOTE 8: SHAREHOLDERS' EQUITY

The ordinary shares of the Company are traded on the NASDAQ National Market.


a. Capital Shares:

In  April  1999,  the Company's Board of Directors approved: a 20 for 1 split of
ordinary  shares,  a  change  in  the  conversion  ratio  of preferred shares to
ordinary  shares to 1 to 20 and an increase to the authorized ordinary shares to
40,000,000  shares  of NIS 0.05 par value. The consolidated financial statements
have been retroactively adjusted to reflect such changes.


In  July  1999,  the Company completed an Initial Public Offering ("IPO") of its
ordinary  shares.  The  Company  sold  3,450,000 shares to the public at $16 per
share.  Concurrent  with  the  closing  of  the  IPO, the Company sold 1,344,086
shares  at  $14.88  per share to Go2Net, Inc. In addition, the holders of Series
A,  Series  B,  Series  C  and  Series  D  convertible preferred shares received
ordinary  shares  pursuant to an automatic conversion, resulting in the issuance
of  7,109,800  ordinary  shares  in  exchange  for  all  outstanding convertible
preferred shares.



                                      F-13

<PAGE>

                            COMMTOUCH SOFTWARE LTD.

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS --(Continued)

b. Warrants Issued:

Warrants  to  Investors. In  1996,  the  Company  issued  to  certain  Series  B
investors  warrants  to purchase 13,873 Series B Convertible Preferred shares at
an  exercise  price  of  $44.04. These warrants were exercised concurrently with
the closing of the IPO.


Warrants  Issued for Services Received and Financing Transactions. Through 1999,
the  Company  granted  warrants  in connection with a bank line of credit, loans
and  consulting  services  received. At December 31, 1999, one warrant for 4,860
ordinary  shares with an exercise price of $3.61 per share remained outstanding.
This warrant was net exercised into 4,461 shares in January 2000.

The  Company  recorded  $17,000,  $264,000, and $360,000 as interest expenses in
1997,  1998  and  1999, respectively. The Company recorded $29,000, $127,000 and
none  in 1997, 1998 and 1999, respectively, as compensation expense and included
these amounts in operating expenses.


Warrants  Issued  to  Strategic  Partners  and  Customers. Concurrent  with  the
closing  of  the  IPO,  the  Company  entered  into a customary commercial email
service  agreement  with  Go2Net,  a  related  party.  Under this agreement, the
Company  provides  email  services  to  the  end users of Go2Net's various email
properties.  In  connection  with  this  agreement, the Company issued a warrant
expiring  in  July  2004  to  purchase  1,136,000 Ordinary Shares at an exercise
price  of  $12.80  per share. As of December 31, 1999, this warrant had not been
exercised.  At  the  grant date, the fair value of this warrant was estimated as
$5.9  million and is being amortized to operating expenses over the minimum term
of the contract (twelve months).


In  October  1999,  the Company entered into a customary email service agreement
with  Microsoft  Corporation.  Under  this agreement, the Company delivers email
services  to Microsoft Web sites. In connection with this agreement, the Company
issued  a  warrant  to  purchase 707,965 ordinary shares at an exercise price of
$28.25  per  share. The warrant was exercised on December 29, 1999. At the grant
date,  the fair value of this warrant was estimated at $1.9 million and is being
amortized  to  operating  expenses over the minimum term of the contract (twelve
months).



c. Issuance of Ordinary Shares Against Promissory Notes:

During 1999,  several  employees and officers early  exercised  670,180  options
granted to them by Commtouch. In consideration for the ordinary shares purchased
pursuant to the early exercise of the options, they provided Commtouch with full
recourse promissory notes in the original principal amount of approximately $1.0
million.  The promissory notes bear interest at 4.83%, with interest payment due
at  the  end of  each  calendar  year,  with  the  principal  due on the  fourth
anniversary  of the date of the  promissory  notes.  The  shares  purchased  are
subject to a right of repurchase in favor of Commtouch according to the original
vesting schedule of the options exercised,  generally four years. As of December
31, 1999, approximately 279,584 shares are subject to this right of repurchase.



d. Employee Stock Purchase Plan:

Commtouch  reserved  a  total  of  150,000  shares  for issuance under the plan.
Eligible  employees  may  purchase  ordinary  shares  at 85% of the lower of the
market  value  of  the  Company's  Ordinary  shares  on  the  first  day  of the
applicable offering period or the last day of the applicable purchase period.


e. Stock Options:

The  Company  has reserved 5,000,000 ordinary shares for issuance under employee
stock  option  plans  and  agreements.  Options  granted  under  such  plans and
agreements  expire generally after 10 years from the date of grant and terminate
upon  termination  of  the  optionee's employment or other relationship with the
Company.  The  options generally vest ratably over a 4-year period. The exercise
price  of  the  options  granted under the individual agreements may not be less
than the nominal value


                                      F-14

<PAGE>

                            COMMTOUCH SOFTWARE LTD.

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS --(Continued)

of  the  shares  into  which  such options are exercisable or in the case of the
subsidiary's  plan  it  may not be less than fair market value. Any options that
are  canceled  or  not  exercised within the options period become available for
future grant.


In  1996,  the  Company  adopted  the  1996  CSI  Stock Option Plan for granting
options  to  its  U.S. employees to purchase ordinary shares of the Company. The
Company  issued  options  to  purchase  ordinary shares to its Israeli employees
pursuant  to  individual  agreements.  In  1999  the  Company  approved the 1999
Section 3(i) Share Option Plan for its Israeli employees.


A  summary of the company's share option activity under the plans is as follows:


<TABLE>
<CAPTION>
                                                                                               Weighted Average
                                                        Number of Shares                        Exercise Price
                                             ----------------------------------------   -------------------------------
                                               1997          1998          1999         1997        1998       1999
                                             ---------     --------     ----------      --------    -------    --------
<S>                                         <C>            <C>          <C>             <C>         <C>        <C>
Outstanding at beginning of period   ......    457,520     607,040        849,520       $  0.99     $ 1.10     $  1.20
Granted   .................................    213,820     251,900      1,342,670          1.45       1.45       10.13
 Exercised   ..............................        --          --        (740,040)          --         --         1.42
 Canceled    ..............................    (64,300)     (9,420)       (69,040)         1.45       1.45        4.49
                                             ---------     --------     ----------      --------    -------    --------
Outstanding at end of period   ............    607,040     849,520      1,383,110          1.10       1.20        9.62
                                             =========     ========     ==========      ========    =======    ========
Exercisable at end of period   ............    165,480     375,580        381,315          1.45       1.45        3.50
                                             =========     ========     ==========      ========    =======    ========
Deemed fair value of options granted
 at an exercise price of:
 -- Less than fair market value at
   date of grant   ........................  $     --      $  2.46      $    3.65
                                             =========     ========     ==========
 -- Equals to fair market value at
   date of grant   ........................  $    0.61     $   --       $   15.75
                                             =========     ========     ==========
 -- Exceeds fair market value at
   date of grant   ........................  $     --      $   --       $     --
                                             =========     ========     ==========
</TABLE>


The  options  outstanding  as  of  December  31,  1999, have been separated into
ranges of exercise price, as follows:




<TABLE>
<CAPTION>
                        Options              Weighted                                   Options          Weighted Average
                   Outstanding as of         Average              Weighted         Exercisable as of         Price of
                     December 31,           Remaining         Average Exercise       December 31,          Exercisable
Exercise Price           1999            Contractual Life          Price                 1999                Options
- ----------------   -------------------   ------------------   ------------------   -------------------   ------------------
<S>                <C>                   <C>                  <C>                  <C>                   <C>
  $ 0.55-$ 2.50           660,760              8.23                 $ 1.52               320,282               $ 1.42
  $11.00-$15.75           522,500              9.56                 $14.13                61,033               $14.43
  $16.06-$48.56           199,850              9.84                 $24.65                   --                   --
                   -------------------   ------------------   ------------------   -------------------   ------------------
  $ 0.55-$48.56         1,383,110              8.96                 $ 9.62               381,315               $ 3.50
                   ===================   ==================   ==================   ===================   ==================
</TABLE>


Under  SFAS  123, pro forma information regarding net income (loss) and earnings
(loss)  per  share  is  required  and  has been determined as if the Company had
accounted  for  its  employee  stock options under the fair value method of that
Statement.  The  fair value for these options was estimated at the date of grant
using  a  Black-Scholes Option Pricing Model with the following weighted-average
assumptions  for  1997,  1998  and 1999: risk-free interest rates of 6% for 1997
and  1998  and  5.5%  for 1999, dividend yields of 0%, volatility factors of the
expected  market  price  of  the Company's ordinary shares of 0.5 for 1997, 1998
and  0.5  -  0.56  for 1999 and an expected life of the option of 6 months after
the option is vested.


                                      F-15

<PAGE>

                            COMMTOUCH SOFTWARE LTD.

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS --(Continued)

The  Black-Scholes  option  valuation  model was developed for use in estimating
the  fair  value  of  traded  options  that have no vesting restrictions and are
fully  transferable.  In  addition, option valuation models require the input of
highly  subjective  assumptions,  including the expected stock price volatility.
Because  the Company's employee stock options have characteristics significantly
different  from  those  of traded options, and because changes in the subjective
input   assumptions   can   materially   affect  the  fair  value  estimate,  in
management's  opinion, the existing models do not necessarily provide a reliable
single measure of the fair value of its employee stock options.

Pro  forma  information  under  SFAS 123 are as follows (in thousands except per
share amounts):


<TABLE>
<CAPTION>
                                                          1997           1998            1999
                                                        --------       --------        ---------
<S>                                                     <C>            <C>             <C>
Net loss as reported  ................................  $ (3,473)      $ (4,351)       $ (19,851)
                                                        ========       ========        =========
Pro forma net loss  ..................................  $ (3,600)      $ (4,402)       $ (20,224)
                                                        ========       ========        =========
Pro forma basic and diluted net loss per share  ......  $  (2.48)      $  (3.04)       $   (2.60)
                                                        ========       ========        =========
</TABLE>

The  Company  recorded deferred compensation representing the difference between
the  exercise  price  and the deemed fair value of the Company's ordinary shares
at  the  date  of  grant. Such amount is being amortized based on an accelerated
vesting method over the vesting period of the options, generally 4 years.


Deferred compensation is as follows (in thousands):
Balance as of January 1, 1999   ....................................   $    418
Deferred compensation related to options issued to employees  ......      8,797
Less amortization of deferred compensation  ........................     (3,436)
                                                                       --------
Balance as of December 31, 1999    .................................   $  5,779
                                                                       ========

f. Non-Employee Directors Stock Option Plan:

The   Company  adopted  the  1999  Non-Employee  Directors  Stock  Option  Plan.
Commtouch  reserved a total of 250,000 shares for issuance under this plan. Each
individual  who first joined the Board of Directors as a nonemployee director on
or  after  the  effective date of the initial public offering received an option
grant  for  10,000  ordinary  shares. Each option granted under the Non-Employee
Directors  Plan  would  become  exercisable  with  respect  to one-fourth of the
number  of  shares  covered  by such option three months after the date of grant
and  with  respect  to  one-third  of the remaining shares subject to the option
every  three  months  thereafter. Each option has an exercise price equal to the
fair  market value of the ordinary shares on the grant date of such option. Each
option  has  a  maximum  term  of  ten  years, but will terminate earlier if the
optionee ceases to be a member of the Board of Directors.


During  1999,  the  Company  granted  60,000  shares  to directors at a weighted
average  exercise  price  of  $15.83  per  share. As of December 31, 999, 25,000
exercisable and 60,000 shares were outstanding.


NOTE 9: RELATED PARTY TRANSACTION

Other  accounts  receivables  includes  an advance to an officer and director of
the  Company.  In  October 1999, the Company advanced $364,000 to an officer who
is also a director.


The  loan  is  linked  to  the  Israeli Consumer Price Index, plus a 2% interest
rate. The loan was fully repaid on February 10, 2000.


                                      F-16

<PAGE>

                            COMMTOUCH SOFTWARE LTD.

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS --(Continued)

NOTE 10: SELECTED STATEMENTS OF OPERATIONS DATA

Geographic information:

The  Company  conducts  its  business  on  the  basis of one reportable segment.
Revenues from external customers (in thousands):

                                                           Revenues
                                                ----------------------------
                                                 1997      1998       1999
                                                ------    ------    --------
Israel ........................................  $   1     $  --     $   369
U.S.A  ........................................    543       109       3,056
Europe ........................................     28       130         344
Japan  ........................................    282       103         250
Other  ........................................     45        47         232
                                                ------    ------    --------
                                                 $ 899     $ 389     $ 4,251
                                                ======    ======    ========

The  Company's  long-lived  assets  as  of  December  31,  are  as  follows  (in
thousands):

                                                  1998      1999
                                                ------    --------
Israel  .......................................  $ 291     $   789
U.S.A   .......................................    641       5,359
                                                ------    --------
                                                 $ 932     $ 6,148
                                                ======    ========


                                      F-17

<PAGE>


                                3,000,000 Shares



                            COMMTOUCH SOFTWARE LTD.



                                Ordinary Shares


                               [GRAPHIC OMITTED]



                            -----------------------
                                   PROSPECTUS
                           -----------------------





                           U.S. Bancorp Piper Jaffray

                           Thomas Weisel Partners LLC

                            Warburg Dillon Read LLC

                            William Blair & Company




                                        , 2000

<PAGE>

                                    PART II

                    INFORMATION NOT REQUIRED IN PROSPECTUS


Item 13. Other Expenses of Issuance and Distribution.

The  following  table  sets  forth  the  expenses  payable  by  the Company (the
"Registrant")   in   connection  with  the  offering  of  the  securities  being
registered  other  than  the  underwriting discounts and commissions. All of the
amounts  are  estimates except for the SEC registration fee, the NASD filing fee
and the Nasdaq National Market filing fee.


         SEC registration fee  ................................. $  49,468
                                                                 ----------
         NASD filing Fee .......................................   $19,238
         Nasdaq National Market filing fee  ....................    17,500
         Blue Sky fees and expenses  ...........................    10,000
         Printing and engraving expenses .......................    50,000
         Israeli stamp duty .................................... 1,034,780
         Legal fees and expenses  ..............................    50,000
         Accounting fees and expenses ..........................    50,000
         Transfer agent and registrar fees and expenses ........    10,000
         Miscellaneous expenses ................................   343,794
                                                                 ----------
               Total  .......................................... $1,634,780
                                                                 ==========


Item 14. Indemnification of Directors and Officers.


Reference is made to Section 6 of the Underwriting Agreement, a copy of which is
filed as Exhibit 1.1 hereto, which provides for indemnification of the directors
and  officers  of the  Registrant  who sign the  Registration  Statement  by the
Underwriters  against  certain  liabilities,  including  those arising under the
Securities Act, in certain circumstances.



Israeli  law  permits  a  company  to  insure  an  Office  Holder  in respect of
liabilities  incurred by him or her as a result of the breach of his or her duty
of  care  to  the  company or to another person, or as a result of the breach of
his  fiduciary  duty  to  the company, to the extent that he acted in good faith
and  had  reasonable  cause  to  believe  that  the  act would not prejudice the
company.  A company can also insure an Office Holder for monetary liabilities as
a  result of an act or omission that he committed in connection with his serving
as  an Office Holder. Moreover, a company can indemnify an Office Holder for (a)
monetary  liability  imposed  upon  him  in favor of other persons pursuant to a
court  judgment,  including  a  compromise  judgment or an arbitrator's decision
approved   by   a  court  and  (b)  reasonable  litigation  expenses,  including
attorneys'  fees, actually incurred by him or imposed upon him by a court, in an
action,  suit  or  proceeding brought against him by or on behalf of the company
or  other  persons,  or  in  connection  with  a  criminal action which does not
require  criminal  intent  in which he was convicted, in each case in connection
with his activities as an Office Holder.

The  Articles  of  Association  of  Commtouch  allow  Commtouch  to  insure  and
indemnify  Office  Holders  to the fullest extent permitted by law provided such
insurance   of   indemnification   is  approved  by  the  Audit  Committee.  The
Registration  Rights  Agreement  which  we  entered into with Go2Net and Vulcan,
contains  certain  provisions  relating  to indemnification of our directors and
officers.  Pursuant  to these provisions, the Registrant has in effect insurance
policies in the amount of US $25 million covering its directors and officers.


Certain  members  of  our  management  team  are  officers  of  our  subsidiary,
Commtouch  Software Inc., a California Corporation, or reside in California. The
Articles  of Incorporation of Commtouch Software Inc. provide that the liability
of  the directors of the corporation for monetary damages shall be eliminated to
the  fullest extent permissible under California law and that the corporation is
authorized  to  provide for the indemnification of agents of the corporation, as
defined in Section 317 of the


                                      II-1

<PAGE>

California  General  Corporation  Law,  in excess of that expressly permitted by
Section  317  for  breach of duty to the corporation and its shareholders to the
fullest extent permissible under California law.

With  respect  to  all  proceedings  other  than shareholder derivative actions,
Section  317 permits a California corporation to indemnify any of its directors,
officers  or  other  agents  only  if  such  person acted in good faith and in a
manner  such  person  reasonably  believed  to  be  in the best interests of the
corporation  and,  in the case of a criminal proceeding, had no reasonable cause
to  believe  the  conduct of such person was unlawful. In the case of derivative
actions,  a  California corporation may indemnify any of its directors, officers
or  agents  only  if such person acted in good faith and in a manner such person
believed  to  be  in the best interests of the corporation and its shareholders.
Furthermore,  in  derivative  actions,  no indemnification is permitted (i) with
respect  to  any  matter  with respect to which the person to be indemnified has
been  held liable to the corporation, unless such indemnification is approved by
the  court; (ii) of amounts paid in settling or otherwise disposing of a pending
action  without  court  approval;  or  (iii) of expenses incurred in defending a
pending  action  which  is  settled  or  otherwise  disposed  of  without  court
approval.  To  the extent that a director, officer or agent of a corporation has
been   successful  on  the  merits  in  defense  of  any  proceeding  for  which
indemnification  is  permitted  by  Section  317,  a corporation is obligated by
Section  317  to  indemnify such person against expenses actually and reasonably
incurred in connection with the proceeding.


Pursuant to the terms under which the ordinary shares were issued to the Selling
Shareholders,  the Company has agreed to indemnify the Selling  Shareholders and
any  underwriter  against such  liabilities as they may incur as a result of any
untrue statement of a material fact in the Registration  Statement of which this
prospectus is a part, or any omission herein or therein to state a material fact
necessary in order to make the  statements  made, in light of the  circumstances
under  which they were  made,  not  misleading.  Such  indemnification  includes
liabilities  under the  Securities  Act,  the  Securities  Exchange  Act,  state
securities  laws  and  the  rules  thereunder,   but  excludes  liabilities  for
statements  or omissions  that were based on  information  provided by a Selling
Shareholder,  as to which each Selling  Shareholder  has agreed to indemnify the
Company and any underwriter.



Item 15. Recent Sales of Unregistered Securities.

Since  January 1997, we have sold and issued the securities listed below without
registering  the  securities  under the Securities Act of 1933, as amended. None
of  these  transactions  involved  any  underwriters,  underwriting discounts or
commissions, or any public offering(a)

     (1)  Between  July 1997 and March 1999, we issued and sold for cash 153,093
Series  C  Convertible  Preferred  Shares  at  a price of $72.17 per share to 22
investors.

     (2)  In  April 1999, we issued Convertible Promissory Notes that have since
converted  into  42,081  Series  D  Convertible  Preferred Shares. The effective
price for each Series D Preferred Share was $314.56.

     (3)  Concurrently  with  our initial public offering on July 16, 1999, in a
private  transaction  we  sold  896,057 ordinary shares to Go2Net for a purchase
price  of  $13,333,328  and  an  additional  448,029  shares  to Vulcan Ventures
Incorporated  for  a  purchase price of $6,666,672. The purchase price per share
was  $14.88,  equal  to  the initial public offering price less the underwriting
discount.  In  addition,  we  issued  a  warrant to Go2Net to purchase 1,136,000
ordinary shares at an exercise price of $12.80 per share.

     (4)  In  connection with an Email Services Agreement dated October 27, 1999
between  Commtouch's  U.S.  subsidiary  Commtouch  Software, Inc., and Microsoft
Corporation,  Commtouch  granted Microsoft a warrant, exercisable until December
29,  1999,  to  purchase  707,964  of Commtouch's ordinary shares at an exercise
price  of  $28.25  per  share for an aggregate exercise price of $20,000,000. On
December  29,  1999,  Microsoft  exercised  the  warrant  and  now holds 707,965
shares.


- ------------
(a) Share  figures and price-per-share figures do not reflect the twenty-for-one
    stock  split  which  became  effective  concurrently with the initial public
    offering.


                                      II-2

<PAGE>

We  believe  that each transaction listed above was exempt from the registration
requirements  of  the  Securities  Act of 1933, as amended, by virtue of Section
4(2)  of  the Securities Act, Regulation D, promulgated under the Securities Act
or  Rule  701  with respect to compensatory benefit plans and contracts relating
to  compensation  as  provided  under  Rule 701. The recipients of securities in
each  such  transaction  represented  their intentions to acquire the securities
for  investment  only  and not with a view to or for sale in connection with any
distribution   thereof  and  appropriate  legends  were  affixed  to  the  share
certificates  and  warrants  issued  in  such  transactions.  All recipients had
adequate access, through their relationships with us, to information about us.

<TABLE>

Item 16. Exhibits and Financial Statement Schedules.
<CAPTION>
(a) Exhibits

Exhibit
 Number                                      Description of Document
- ---------   --------------------------------------------------------------------------------------------
<S>         <C>

 1.1        Form of Underwriting Agreement
 3.1        Memorandum of Association of the Registrant.(1)
 3.2        Articles of Association of the Registrant.(1)
 4.1        Specimen Certificate of Ordinary Shares.(1)
 4.2        Amended and Restated Registration Rights Agreement dated as of April 19, 1999.(1)
 4.2.1      Amendment No. 1 to Amended and Restated Registration Rights Agreement dated as of
            December 29, 1999.(5)
 4.2.2      Amendment No. 2 to Amended and Restated Registration Rights Agreement dated as of
            March 10, 2000.
 4.3        Form of Tag-Along Rights (Right of First Refusal and Co-Sale) Agreement dated as of
            December 23, 1998.(1)
 4.4        Form of Drag-Along Letter dated as of April 15, 1999.(1)
 5.1        Opinion of Naschitz, Brandes & Co., Israeli counsel to the Registrant, as to certain legal
            matters with respect to the legality of the shares.**
10.1        Registrant's 1996 CSI Stock Option Plan and forms of agreements thereunder.(1)
10.2        Registrant's form of Stock Option Agreement for Israeli Employees.(1)
10.3        Registrant's 1999 Stock Option Plan and form of agreement thereunder.(1)
10.4        Commtouch Software Ltd. 1999 Nonemployee Directors Stock Option Plan.(1)
10.5        Commtouch Software Ltd. 1999 Employee Stock Purchase Plan and forms thereunder.(1)
10.6        Sublease between ASCII of America, Inc. and Commtouch for Commtouch's offices in
            Santa Clara, California, dated December 16, 1998.(1)
10.7        Lease between DeAnza Building and Commtouch for Commtouch's offices in Sunnyvale,
            California, dated February 5, 1996, as amended.(1)
10.8        Form of Letter Agreement between the Registrant and U.S. Bancorp Piper Jaffray.(2)
10.9        Form of Customized Web-based Email Service Agreement by and between Go2Net, Inc.
            and the Registrant.(3)
10.9.1      Form of Share Warrant for Go2Net, Inc. to purchase ordinary shares of the Registrant.(3)
10.9.2      Form of Share Warrant for Microsoft Corporation to purchase ordinary shares of the
            Registrant dated October 26, 1999.(5)
10.9.3      Amendment dated December 29, 1999 to Form of Share Warrant for Microsoft
            Corporation to purchase ordinary shares of the Registrant.(5)
10.9.4      Lockup Agreement between the Registrant and Microsoft Corporation dated December 29,
            1999.(5)
10.10       Form of Share Purchase Agreement by and among the Registrant, Go2Net, Inc. and
            Vulcan Ventures Incorporated.(3)
10.10.1     Form of Registration Rights Agreement by and among the Registrant, Go2Net, Inc. and
            Vulcan Ventures Incorporated.(3)
10.10.2     Form of Letter Agreement between the Registrant and Selling Securityholders extending
            deadline for SEC registration.(5)
</TABLE>


                                      II-3

<PAGE>


<TABLE>
<CAPTION>
Exhibit
Number                                   Description of Document
- --------   --------------------------------------------------------------------------------------
<S>        <C>
21.1       Subsidiaries of the Registrant.(1)
23.1       Consent of Kost, Forer & Gabbay, independent auditors.**
23.2       Consent of Naschitz, Brandes & Co. (contained in Exhibit 5.1)
23.3       Consent of McCutchen, Doyle, Brown & Enersen, LLP.**
24.1       Power of Attorney of directors and certain officers of the Registrant.**
99.1       Press Release of the Registrant, dated July 7, 1999.(2)
99.2       Memorandum of Understanding between the Registrant, Go2Net, Inc. and Vulcan Ventures
           Incorporated, dated July 7, 1999.(2)
<FN>
- ------------
(1) Incorporated  by  reference to similarly numbered exhibit in Amendment No. 1
    to  Registration  Statement on Form F-1 of Commtouch Software Ltd., File No.
    333-78531.
(2) Incorporated  by  reference to similarly numbered exhibit in Amendment No. 4
    to  Registration  Statement on Form F-1 of Commtouch Software Ltd., File No.
    333-78531.
(3) Incorporated  by  reference to similarly numbered exhibit in Amendment No. 5
    to  Registration  Statement on Form F-1 of Commtouch Software Ltd., File No.
    333-78531.
(4) Filed  with  Amendment  No.  1  to  Registration  Statement  on  Form F-1 of
    Commtouch Software Ltd., File No. 333-89773, filed on January 5, 2000.
(5) Incorporated  by  reference to similarly numbered exhibit in Amendment No. 1
    to  Registration  Statement on Form F-1 of Commtouch Software Ltd., File No.
    333-89773.
  * To be filed by amendment.
 ** Previously filed.
</FN>
</TABLE>



(b) Financial Statement Schedules.

   Schedule II

Item 17. Undertakings.

(a) The undersigned Registrant hereby undertakes:


     (1)  For  the purpose of determining any liability under the Securities Act
of  1933,  the  information omitted from the form of prospectus filed as part of
this  Registration  Statement in reliance upon Rule 430A and contained in a form
of  prospectus  filed  by  the  registrant  pursuant to Rule 424(b)(1) or (4) or
497(h)  under the Securities Act shall be deemed to be part of this Registration
Statement at the time it was declared effective.

     (2)  For  the purpose of determining any liability under the Securities Act
of  1933, each post-effective amendment that contains a form of prospectus shall
be  deemed to be a new registration statement relating to the securities offered
therein,  and the offering of such securities at that time shall be deemed to be
the initial bona fide offering thereof.


(b)  Insofar as indemnification for liabilities arising under the Securities Act
of  1933  may be permitted to directors, officers and controlling persons of the
Registrant  pursuant  to  the foregoing provisions, or otherwise, the Registrant
has  been  advised that in the opinion of the Securities and Exchange Commission
such  indemnification  is  against  public policy as expressed in the Securities
Act   and   is,  therefore,  unenforceable.  In  the  event  that  a  claim  for
indemnification  against  such liabilities (other than payment by the Registrant
of  expenses  incurred  or  paid by a director, officer or controlling person of
the  Registrant  in the successful defense of any action, suit or proceeding) is
asserted  by such director, officer or controlling person in connection with the
securities  being  registered, the Registrant will, unless in the opinion of its
counsel  the matter has been settled by controlling precedent, submit to a court
of  appropriate  jurisdiction the question whether such indemnification by it is
against  public  policy  as expressed in the Securities Act and will be governed
by the final adjudication of such issue.


                                      II-4

<PAGE>

                                  SIGNATURES


Pursuant  to  the requirements of the Securities Act of 1933, the registrant has
duly  caused  this  Amendment  to the Registration Statement to be signed on its
behalf  by the undersigned, thereunto duly authorized, in the city of Palo Alto,
state of California, on March 13, 2000.

                                          COMMTOUCH SOFTWARE LTD.


                                          By:        /s/ JAMES E. COLLINS
                                             -----------------------------------
                                                         James E. Collins
                                                     Chief Financial Officer

Pursuant  to  the  requirements of the Securities Act of 1933, this Amendment to
the  Registration  Statement  has  been  signed  by the following persons in the
capacities and on the dates indicated.

<TABLE>
<CAPTION>
           Name                                Title                          Date
- -----------------------------   --------------------------------------   ----------------
<S>                             <C>                                      <C>
       /S/ GIDEON MANTEL*       Chief Executive Officer and Director     March 13, 2000
- ---------------------------     (Principal Executive Officer)
          Gideon Mantel

     /s/ JAMES E. COLLINS*      Chief Financial Officer (Principal       March 13, 2000
- ---------------------------     Financial Officer)
        James E. Collins

       /s/ DEVYANI PATEL*       Controller                               March 13, 2000
- ---------------------------
          Devyani Patel

           /s/ AMIR LEV*        Director                                 March 13, 2000
- ---------------------------
             Amir Lev

      /s/ ALLAN C. BARKAT*      Director                                 March 13, 2000
- ---------------------------
         Allan C. Barkat

         /s/ YAIR SAFRAI*       Director                                 March 13, 2000
- ---------------------------
            Yair Safrai

         /s/ YOSEPH SELA*       Director                                 March 13, 2000
- ---------------------------
           Yoseph Sela

      /s/ NAHUM SHARFMAN*       Director                                 March 13, 2000
- ---------------------------
         Nahum Sharfman

        /s/ THOMAS CAMP*        Director                                 March 13, 2000
- ---------------------------
           Thomas Camp

       /s/ RICHARD SORKIN*      Director                                 March 13, 2000
- ---------------------------
         Richard Sorkin

     /s/ JAMES E. COLLINS *    Individually and as                       March 13, 2000
- ---------------------------     Attorney-in-fact and
        James E. Collins           Authorized U.S. Representative

</TABLE>

                                      II-5

<PAGE>

                                  COMMTOUCH SOFTWARE LTD.


                      SCHEDULE II -- VALUATION AND QUALIFYING ACCOUNTS
                                 U.S. Dollars in thousands


<TABLE>
<CAPTION>
                                 Balance at
                                    the          Charged to                    Balance at
                                beginning of      costs and                    end of the
                                 the period       expenses      Deductions       period
                                --------------   ------------   ------------   ------------
<S>                             <C>              <C>            <C>            <C>
Year ended December 31, 1997:
 Bad debt  ..................        --              170            170             --
                                     ==              ====           ====           ====
Year ended December 31, 1998:
 Bad debt  ..................        --               --             --             --
                                     ==              ====           ====           ====
Year ended December 31, 1999:
 Bad debt  ..................        --              405             --            405
                                     ==              ====           ====           ====
</TABLE>


                                      S-1

<PAGE>

                           [ERNST & YOUNG LETTERHEAD]



To: Board of Directors Commtouch Software LTD.

We  have  audited  the  consolidated  financial statements of Commtouch Software
LTD.  as  of  December 31, 1999 and 1998, and for each of the three years in the
period  ended  December  31,  1999,  and  have  issued  our report thereon dated
January  31,  2000  (included  elsewhere  in  this  Registration Statement). Our
audits  also  included  the financial statement schedule listed in Item 16(b) of
this  Registration  Statement.  This  schedule  is  the  responsibility  of  the
Company's  management.  Our responsibility is to express an opinion based on our
audits.


In  our  opinion,  the  financial  statement  schedule  referred  to above, when
considered  in  relation to the basic consolidated financial statements taken as
a  whole,  presents  fairly  in  all material respects the information set forth
therein.



                                                /s/ KOST, FORER & GABBAY
                                          -------------------------------------
                                                    Kost, Forer & Gabbay
                                         A member of Ernst & Young International



Tel-Aviv, Israel
January 31, 2000


                                      S-2



                               3,000,000 Shares1

                             Commtouch Software Ltd.

                                 Ordinary Shares

                               PURCHASE AGREEMENT

                                                                 March ___, 2000
U.S. BANCORP PIPER JAFFRAY INC.
THOMAS WEISEL PARTNERS LLC
WARBURG DILLON READ LLC,
  A subsidiary of UBS AG
WILLIAM BLAIR & COMPANY
  As Representatives of the several
  Underwriters named in Schedule I hereto
c/o U.S. Bancorp Piper Jaffray
222 South Ninth Street
Minneapolis, Minnesota 55402

Gentlemen:

         Commtouch  Software Ltd., an Israeli company (the  "Company"),  and the
stockholders   of  the  Company  listed  in  Schedule  I  hereto  (the  "Selling
Stockholders")  severally propose to sell to the several  Underwriters  named in
Schedule II hereto (the  "Underwriters")  an aggregate of 3,000,000  shares (the
"Firm  Shares") of ordinary  shares,  nominal  value NIS 0.05 per share  (herein
called "Ordinary Shares"),  of the Company. The Firm Shares consist of 1,669,000
authorized but unissued Ordinary Shares to be issued and sold by the Company and
1,331,000  outstanding  Ordinary Shares to be sold by the Selling  Shareholders.
The Company has also granted to the several  Underwriters  an option to purchase
up to 450,000  additional  Ordinary Shares on the terms and for the purposes set
forth in Section 3 hereof (the "Option Shares").  The Firm Shares and any Option
Shares  purchased  pursuant to this Purchase  Agreement are herein  collectively
called the "Securities."

         The Company and the Selling Shareholders hereby confirm their agreement
with respect to the sale of the Securities to the several Underwriters, for whom
you are acting as Representatives (the "Representatives").

         Registration Statement and Prospectus. A registration statement on Form
F-1 (File No. 333-31836) with respect to the Securities, including a preliminary
form of  prospectus,  has been  prepared by the Company in  conformity  with the
requirements  of the  Securities  Act


- ------------
1 Plus an option to purchase up to 450,000 additional shares from the Company to
cover over-allotments.


<PAGE>

of 1933,  as amended  (the  "Act"),  and the rules and  regulations  ("Rules and
Regulations")  of the  Securities  and Exchange  Commission  (the  "Commission")
thereunder  and has been filed with the  Commission;  one or more  amendments to
such  registration  statement  have also been so prepared and have been, or will
be, so filed;  and,  if the  Company has elected to rely upon Rule 462(b) of the
Rules and Regulations to increase the size of the offering  registered under the
Act,  the Company  will  prepare  and file with the  Commission  a  registration
statement with respect to such increase pursuant to Rule 462(b).  Copies of such
registration statement(s) and amendments and each related preliminary prospectus
have been delivered to you.

         If the  Company has elected not to rely upon Rule 430A of the Rules and
Regulations, the Company has prepared and will promptly file an amendment to the
registration statement and an amended prospectus (including a term sheet meeting
the requirements of Rule 434 of the Rules and  Regulations).  If the Company has
elected to rely upon Rule 430A of the Rules and Regulations, it will prepare and
file a  prospectus  (or a term  sheet  meeting  the  requirements  of Rule  434)
pursuant to Rule 424(b) that discloses the information  previously  omitted from
the  prospectus  in reliance  upon Rule 430A.  Such  registration  statement  as
amended at the time it is or was declared  effective by the Commission,  and, in
the event of any amendment  thereto  after the  effective  date and prior to the
First Closing Date (as hereinafter defined),  such registration  statement as so
amended (but only from and after the effectiveness of such amendment), including
a registration statement (if any) filed pursuant to Rule 462(b) of the Rules and
Regulations  increasing  the size of the offering  registered  under the Act and
information (if any) deemed to be part of the registration statement at the time
of  effectiveness  pursuant  to  Rules  430A(b)  and  434(d)  of the  Rules  and
Regulations,  is hereinafter called the "Registration Statement." The prospectus
included  in the  Registration  Statement  at  the  time  it is or was  declared
effective by the Commission is hereinafter called the "Prospectus,"  except that
if any prospectus (including any term sheet meeting the requirements of Rule 434
of the Rules and  Regulations  provided by the Company for use with a prospectus
subject  to  completion  within  the  meaning  of Rule  434 in order to meet the
requirements of Section 10(a) of the Rules and Regulations) filed by the Company
with the Commission pursuant to Rule 424(b) (and Rule 434, if applicable) of the
Rules and Regulations or any other such prospectus  provided to the Underwriters
by the  Company  for use in  connection  with  the  offering  of the  Securities
(whether or not required to be filed by the Company with the Commission pursuant
to Rule 424(b) of the Rules and Regulations) differs from the prospectus on file
at the time the  Registration  Statement  is or was  declared  effective  by the
Commission,  the term  "Prospectus"  shall  refer to such  differing  prospectus
(including  any term  sheet  within  the  meaning  of Rule 434 of the  Rules and
Regulations)  from  and  after  the  time  such  prospectus  is  filed  with the
Commission or transmitted  to the  Commission  for filing  pursuant to such Rule
424(b)  (and Rule  434,  if  applicable)  or from and after the time it is first
provided to the Underwriters by the Company for such use. The term  "Preliminary
Prospectus"  as used herein  means any  preliminary  prospectus  included in the
Registration  Statement  prior to the time it becomes or became  effective under
the Act and any  prospectus  subject to  completion as described in Rule 430A or
434 of the Rules and Regulations.


                                       2
<PAGE>

         Representations   and   Warranties  of  the  Company  and  the  Selling
Shareholders.

                  (a) The Company  represents  and warrants to, and agrees with,
the several Underwriters as follows:

                           (i) No order  preventing or suspending the use of any
Preliminary  Prospectus has been issued by the  Commission and each  Preliminary
Prospectus,  at the time of filing thereof,  did not contain an untrue statement
of a  material  fact or omit to state a  material  fact  required  to be  stated
therein  or  necessary  to make  the  statements  therein,  in the  light of the
circumstances  under  which  they were made,  not  misleading;  except  that the
foregoing  shall not apply to  statements in or omissions  from any  Preliminary
Prospectus  in  reliance  upon,  and in  conformity  with,  written  information
furnished to the Company by you, or by any Underwriter through you, specifically
for use in the preparation thereof.

                           (ii) As of the time the  Registration  Statement  (or
any  post-effective  amendment thereto,  including a registration  statement (if
any) filed pursuant to Rule 462(b) of the Rules and  Regulations  increasing the
size of the offering  registered under the Act) is or was declared  effective by
the  Commission,  upon the filing or first delivery to the  Underwriters  of the
Prospectus  (or any  supplement  to the  Prospectus  (including  any term  sheet
meeting the requirements of Rule 434 of the Rules and  Regulations))  and at the
First Closing Date and Second  Closing Date (as  hereinafter  defined),  (A) the
Registration  Statement and the  Prospectus  (in each case, as so amended and/or
supplemented)  conformed  or  will  conform  in  all  material  respects  to the
requirements  of the Act and the Rules  and  Regulations,  (B) the  Registration
Statement  (as so amended) did not or will not include an untrue  statement of a
material fact or omit to state a material fact required to be stated  therein or
necessary to make the statements therein not misleading,  and (C) the Prospectus
(as so  supplemented)  did not or will not  include  an  untrue  statement  of a
material fact or omit to state a material fact required to be stated  therein or
necessary to make the statements therein, in light of the circumstances in which
they are or were made, not misleading; except that the foregoing shall not apply
to statements in or omissions  from any such document in reliance  upon,  and in
conformity with, written information  furnished to the Company by you, or by any
Underwriter through you, specifically for use in the preparation thereof. If the
Registration  Statement has been declared  effective by the Commission,  no stop
order  suspending  the  effectiveness  of the  Registration  Statement  has been
issued,  and no  proceeding  for that  purpose  has been  initiated  or,  to the
Company's knowledge, threatened by the Commission.

                           (iii) The  consolidated  financial  statements of the
Company,  together  with  the  notes  thereto,  set  forth  in the  Registration
Statement  and  the  Prospectus   comply  in  all  material  respects  with  the
requirements of the Act and fairly present the consolidated  financial condition
of the Company and its  consolidated  subsidiaries  indicated and the results of
operations  and  changes  in cash flows for the  periods  therein  specified  in
conformity  with  United  States  generally   accepted   accounting   principles
consistently applied throughout the periods involved (except as otherwise stated
therein);  and the supporting  schedules included in the Registration  Statement
present fairly the information required to be stated therein. No


                                       3
<PAGE>

other  financial  statements  or  schedules  are  required to be included in the
Registration Statement or Prospectus.  Kost, Forer & Gabbay (a member of Ernst &
Young  International),  which has  expressed  its  opinion  with  respect to the
financial statements and schedules filed as a part of the Registration Statement
and included in the Registration  Statement and the Prospectus,  are independent
public  accountants  as required by the Act and the Rules and  Regulations.  The
summary financial and other data included in the Registration  Statement and the
Prospectus  present fairly the information  shown therein and have been compiled
on a basis consistent with the financial statements presented therein.

                           (iv) Each of the Company and Commtouch Software Inc.,
a California  corporation (the "U.S.  Subsidiary"),  and Commtouch Software (UK)
Ltd.,  an  English  corporation  (the  "UK  Subsidiary,"  and  collectively  the
"Subsidiaries"),   has  been  duly  organized  and  is  validly  existing  as  a
corporation  under the laws of its jurisdiction of  incorporation  and Commtouch
Software  Inc. is in good  standing  under the laws of  California.  Each of the
Company and the  Subsidiaries  has full corporate power and authority to own its
properties  and  conduct  its  business  as  currently  being  carried on and as
described  in the  Registration  Statement  and  the  Prospectus,  and  is  duly
qualified  to do  business  as a foreign  corporation  in good  standing in each
jurisdiction in which it owns or leases real property or in which the conduct of
its business makes such  qualification  necessary and in which the failure to so
qualify  would  have a  material  adverse  effect on the  assets or  properties,
business, results of operations, prospects or condition (financial or otherwise)
of the  Company  and the  Subsidiaries,  taken as a whole (a  "Material  Adverse
Effect").

                           (v)  Except  as  contemplated  in  the   Registration
Statement and the  Prospectus,  subsequent to the  respective  dates as of which
information is given in the Registration  Statement and the Prospectus,  neither
the Company nor the  Subsidiaries  has  incurred  any  material  liabilities  or
obligations, direct or contingent, or entered into any material transactions, or
declared or paid any dividends or made any distribution of any kind with respect
to its share  capital  stock;  and  there  has not been any  change in the share
capital stock (other than a change in the number of outstanding  Ordinary Shares
due to the  issuance  of shares  upon the  exercise  of  outstanding  options or
warrants),  or any material  change in the short-term or long-term  debt, or any
issuance  of  options,  warrants,  convertible  securities  or other  rights  to
purchase the share capital  stock,  of the Company or the  Subsidiaries,  or any
change  that had a Material  Adverse  Effect,  or any  development  involving  a
prospective Material Adverse Effect.

                           (vi)   Except  as  set  forth  in  the   Registration
Statement and the  Prospectus,  there is not pending or, to the knowledge of the
Company, threatened or contemplated, any action, suit or proceeding to which the
Company or any of its subsidiaries is a party or to which any property or assets
of the  Company  or the  Subsidiaries  is  subject  before  or by any  court  or
governmental agency, authority or body, or any arbitrator, which might result in
a Material Adverse Effect.

                           (vii)  There are no  contracts  or  documents  of the
Company or the Subsidiaries  that are required to be described in the Prospectus
or to be filed as exhibits to


                                       4
<PAGE>

the Registration  Statement by the Act or by the Rules and Regulations that have
not been so described or filed.

                           (viii)  This  Agreement  has  been  duty  authorized,
executed and  delivered  by the  Company,  and  constitutes  a valid,  legal and
binding  obligation of the Company,  enforceable  in accordance  with its terms,
except as rights to  indemnity  hereunder  may be limited by  federal,  state or
foreign securities laws or the policies  underlying such laws and except as such
enforceability  may be  limited by  bankruptcy,  insolvency,  reorganization  or
similar laws affecting the rights of creditors  generally and subject to general
principles of equity. The execution,  delivery and performance of this Agreement
and the consummation of the transactions  herein contemplated will not result in
a breach or violation  of any of the terms and  provisions  of, or  constitute a
default under, any statute,  any agreement or instrument to which the Company is
a party or by which it is bound or to which any of its property is subject,  the
Company's  Memorandum of Association or Articles of  Association,  or any order,
rule,  regulation or decree of any court or  governmental  agency or body having
jurisdiction  over the Company or any of its properties;  no consent,  approval,
authorization  or order of, or filing with, any court or governmental  agency or
body is required for the execution,  delivery and  performance of this Agreement
or for the consummation of the transactions  contemplated hereby,  including the
issuance  or  sale  of the  Securities  by the  Company,  except  such as may be
required under the Act or state securities or blue sky laws; and the Company has
full power and authority to enter into this  Agreement  and to authorize,  issue
and sell the Securities as contemplated by this Agreement.

                           (ix)  All  of  the  issued  and  outstanding   equity
securities of the Company,  including the outstanding  Ordinary Shares, are duly
authorized and validly issued, fully paid and nonassessable, have been issued in
compliance  with  all  Israeli  and  U.S.  federal  and  state  securities  laws
(including,  without  limitation,  applicable Israeli securities laws), were not
issued in  violation of or subject to any  preemptive  rights or other rights to
subscribe for or purchase securities, and the holders thereof are not subject to
personal liability by reason of being such holders; and the share capital of the
Company,  including the Ordinary Shares,  conforms to the description thereof in
the  Registration  Statement and Prospectus.  Except as otherwise  stated in the
Registration  Statement and Prospectus,  there are no preemptive rights or other
rights to subscribe for or to purchase,  or any  restriction  upon the voting or
transfer  of, any  Ordinary  Shares  pursuant  to the  Company's  Memorandum  of
Association or Articles of  Association or any agreement or other  instrument to
which the Company is a party or by which the Company is bound. All of the issued
and outstanding  shares of capital stock of each of the  Subsidiaries  have been
duly and  validly  authorized  and issued and are fully paid and  nonassessable,
and,  except  as  otherwise  described  in the  Registration  Statement  and the
Prospectus,  the Company owns of record and beneficially,  free and clear of any
security interests, claims, liens, proxies, equities or other encumbrances,  all
of the issued and outstanding  shares of such stock.  Except as described in the
Registration  Statement and the Prospectus (and except for options granted after
the date of the  Registration  Statement and the  Prospectus to employees of the
Company  pursuant  to the  stock  option  plans  described  in the  Registration
Statement and the  Prospectus,  which option  grants have been  disclosed to the
Representatives), there are no options, warrants,


                                       5
<PAGE>

agreements,  contracts  or other rights in existence to purchase or acquire from
the Company or the  Subsidiaries  any shares of the share capital of the Company
or  the   Subsidiaries.   The  Company  has  an   authorized   and   outstanding
capitalization  as set forth in the  Registration  Statement and the  Prospectus
(except for options granted after the date of the Registration Statement and the
Prospectus  to  employees  of the  Company  pursuant to the stock  option  plans
described in the Registration Statement and the Prospectus,  which option grants
have been disclosed to the Representatives).

                           (x) The Securities which may be sold hereunder by the
Company have been duly  authorized  and, when issued,  delivered and paid for in
accordance  with the terms  hereof,  will have been  validly  issued and will be
fully paid and  nonassessable,  and the holders  thereof  will not be subject to
personal  liability  by  reason  of being  such  holders,  and  conforms  to the
description thereof in the Registration Statement and the Prospectus. No further
approval  or  authority  of the  shareholders  of the  Company  or the  Board of
Directors of the Company is required for the sale and issuance of the Securities
hereunder.

                           (xi) Neither the filing of the Registration Statement
nor the offering or sale of the  Securities as  contemplated  by this  Agreement
gives rise to any rights for or relating  to the  registration  of any  Ordinary
Shares or other securities of the Company, and no person or entity holds a right
to require  registration  under the Securities Act of shares of capital stock of
the Company at any other time, except as disclosed in the Registration Statement
and the Prospectus.

                           (xii) The Company and the Subsidiaries  hold, and are
operating in compliance in all material  respects with, all franchises,  grants,
authorizations,  licenses, permits, easements, consents, certificates and orders
of any  governmental or regulatory body required for the conduct of its business
and all such franchises, grants,  authorizations,  licenses, permits, easements,
consents,  certifications and orders are valid and in full force and effect; and
the Company and the Subsidiaries are in compliance in all material respects with
all applicable federal, state, local and foreign (including, without limitation,
Israeli, English and U.S.) laws, regulations, orders and decrees.

                           (xiii) The Company and the Subsidiaries have good and
marketable title to all property described in the Registration Statement and the
Prospectus  as being  owned by them,  in each case free and clear of all  liens,
claims, security interests or other encumbrances except such as are described in
the Registration Statement and the Prospectus;  the property held under lease by
the Company and the  Subsidiaries  are held by them under valid,  subsisting and
enforceable  leases with only such  exceptions  with  respect to any  particular
lease as do not  interfere  in any  material  respect  with the  conduct  of the
business of the Company or the Subsidiaries.

                           (xiv) The Company and the Subsidiaries own or possess
all  patents,  patent  applications,   trademarks,  service  marks,  tradenames,
trademark  registrations,  service  mark  registrations,  copyrights,  licenses,
inventions, trade secrets know-how, proprietary techniques, processes and rights
("Intellectual Property") used in the conduct of the business


                                       6
<PAGE>

of the Company and the Subsidiaries as currently carried on (including products,
services  and  technology  contemplated  by  current  research  and  development
projects) and as described in the  Registration  Statement  and the  Prospectus.
Except as stated in the Registration Statement and the Prospectus, no name which
the Company or the Subsidiaries  uses and no other aspect of the business of the
Company or the Subsidiaries will involve or give rise to any infringement of, or
license or similar fees for, any Intellectual Property of others material to the
business  or   prospects  of  the  Company  and  neither  the  Company  nor  the
Subsidiaries  has received any notice  alleging  any such  infringement  or fee,
except as to  matters  that will not cause a  Material  Adverse  Effect.  To the
knowledge of the Company,  its  Intellectual  Property is not being infringed by
any third  parties which  infringement  could  reasonably  be expected,  whether
singly or in the aggregate, to have a Material Adverse Effect.

                           (xv) Neither the Company nor the  Subsidiaries (i) is
in  violation  of  its  respective   Memorandum  of  Association,   Articles  of
Association,  charter or  by-laws,  as the case may be, or other  organizational
documents  (ii) in breach of or otherwise in default in the  performance  of any
obligation,  agreement or  condition  contained  in any bond,  debenture,  note,
indenture,  loan agreement or any other contract,  lease or other  instrument to
which any of them is subject  or by which any of them may be bound,  or to which
any of the  property  or assets of the  Company  or any of its  subsidiaries  is
subject,  nor has any event  occurred nor  condition  exist that with the notice
and/or the  passage of time would give rise to such a breach or default or (iii)
is in violation of any law,  ordinance,  government  rule,  regulation  or court
order or decree to which any of them is  subject  or by which any of them may be
bound or to which any of the  property  or assets of the  Company  or any of its
subsidiaries  is subject,  except in the case of clauses (ii) and (iii) for such
breaches, defaults or violations that individually or in the aggregate would not
have a Material Adverse Effect.

                           (xvi) The Company and its subsidiaries have filed all
Israeli, English and U.S. federal, state, local and foreign income and franchise
tax  returns  required  to be filed and are not in default in the payment of any
taxes  which were  payable  pursuant  to said  returns or any  assessments  with
respect thereto,  other than any which the Company or any of its subsidiaries is
contesting in good faith.

                           (xvii) The Company has not  distributed  and will not
distribute  any  prospectus or other  offering  material in connection  with the
offering and sale of the Securities other than any Preliminary Prospectus or the
Prospectus  or other  materials  permitted by the Act to be  distributed  by the
Company.

                           (xviii)  The   Securities   have  been  approved  for
quotation  upon  notice of  issuance on the NASDAQ  National  Market.

                           (xix) The Company has no subsidiary  or  subsidiaries
other than the  Subsidiaries  and the  Company  owns no  capital  stock or other
equity or ownership or  proprietary  interest in any  corporation,  partnership,
limited  liability  company,  joint venture  association,  trust or other entity
other than the Subsidiaries.


                                       7
<PAGE>

                           (xx)  Each  of  the  Company  and  the   Subsidiaries
maintains  a system  of  internal  accounting  controls  sufficient  to  provide
reasonable  assurances  that (i)  transactions  are executed in accordance  with
management's general or specific  authorization;  (ii) transactions are recorded
as necessary to permit  preparation of financial  statements in conformity  with
generally  accepted  accounting  principles and to maintain  accountability  for
assets; (iii) access to assets is permitted only in accordance with management's
general or specific  authorization;  and (iv) the  recorded  accountability  for
assets is compared with existing assets at reasonable  intervals and appropriate
action is taken with respect to any differences.

                           (xxi) Other than as  contemplated  by this Agreement,
the Company has not incurred any  liability  for any finder's or broker's fee or
agent's  commission  in  connection  with the  execution  and  delivery  of this
Agreement or the consummation of the transactions contemplated hereby.

                           (xxii)  Neither the Company nor any of its affiliates
is presently  doing  business with the  government of Cuba or with any person or
affiliate located in Cuba.

                           (xxiii) No labor  dispute  with the  employees of the
Company or any of its  subsidiaries  exists or, to the knowledge of the Company,
is  threatened;  and the Company is not aware of any existing or imminent  labor
disturbance  by the employees of any of its principal  suppliers or  contractors
which could have a Material  Adverse Effect.  Neither the Company nor any of its
subsidiaries has violated any applicable safety or similar law applicable to its
business nor any federal or state law relating to  discrimination in the hiring,
promotion  or pay of  employees,  nor any  applicable  federal or state wage and
hours law, nor any provisions of the Employee  Retirement Income Security Act or
the rules and regulations promulgated thereunder,  the violation of any of which
could have a Material Adverse Effect. The Company is not aware of any threatened
or pending  litigation between the Company or any of its subsidiaries and any of
its executive  officers  which, if adversely  determined,  could have a Material
Adverse Effect,  and has no reason to believe that such officers will not remain
in the employment of the Company during the next twelve months.

                           (xxiv) No  transaction  has occurred or  relationship
exists  between  or  among  the  Company  or the  Subsidiaries  and any of their
officers or directors  or any  affiliate  or  affiliates  of any such officer or
director  that  is  required  to be  described  in and is not  described  in the
Registration Statement and the Prospectus.

                           (xxv) The  Company and each of its  subsidiaries  are
insured by insurers of recognized financial  responsibility  against such losses
and risks in such  amounts as are  customary  in the  business in which they are
engaged;  and neither the Company nor any  subsidiary  has any reason to believe
that it will not be able to renew its  existing  insurance  coverage as and when
such coverage expires or to obtain similar coverage from similar insurers as may
be necessary to continue their business at a cost that would not have a Material
Adverse Effect.


                                       8
<PAGE>

                           (xxvi)  There are no  affiliations  with the National
Association  of  Securities  Dealers,  Inc.  (the  "NASD")  among the  Company's
officers,  directors or, to the best knowledge of the Company,  any five percent
or greater  shareholder of the Company,  or any  shareholder  which has acquired
restricted  securities from the Company during the 12-month  period  immediately
preceeding the date of this Agreement,  except as set forth in the  Registration
Statement  and  the  Prospectus  or  otherwise   disclosed  in  writing  to  the
Representatives.

                           (xxvii)   Neither   the   Company   nor  any  of  its
subsidiaries is an "investment company" nor
a company  "controlled"  by an  "investment  company"  within the meaning of the
Investment  Company  Act of 1940,  as  amended,  and the rules  and  regulations
thereunder (the "Investment Company Act").

                           (xxviii)   Neither   the   Company  nor  any  of  its
subsidiaries  or, to the knowledge of the Company,  any other person  associated
with or acting on behalf of the  Company or any of its  subsidiaries  including,
without limitation,  any director,  officer, agent or employee of the Company or
any of its subsidiaries has,  directly or indirectly,  while acting on behalf of
the  Company  or any of its  subsidiaries,  (i) used  any  corporate  funds  for
unlawful contributions, gifts, entertainment or other unlawful expenses relating
to political  activity;  (ii) made any  unlawful  payment to foreign or domestic
government officials or employees or to foreign or domestic political parties or
campaigns  from  corporate  funds;  (iii)  violated any provision of the Foreign
Corrupt  Practices  Act of 1977,  as  amended;  or (iv) made any other  unlawful
payment.

                           (xxix) The Company has  reviewed its  operations  and
that of its  subsidiaries and any third parties with which the Company or any of
its subsidiaries has a material relationship to evaluate the extent to which the
business  or  operations  of the  Company  or any of its  subsidiaries  will  be
affected by the Year 2000 Problem (defined  below).  As a result of such review,
the Company has no reason to believe,  and does not believe,  that the Year 2000
Problem will have a Material  Adverse Effect,  or result in any material loss or
interference with the Company's business or operations.  The "Year 2000 Problem"
as used herein means any  significant  risk that  computer  hardware or software
used in the receipt, transmission, processing, manipulation, storage, retrieval,
retransmission or other utilization of data or in the operation of mechanical or
electrical  systems of any kind will not,  in the case of dates or time  periods
occurring  after  December 31, 1999,  function at least as effectively as in the
case of dates or time periods occurring prior to January 1, 2000.

                           (xxx) The Company  does not  believe  that it is, and
upon  the  consummation  of  the  transactions   contemplated   hereby  and  the
application of the proceeds as described in the  Registration  Statement and the
Prospectus  under the caption  "Use of  Proceeds"  does not believe that it will
become, a "passive foreign investment company" (herein called a PFIC) as defined
in Section 1296 of the Internal  Revenue Code of 1986, as amended (herein called
the Code).


                                       9
<PAGE>

                           (xxxi) The  Company  has not taken and will not take,
directly  or  indirectly,  any action  designed to or that might  reasonably  be
expected to cause or result in stabilization or manipulation of the price of the
Ordinary Shares to facilitate the sale or resale of the Securities.

                           (xxxii)  The  Company  has  received  from the Israel
Securities  Authority an exemption from the  requirement to publish a prospectus
in  Israel  for the  offer  of the  Securities  in the  manner  required  by the
applicable  laws of the State of Israel,  which  exemption was in full force and
effect on the date  hereof  and which  shall be in full  force and effect on the
date of the  Prospectus,  on the date that any  post-effective  amendment to the
Registration Statement shall become effective,  when any supplement or amendment
to the Prospectus is filed with the Commission,  and at each Closing Date. It is
further  understood  that no public  offering (as defined  under the laws of the
State of Israel)  pursuant  to the  Prospectus  will be made within the State of
Israel by the Company.

                           (xxxiii) Each of the Company and the  Subsidiaries is
in material  compliance with all conditions and  requirements  stipulated by the
instruments  of  approval  issued by the  Investment  Center of the  Ministry of
Industry  and Commerce  granted  entitling  it or any of its  operations  to the
status of  "approved  enterprise"  under  Israeli  law and by  Israeli  laws and
regulations relating to such approved enterprise status except as would not have
a Material Adverse Effect. All information  supplied by the Company with respect
to such  applications  was true,  correct and complete in all material  respects
when supplied to the appropriate  authorities.  The Company does not know of any
reason  or  circumstance  that  would  lead to  revocation  of its  status as an
"approved enterprise."

                           (xxxiv)   Neither   the   Company   nor  any  of  its
subsidiaries is in violation of any conditions or requirements stipulated by the
instruments  of  approval  granted  to any of them by the  Office  of the  Chief
Scientist in the  Ministry of Industry & Commerce,  with respect to any research
and development grants given to it by such office, which violation, individually
or in the aggregate, would have a Material Adverse Effect. The Company qualifies
as  an  "Industrial   Company"   within  the  definition  of  the  Law  for  the
Encouragement of Industry (Taxes), 1969, of the State of Israel.

                           (xxxv) Except for Israeli  stamp duty,  which will be
paid by the Company on the Securities being sold by them, no transfer tax, stamp
duty or similar tax is payable by or on behalf of the Underwriters in connection
with:  (i) the issuance by the Company of the  Securities;  (ii) the purchase by
the  Underwriters of the Securities from the Company;  (iii) the consummation by
the Company of any of its obligations under this Agreement; or (iv) assuming the
Underwriters are not subject to taxation in Israel,  resale of the Securities by
the Underwriters in connection with the distribution contemplated hereby.

                           (xxxvi)  The   Company   has  duly  and   irrevocably
appointed Commtouch Software Inc., a corporation organized under the laws of the
State of  California,  as its agent to receive  service of process in any action
against it in any United  States  federal or state


                                       10
<PAGE>

court  arising  out  of  or  in  connection  with  the  this  Agreement  or  the
transactions contemplated hereby.

                           (xxxvii) The documents  incorporated  by reference in
the  Prospectus,  at the  time  they  were  or  hereafter  are  filed  with  the
Commission,  complied or when so filed will  comply,  as the case may be, in all
material respects with the requirements of the Securities  Exchange Act of 1934,
as amended, and the rules and regulations promulgated thereunder, and, when read
together and with the other  information in the Prospectus and as such documents
may be modified or superseded by the Prospectus, did not and will not contain an
untrue statement of a material fact or omit to state a material fact required to
be stated therein or necessary in order to make the statements  therein,  in the
light of the circumstances under which they were or are made, not misleading.

                  (b) Each Selling  Shareholder  represents and warrants to, and
agrees with, the several Underwriters as follows:

                           (i)  Such  Selling  Shareholder  is  the  record  and
beneficial owner of, and has, and on the First Closing Date will have, valid and
marketable title to the Securities to be sold by such Selling Shareholder,  free
and  clear  of  all  security   interests,   claims,   liens,   restrictions  on
transferability,  legends,  proxies,  equities or other  encumbrances;  and upon
delivery of and payment for such Securities hereunder,  the several Underwriters
will acquire valid and marketable title thereto,  free and clear of any security
interests,  claims, liens,  restrictions on transferability,  legends,  proxies,
equities  or  other  encumbrances.  Such  Selling  Shareholder  is  selling  the
Securities to be sold by such Selling Shareholder for such Selling Shareholder's
own account and is not selling such Securities,  directly or indirectly, for the
benefit of the  Company,  and no part of the  proceeds of such sale  received by
such Selling  Shareholder  will inure,  either  directly or  indirectly,  to the
benefit of the Company other than as described in the Registration Statement and
Prospectus.

                           (ii) Such Selling  Shareholder  has duly  authorized,
executed and delivered a Custody Agreement ("Custody Agreement"),  which Custody
Agreement  is a valid and binding  obligation  of such Selling  Shareholder,  to
Norwest Bank Minnesota,  N.A., as Custodian (the  "Custodian");  pursuant to the
Custody  Agreement  the  Selling  Shareholder  has  placed in  custody  with the
Custodian, for delivery under this Agreement, the certificates  representing the
Securities to be sold by such Selling Shareholder;  such certificates  represent
validly issued,  outstanding,  fully paid and nonassessable Ordinary Shares; and
such certificates were duly and properly endorsed in blank for transfer, or were
accompanied  by all documents  duly and properly  executed that are necessary to
validate the transfer of title thereto, to the Underwriters, free of any legend,
restriction on transferability, proxy, lien or claim, whatsoever.

                           (iii)  Such  Selling  Shareholder  has the  power and
authority  to enter into this  Agreement  and to sell,  transfer and deliver the
Securities to be sold by such Selling Shareholder;  and such Selling Shareholder
has duly authorized, executed and delivered to Allan Barkat, as attorney-in-fact
(the  "Attorney-in-Fact"),  an  irrevocable  power  of  attorney


                                       11
<PAGE>

(a "Power of Attorney") authorizing and directing the Attorney-in-Fact to effect
the sale and delivery of the Securities being sold by such Selling  Shareholder,
to  enter  into  this  Agreement  and to take all such  other  action  as may be
necessary hereunder.

                           (iv) This  Agreement,  the Custody  Agreement and the
Power of Attorney have each been duly  authorized,  executed and delivered by or
on behalf of such Selling  Shareholder and each  constitutes a valid and binding
agreement of such Selling Shareholder, enforceable in accordance with its terms,
except as rights to indemnity  hereunder or thereunder may be limited by federal
or state  securities  laws and except as such  enforceability  may be limited by
bankruptcy, insolvency, reorganization or laws affecting the rights of creditors
generally  and  subject  to general  principles  of equity.  The  execution  and
delivery of this Agreement,  the Custody Agreement and the Power of Attorney and
the  performance  of the terms  hereof and thereof and the  consummation  of the
transactions  herein  and  therein  contemplated  will not result in a breach or
violation of any of the terms and  provisions of, or constitute a default under,
any agreement or instrument to which such Selling  Shareholder  is a party or by
which such Selling Shareholder is bound, or any law, regulation, order or decree
applicable to such Selling Shareholder;  no consent, approval,  authorization or
order of, or filing with, any court or  governmental  agency or body is required
for the  execution,  delivery and  performance  of this  Agreement,  the Custody
Agreement and the Power of Attorney or for the  consummation of the transactions
contemplated hereby and thereby, including the sale of the Securities being sold
by such  Selling  Shareholder,  except such as may be required  under the Act or
state securities laws or blue sky laws.

                           (v) Such Selling  Shareholder has not distributed and
will not distribute any prospectus or other offering material in connection with
the offering and sale of the Securities other than any Preliminary Prospectus or
the Prospectus or other materials permitted by the Act to be distributed by such
Selling Shareholder.

                           (vi)  Such  Selling   Shareholder  has  reviewed  the
Registration Statement and the
Prospectus  and to the best  knowledge of such Selling  Shareholder  neither the
Registration  Statement nor the  Prospectus  contains any untrue  statement of a
material fact or omits to state any material fact required to be stated  therein
or  necessary  to make the  statements  therein not  misleading  regarding  such
Selling Shareholder, the other Selling Shareholders, the Company or otherwise.

                           (vii)  To  the  best   knowledge   of  such   Selling
Shareholder,  the  representations  and  warranties of the Company  contained in
paragraph (a) of this Section 2 are true and correct.

                  (c) Any  certificate  signed by any officer of the Company and
delivered  to  you  or to  counsel  for  the  Underwriters  shall  be  deemed  a
representation and warranty by the Company to each Underwriter as to the matters
covered  thereby;  any  certificate  signed  by  or on  behalf  of  any  Selling
Shareholders  as such and  delivered  to you or to counsel for the


                                       12
<PAGE>

Underwriters  shall be deemed a  representation  and  warranty  by such  Selling
Shareholder to each Underwriter as to the matters covered thereby.

                  3. Purchase, Sale and Delivery of Securities.

                  On the basis of the representations, warranties and agreements
herein contained,  but subject to the terms and conditions herein set forth, the
Company  agrees  to issue  and sell  1,669,000  Firm  Shares,  and each  Selling
Shareholder agrees, severally and not jointly, to sell the number of Firm Shares
set forth opposite the name of such Selling Shareholder on Schedule I hereto, to
the  several  Underwriters,  and  each  Underwriter  agrees,  severally  and not
jointly, to purchase from the Company and the Selling Shareholders the number of
Firm  Shares set forth  opposite  the name of such  Underwriter  in  Schedule II
hereto.  The  purchase  price for each Firm Share shall be  **[$__________]  per
share. The obligation of each Underwriter to each of the Company and the Selling
Shareholders  shall be to  purchase  from each of the  Company  and the  Selling
Shareholders  that number of Firm Shares (to be adjusted by the  Representatives
to avoid  fractional  shares) which represents the same proportion of the number
of Firm Shares to be sold by each of the  Company  and the Selling  Shareholders
pursuant to this  Agreement as the number of Firm Shares set forth  opposite the
name of such Underwriter in Schedule II hereto represents to the total number of
Firm Shares to be purchased by all Underwriters  pursuant to this Agreement.  In
making  this  Agreement,  each  Underwriter  is  contracting  severally  and not
jointly;  except as provided in paragraph (c) of this Section 3 and in Section 8
hereof,  the agreement of each  Underwriter  is to purchase only the  respective
number of Firm Shares specified in Schedule II.

                  The Firm  Shares  will be  delivered  by the  Company  and the
Custodian to you for the accounts of the several Underwriters against payment of
the purchase  price  therefor by certified or official  bank check or other next
day funds payable to the order of the Company or the Custodian,  as appropriate,
at  the  offices  of  U.S.  Bancorp  Piper  Jaffray,  222  South  Ninth  Street,
Minneapolis, Minnesota, or such other location as may be mutually acceptable, at
9:00 a.m.  Central  time on the  third  (or if the  Securities  are  priced,  as
contemplated by Rule 15c6-1(c)  under the Exchange Act, after 4:30 p.m.  Eastern
time, the fourth) full business day following the date hereof,  or at such other
time and date as you and the Company determine  pursuant to Rule 15c6-1(a) under
the Exchange Act, such time and date of delivery being herein referred to as the
"First  Closing  Date." If the  Representatives  so elect,  delivery of the Firm
Shares may be made by credit  through full fast  transfer to the accounts at The
Depository  Trust  Company  designated  by  the  Representatives.   Certificates
representing the Firm Shares,  in definitive form and in such  denominations and
registered  in such names as you may request  upon at least two  business  days'
prior  notice to the  Company  and the  Custodian,  will be made  available  for
checking and packaging not later than 10:30 a.m.,  Central time, on the business
day next  preceding the First Closing Date at the offices of U.S.  Bancorp Piper
Jaffray, 222 South Ninth Street, Minneapolis,  Minnesota, or such other location
as may be mutually acceptable.

                  On the basis of the representations, warranties and agreements
herein contained,  but subject to the terms and conditions herein set forth, the
Company hereby


                                       13
<PAGE>

grants to the several  Underwriters  an option to purchase all or any portion of
the Option Shares at the same purchase price as the Firm Shares,  for use solely
in  covering  any  over-allotments  made by the  Underwriters  in the  sale  and
distribution of the Firm Shares.  The option granted  hereunder may be exercised
at any time (but not more than once) within 30 days after the effective  date of
this Agreement upon notice (confirmed in writing) by the  Representatives to the
Company  setting  forth the  aggregate  number of Option  Shares as to which the
several  Underwriters are exercising the option,  the names and denominations in
which the  certificates  for the Option Shares are to be registered and the date
and time, as determined by you, when the Option Shares are to be delivered, such
time and date being  herein  referred  to as the  "Second  Closing"  and "Second
Closing Date",  respectively;  provided,  however,  that the Second Closing Date
shall not be earlier  than the First  Closing  Date nor earlier  than the second
business day after the date on which the option shall have been  exercised.  The
number of Option  Shares to be purchased by each  Underwriter  shall be the same
percentage  of the total number of Option  Shares to be purchased by the several
Underwriters as the number of Firm Shares to be purchased by such Underwriter is
of the total number of Firm Shares to be purchased by the several  Underwriters,
as adjusted by the  Representatives in such manner as the  Representatives  deem
advisable  to  avoid  fractional  shares.  No  Option  Shares  shall be sold and
delivered unless the Firm Shares  previously have been, or  simultaneously  are,
sold and delivered.

                  The Option  Shares will be delivered by the Company to you for
the accounts of the several  Underwriters  against payment of the purchase price
therefor by certified or official  bank check or other next day funds payable to
the order of the Company at the offices of U.S. Bancorp Piper Jaffray, 222 South
Ninth Street, Minneapolis,  Minnesota, or such other location as may be mutually
acceptable  at 9:00 a.m.,  Central  time,  on the Second  Closing  Date.  If the
Representatives  so elect,  delivery of the Option  Shares may be made by credit
through  full fast  transfer to the  accounts at The  Depository  Trust  Company
designated by the Representatives.  Certificates  representing the Option Shares
in definitive form and in such denominations and registered in such names as you
have set forth in your notice of option  exercise,  will be made  available  for
checking and packaging not later than 10:30 a.m.,  Central time, on the business
day next preceding the Second  Closing Date at the office of U.S.  Bancorp Piper
Jaffray, 222 South Ninth Street, Minneapolis,  Minnesota, or such other location
as may be mutually acceptable.

                  It  is   understood   that  you,   individually   and  not  as
Representatives of the several Underwriters, may (but shall not be obligated to)
make  payment  to the  Company  or the  Selling  Shareholders,  on behalf of any
Underwriter  for the  Securities to be purchased by such  Underwriter.  Any such
payment by you shall not relieve any such  Underwriter of any of its obligations
hereunder.  Nothing herein contained shall constitute any of the Underwriters an
unincorporated   association   or  partner  with  the  Company  or  any  Selling
Shareholder.

                  Notwithstanding   anything   else  in  this   Agreement,   the
Underwriters shall not solicit offers to purchase Securities in Israel from more
than 35 solicitees who are Israeli subjects, other than Accredited Investors (as
described  in  Section  15(d)  of the  Israel  Securities  Law -  1968),  in the
aggregate  and will  obtain  confirmation  from  such  solicitees


                                       14
<PAGE>

that they are purchasing  such  Securities for investment  purposes only and not
with a view toward  distribution  or sale.  On or before the date two days after
the Closing Date, the  Underwriters  shall furnish the Company,  its counsel and
the Securities  Authority of the State of Israel (the "ISA") with a list of such
solicitees,  if any (including  their name and  addresses),  so as to enable the
Company to comply with the terms of the exemption issued by the ISA.

                  4. Covenants

                  (a)  The  Company   covenants  and  agrees  with  the  several
Underwriters as follows:

                           (i) If the  Registration  Statement  has not  already
been declared effective by the Commission, the Company will use its best efforts
to cause the Registration Statement and any post-effective amendments thereto to
become  effective as promptly as possible;  the Company will notify you promptly
of the time when the Registration  Statement or any post-effective  amendment to
the  Registration  Statement  has  become  effective  or any  supplement  to the
Prospectus (including any term sheet within the meaning of Rule 434 of the Rules
and  Regulations)  has been filed and of any request by the  Commission  for any
amendment or  supplement  to the  Registration  Statement or the  Prospectus  or
additional  information;  if the Company has elected to rely on Rule 430A of the
Rules and  Regulations,  the Company will prepare and file a Prospectus (or term
sheet  within the meaning of Rule 434 of the Rules and  Regulations)  containing
the  information  omitted  therefrom  pursuant  to Rule  430A of the  Rules  and
Regulations  with  the  Commission  within  the time  period  required  by,  and
otherwise in accordance  with the provisions of, Rules 424(b),  430A and 434, if
applicable,  of the Rules and  Regulations;  if the  Company has elected to rely
upon  Rule  462(b)  of the Rules and  Regulations  to  increase  the size of the
offering  registered  under  the  Act,  the  Company  will  prepare  and  file a
registration  statement with respect to such increase with the Commission within
the time period required by, and otherwise in accordance with the provisions of,
Rule 462(b);  the Company will  prepare and file with the  Commission,  promptly
upon your request,  any amendments or supplements to the Registration  Statement
or the  Prospectus  (including  any term sheet within the meaning of Rule 434 of
the Rules and Regulations) that, in your opinion,  may be necessary or advisable
in connection with the distribution of the Securities by the  Underwriters;  and
the  Company  will not file any  amendment  or  supplement  to the  Registration
Statement or Prospectus (including any term sheet within the meaning of Rule 434
of the Rules and Regulations) to which you shall reasonably  object by notice to
the Company  after having been  furnished a copy a reasonable  time prior to the
filing.

                           (ii) The Company will advise you,  promptly  after it
shall  receive  notice or  obtain  knowledge  thereof,  of the  issuance  by the
Commission the ISA, or any Israeli or other foreign  regulatory body of any stop
order  suspending  the  effectiveness  of  the  Registration  Statement,  of the
suspension of the  qualification  of the  Securities for offering or sale in any
jurisdiction, or of the initiation or threatening of any proceeding for any such
purpose;  and the Company will  promptly use its best efforts to (i) prevent the
issuance  of any


                                       15
<PAGE>

stop order or to obtain its withdrawal if such a stop order should be issued and
(ii) maintain in effect the exemption  granted by the ISA and, if such exemption
shall at any time not be effective,  to obtain the reinstatement  thereof at the
earliest possible moment.

                           (iii)  Within  the  time  during  which a  prospectus
(including  any term  sheet  within  the  meaning  of Rule 434 of the  Rules and
Regulations)  relating to the  Securities is required to be delivered  under the
Act, the Company will comply as far as it is able with all requirements  imposed
upon  it by the  Act,  as now  and  hereafter  amended,  and  by the  Rules  and
Regulations,  as from time to time in force,  so far as  necessary to permit the
continuance  of sales of or dealings in the  Securities as  contemplated  by the
provisions hereof and the Prospectus.  If during such period any event occurs as
a result of which in the  opinion of counsel  for the  Company or of counsel for
the  Underwriters the Prospectus would include an untrue statement of a material
fact or omit to state a material fact necessary to make the statements  therein,
in the light of the circumstances  then existing,  not misleading,  or if during
such  period it is in the  opinion of counsel for the Company of counsel for the
Underwriters  necessary to amend the  Registration  Statement or supplement  the
Prospectus to comply with the Act, the Company will promptly notify you and will
forthwith amend the Registration  Statement or supplement the Prospectus (at the
expense of the  Company) so as to correct  such  statement or omission or effect
such compliance.

                           (iv) The Company will use its best efforts to qualify
the Securities for sale under the securities laws of such  jurisdictions  as you
reasonably  designate and to continue such  qualifications  in effect so long as
required for the  distribution of the Securities,  except that the Company shall
not be required in connection  therewith to qualify as a foreign  corporation or
to execute a general  consent to  service of process in any state.  The  Company
will, from time to time,  prepare and file such statements,  reports,  and other
documents as are or may be required to continue  such  qualifications  in effect
for so long a period  as you may  reasonably  request  for  distribution  of the
Securities.

                           (v) The  Company  will  furnish  to the  Underwriters
copies of the  Registration  Statement  (three of which  will be signed and will
include all exhibits),  each  Preliminary  Prospectus,  the Prospectus,  and all
amendments and supplements  (including any term sheet within the meaning of Rule
434 of the Rules and  Regulations)  to such  documents,  in each case as soon as
available  and in such  quantities  as you  may  from  time  to time  reasonably
request.  Prior to the filing  thereof  with the  Commission,  the Company  will
submit to you, for your information,  a copy of any post-effective  amendment to
the  Registration  Statement and any supplement to the Prospectus or any amended
prospectus proposed to be filed.

                           (vi)  During a period of five years  commencing  with
the date  hereof,  the  Company  will (i)  submit  to the  Commission  quarterly
reports,   which  will  include  unaudited  quarterly   consolidated   financial
information,  on Form 6-K for the first three  quarters of each fiscal year, and
file its annual  report on Form 20-F  within the time  period  prescribed  under
Section 13 of the Exchange  Act for the filing by domestic  issuers of quarterly
reports on Form 10-Q and annual  reports  on Form  10-K,  respectively  and


                                       16
<PAGE>

(ii)  furnish to you,  and to each  Underwriter  who may so request in  writing,
copies of all periodic and special  reports  furnished  to  shareholders  of the
Company and of all information,  documents and reports filed with the Commission
(including  the Report on Form SR required by Rule 463 of the  Commission  under
the Securities Act), the Nasdaq National  Market,  the NASD, or the ISA. Reports
to the ISA may be furnished to you and to any such Underwriter in Hebrew if such
reports are not available in English.

                           (vii) The Company  will make  generally  available to
its security holders as soon as practicable,  but in any event not later than 15
months  after the end of the  Company's  current  fiscal  quarter,  an  earnings
statement (which need not be audited) covering a 12-month period beginning after
the  effective  date  of the  Registration  Statement  that  shall  satisfy  the
provisions  of  Section  11(a)  of  the  Act  and  Rule  158 of  the  Rules  and
Regulations.

                           (viii) The Company,  whether or not the  transactions
contemplated  hereunder  are  consummated  or this  Agreement is prevented  from
becoming effective under the provisions of Section 9(a) hereof or is terminated,
will  pay or  cause  to be  paid  (A) all  expenses  (including  transfer  taxes
allocated  to the  respective  transferees)  incurred  in  connection  with  the
delivery  to the  Underwriters  of the  Securities,  (B) all  expenses  and fees
(including,  without limitation,  fees and expenses of the Company's accountants
and counsel but, except as otherwise  provided below,  not including fees of the
Underwriters'  counsel) in connection with the  preparation,  printing,  filing,
delivery,  and shipping of the Registration  Statement  (including the financial
statements therein and all amendments,  schedules,  and exhibits  thereto),  the
Securities,  each  Preliminary  Prospectus,  the  Prospectus,  and any amendment
thereof or supplement thereto, and the printing,  delivery, and shipping of this
Agreement and other underwriting  documents,  including Blue Sky Memoranda,  (C)
all filing fees and fees and disbursements of the Underwriters' counsel incurred
in connection with the  qualification of the Securities for offering and sale by
the  Underwriters  or by dealers  under the  securities  or blue sky laws of the
states and other  jurisdictions  which you shall  designate in  accordance  with
Section  4(d)  hereof,  (D) the  fees  and  expenses  of any  transfer  agent or
registrar,  (E) the filing fees  incident to any required  review by the NASD of
the terms of the sale of the  Securities,  (F) listing fees, if any, and (G) all
other  costs  and  expenses  incident  to the  performance  of  its  obligations
hereunder that are not otherwise  specifically  provided for herein. If the sale
of the Securities  provided for herein is not consummated by reason of action by
the Company  pursuant to Section 9(a) hereof which  prevents this Agreement from
becoming  effective,  or by reason of any  failure,  refusal or inability on the
part of the Company or the Selling  Shareholders  to perform  any  agreement  on
their part to be performed,  or because any other condition of the Underwriters'
obligations  hereunder  required to be  fulfilled  by the Company or the Selling
Shareholders   is  not  fulfilled,   the  Company  will  reimburse  the  several
Underwriters   for  all   out-of-pocket   disbursements   (including   fees  and
disbursements of counsel)  incurred by the Underwriters in connection with their
investigation,   preparing  to  market  and  marketing  the   Securities  or  in
contemplation of performing their obligations  hereunder.  The Company shall not
in any  event be  liable  to any of the  Underwriters  for  loss of  anticipated
profits from the transactions covered by this Agreement.


                                       17
<PAGE>

                           (ix) The Company will apply the net proceeds from the
sale of the  Securities to be sold by it hereunder for the purposes set forth in
the Prospectus  and will file such reports with the  Commission  with respect to
the sale of the Securities and the application of the proceeds  therefrom as may
be required in accordance with Rule 463 of the Rules and Regulations.

                           (x) The Company will not,  without your prior written
consent,  for a period of 90 days after the  commencement of the public offering
of the  Securities by the  Underwriters  (the "Lock-Up  Period") offer for sale,
sell,  contract to sell,  grant any option for the sale of or otherwise issue or
dispose  of  any  Ordinary  Shares  or  any  securities   convertible   into  or
exchangeable  for, or any  options or rights to  purchase  or acquire,  Ordinary
Shares, except to the Underwriters pursuant to this Agreement and except for the
issuance of options  pursuant to the Company's 1996 CSI Stock Option Plan,  1999
Israeli Share Option Plan, 1999 Nonemployee Directors Plan and the 1999 Employee
Stock  Purchase  Plan (each as described in the  Registration  Statement and the
Prospectus)  (the  "Plans")  and  pursuant to the  exercise of stock  options or
warrants  outstanding  on the date hereof;  provided,  that no such option shall
vest and become  exercisable prior to the end of the Lock-Up Period. The Company
agrees not to  accelerate  the  vesting of any option or warrant or the lapse of
any repurchase right prior to the expiration of the Lock-Up Period.

                           (xi) The Company either has caused to be delivered to
you or will  cause to be  delivered  to you prior to the  effective  date of the
Registration  Statement  a letter  (the  "Lock-Up  Agreement")  from each of the
Selling  Shareholders  stating that such person  agrees  that,  from the date of
execution of this  Agreement  and  continuing  to and including the date 90 days
after  the date of the  Prospectus,  he or she will not  publicly  or  privately
announce  any  intention  to, will not allow any  affiliate  or  subsidiary,  if
applicable,  to, and will not itself,  without the prior written consent of U.S.
Bancorp Piper Jaffray on behalf of the Underwriters,  (i) offer,  pledge,  sell,
offer to sell,  contract  to sell,  sell any  option or  contract  to  purchase,
purchase any option to sell, grant any option, right or warrant to purchase,  or
otherwise transfer or dispose of, directly or indirectly, any Ordinary Shares or
any securities  convertible  into, or exercisable or exchangeable  for, Ordinary
Shares, or (ii) enter into any swap or other agreement that transfers,  in whole
or in part, any of the economic consequences of ownership of any Ordinary Shares
or any securities convertible into, or exercisable or exchangeable for, Ordinary
Shares (whether any such transaction described in clause (i) or (ii) above is to
be settled by delivery of Ordinary Shares or such other  securities,  in cash or
otherwise),  in each case,  beneficially owned (within the meaning of Rule 13d-3
under the Securities  Exchange Act of 1934, as amended) or otherwise  controlled
by the shareholder on the date of the Lock-Up Agreement or thereafter  acquired;
provided,  however,  that, if the shareholder is an individual,  the shareholder
may,  without the prior written consent of U.S.  Bancorp Piper Jaffray on behalf
of the  Underwriters,  transfer  Ordinary  Shares or any securities  convertible
into, or exercisable or exchangeable  for,  Ordinary Shares either during his or
her lifetime or, on death, by will or intestacy to members of the  shareholder's
immediate  family or to trusts  exclusively  for the  benefit  of members of the
shareholder's  immediate family or in connection with bona fide gifts;  provided
that,  prior  to any such  transfer,  such  transferee  executes  an  agreement,
satisfactory  to U.S.  Bancorp Piper


                                       18
<PAGE>

Jaffray,  pursuant  to which such  transferee  agrees to  receive  and hold such
shares subject to the  provisions of the Lock-Up  Agreement and that there shall
be no further  transfer  except in accordance with the provisions of the Lock-Up
Agreement.  For purposes of this  paragraph,  "Immediate  family" shall mean the
shareholder's spouse, lineal descendant, father, mother, brother or sister.

                           (xii)  The  Company  has not taken and will not take,
directly or  indirectly,  any action  designed to or which might  reasonably  be
expected to cause or result in, or which has constituted,  the  stabilization or
manipulation  of the price of any security of the Company to facilitate the sale
or resale of the  Securities,  and has not effected any sales of Ordinary Shares
which are  required to be disclosed  in response to Item 701 of  Regulation  S-K
under the Act which have not been so disclosed in the Registration Statement.

                           (xiii) The Company will not incur any  liability  for
any  finder's or  broker's  fee or agent's  commission  in  connection  with the
execution and delivery of this Agreement or the consummation of the transactions
contemplated hereby.

                           (xiv) The Company will inform the Florida  Department
of Banking and Finance at any time prior to the consummation of the distribution
of the Securities by the Underwriters if it commences  engaging in business with
the  government  of Cuba or with any person or affiliate  located in Cuba.  Such
information  will be provided within 90 days after the  commencement  thereof or
after a change occurs with respect to previously reported information.

                           (xv) The Company  will use its best efforts to ensure
that it will not become a PFIC to the extent  consistent with its other business
objectives.  If it believes it is a PFIC, the Company will promptly  notify each
U.S. holder of the Ordinary Shares (the "U.S.  Holders") in order to enable U.S.
Holders to consider whether to make a QEF election or a mark to market election.
The Company  will  further  comply  with the  applicable  information  reporting
requirements for U.S. Holders to make such elections.

                           (xvi) The  Company is  familiar  with the  Investment
Company  Act and will  conduct  its  affairs in such a manner to ensure that the
Company  and each of the  Subsidiaries  was not and  will not be an  "investment
company" or a company "controlled" by an "investment company" within the meaning
of the Investment Company Act.

                           (xvii) To the  extent  that,  and for as long as, the
laws of Israel or any other foreign jurisdiction require any permit for approval
by, or exemption of any local authority of the transactions  contemplated hereby
to be legally  permitted  and to remain  effective,  the Company will obtain and
maintain  each such permit,  approval or  exemption  valid and in full force and
effect.

                           (xviii) In any suit (whether in a court in the United
States or any other  jurisdiction)  seeking  enforcement of this  Agreement,  or
provisions of this Agreement,  (i) no defense (other than a procedural  defense)
given or allowed by the laws of any other state or country  shall be  interposed
in any suit,  action or  proceeding  hereon unless such defense is


                                       19
<PAGE>

also given or allowed  by the laws of the State of  Minnesota,  or of the United
States, (ii) if the plaintiffs therein seek a judgment in United States dollars,
the Company will not interpose  any defense or objection to or otherwise  oppose
judgment,  if any, being awarded in such  currency,  and (iii) if the plaintiffs
therein  seek to have any judgment  (or any aspect  thereof)  awarded in foreign
currency linked, for the period from entry of such judgment until actual payment
thereof in full has been made,  to the  changes in the  foreign  currency-United
States  dollar  exchange  rate,  the Company will not  interpose  any defense or
objection to or otherwise oppose inclusion of such linkage in any such judgment.
The  Company  agrees that it will not  initiate or seek to initiate  any action,
suit or proceeding, in Israel or in any other jurisdiction other than the United
States,  seeking  damages or for the  purpose of  obtaining  any  injunction  or
declaratory  judgment  against  the  enforcement  of or a  declaratory  judgment
concerning any alleged breach by the Company of or other claim by you in respect
of, this Agreement or any of your rights under this Agreement, including without
limitation any action,  suit or proceeding  challenging the enforceability of or
seeking to invalidate in any respect the submission by the Company  hereunder to
the  jurisdiction of federal or Minnesota State courts or the designation of the
laws of the State of Minnesota as the law applicable to this Agreement.

                           (xix)  If any  payment  of any  sum  due  under  this
Agreement  from the Company is made to or received  by the  Underwriters  or any
controlling   person  of  any  Underwriter  in  a  currency  other  than  freely
transferable  United States dollars,  whether by judicial judgment or otherwise,
the  obligations of the Company under this Agreement shall be discharged only to
the extent of the net amount of freely  transferable  United States dollars that
the Underwriters or such controlling  persons, as the case may be, in accordance
with normal bank procedures,  are able to lawfully  purchase with such amount of
such other currency.  To the extent that the  Underwriters  or such  controlling
persons are not able to purchase  sufficient  United  States  dollars  with such
amount of such other currency to discharge the obligations of the Company to the
Underwriters  or such  controlling  persons,  as the case may be,  shall  not be
discharged with respect to such  difference,  and any such  undischarged  amount
will be due as a separate  obligation and shall not be affected by payment or of
judgment  being  obtained  for any other  sums due under or in  respect  of this
Agreement.

                           (xx) The Company  will use its best efforts to effect
and maintain the quotation of the Ordinary Shares on the Nasdaq National Market.

                  (b) Each  Selling  Shareholder  covenants  and agrees with the
several Underwriters as follows:

                           (i) Except as otherwise  agreed to by the Company and
the Selling Shareholder, such Selling Shareholder will pay all taxes, if any, on
the  transfer  and sale,  respectively,  of the  Securities  being  sold by such
Selling  Shareholder,  the fees of such Selling  Shareholder's  counsel and such
Selling  Shareholder's  proportionate share (based upon the number of Securities
being  offered  by  such  Selling  Shareholder   pursuant  to  the  Registration
Statement) of all costs and expenses  (except for legal and accounting  expenses


                                       20
<PAGE>

and fees of the registrar and transfer agent)  incurred by the Company  pursuant
to the provisions of Section  4(a)(viii) of this Agreement;  provided,  however,
that each Selling Shareholder  severally agrees to reimburse the Company for any
reimbursement  made by the  Company  to the  Underwriters  pursuant  to  Section
4(a)(viii) hereof to the extent such reimbursement  resulted from the failure or
refusal on the part of such  Selling  Shareholder  to comply  under the terms or
fulfill any of the conditions of this Agreement.

                           (ii) If this  Agreement  shall be  terminated  by the
Underwriters  because of any  failure,  refusal or inability on the part of such
Selling Shareholder to perform any agreement on such Selling  Shareholder's part
to be performed, or because any other condition of the Underwriters' obligations
hereunder required to be fulfilled by such Selling Shareholder is not fulfilled,
such Selling  Shareholder  agrees to reimburse the several  Underwriters for all
out-of-pocket disbursements (including fees and disbursements of counsel for the
Underwriters)   incurred  by  the   Underwriters   in   connection   with  their
investigation,   preparing  to  market  and  marketing  the   Securities  or  in
contemplation of performing their obligations hereunder. The Selling Shareholder
shall  not in any  event  be  liable  to any of the  Underwriters  for  loss  of
anticipated profits from the transactions covered by this Agreement.

                           (iii)  The  Securities  to be sold  by  such  Selling
Shareholder,  represented  by the  certificates  on deposit  with the  Custodian
pursuant to the Custody  Agreement of such Selling  Shareholder,  are subject to
the interest of the several Underwriters and the other Selling Shareholders; the
arrangements  made for such custody are, except as specifically  provided in the
Custody Agreement,  irrevocable; and the obligations of such Selling Shareholder
hereunder  shall not be  terminated,  except as provided in this Agreement or in
the Custody Agreement,  by any act of such Selling Shareholder,  by operation of
law,  whether  by  the  liquidation,  dissolution  or  merger  of  such  Selling
Shareholder,  by the death of such Selling Shareholder,  or by the occurrence of
any other event. If any Selling  Shareholder should liquidate,  dissolve or be a
party to a merger or if any other such event should occur before the delivery of
the Securities  hereunder,  certificates  for the Securities  deposited with the
Custodian  shall be delivered by the Custodian in accordance  with the terms and
conditions  of this  Agreement as if such  liquidation,  dissolution,  merger or
other event had not occurred,  whether or not the Custodian  shall have received
notice thereof.

                           (iv) Selling  Shareholder  has not taken and will not
take,  directly or indirectly,  any action designed to or which might reasonably
be expected to cause or result in  stabilization or manipulation of the price of
any security of the Company to facilitate the sale or resale of the  Securities,
and has not  effected  any sales of Ordinary  Shares  which,  if effected by the
Company, would be required to be disclosed in response to Item 701 of Regulation
S-K.

                           (v) Such Selling Shareholder shall immediately notify
you if any event  occurs,  or of any  change  in  information  relating  to such
Selling  Shareholder  or the  Company  or any new  information  relating  to the
Company or relating to any matter  stated in the  Prospectus  or any  supplement
thereto  (including  any term sheet  within the meaning of


                                       21
<PAGE>

Rule 434 of the Rules and  Regulations),  which  results in the  Prospectus  (as
supplemented)  including an untrue  statement of a material  fact or omitting to
state any material fact  necessary to make the statements  therein,  in light of
the circumstances under which they were made, not misleading.

                           (vi) In any suit  (whether  in a court in the  United
States or any other  jurisdiction)  seeking  enforcement of this  Agreement,  or
provisions of this Agreement,  (i) no defense (other than a procedural  defense)
given or allowed by the laws of any other state or country  shall be  interposed
in any suit,  action or  proceeding  hereon unless such defense is also given or
allowed by the laws of the State of Minnesota or of the United  States,  (ii) if
the  plaintiffs  therein seek a judgment in United States  dollars,  the Selling
Shareholders  will not interpose any defense or objection to or otherwise oppose
judgment,  if any, being awarded in such  currency,  and (iii) if the plaintiffs
therein  seek to have any judgment  (or any aspect  thereof)  awarded in foreign
currency linked, for the period from entry of such judgment until actual payment
thereof in full has been made,  to the  changes in the  foreign  currency-United
States dollar  exchange  rate, the Selling  Shareholders  will not interpose any
defense or  objection to or  otherwise  oppose  inclusion of such linkage in any
such judgment. The Selling Shareholders agrees that it will not initiate or seek
to  initiate  any  action,  suit  or  proceeding,  in  Israel  or in  any  other
jurisdiction other than the United States, seeking damages or for the purpose of
obtaining any injunction or declaratory judgment against the enforcement of or a
declaratory  judgment concerning any alleged breach by the Selling  Shareholders
of or other  claim by you in respect of,  this  Agreement  or any of your rights
under  this  Agreement,   including  without  limitation  any  action,  suit  or
proceeding  challenging  the  enforceability  of or seeking to invalidate in any
respect the submission by the Selling Shareholders hereunder to the jurisdiction
of federal or Minnesota State courts or the designation of the laws of the State
of Minnesota as the law applicable to this Agreement.

         5.       Conditions  of  Underwriters' Obligations. The  obligations of
the several Underwriters  hereunder are subject to the accuracy,  as of the date
hereof and at each of the First Closing Date and the Second  Closing Date (as if
made  at  such  Closing  Date),  of and  compliance  with  all  representations,
warranties and agreements of the Company and the Selling Shareholders  contained
herein, to the performance by the Company and the Selling  Shareholders of their
obligations hereunder and to the following additional conditions:

                  (a) The Registration Statement shall have become effective not
later than 5:00 p.m., Central time, on the date of this Agreement, or such later
time and date as you,  as  Representatives  of the several  Underwriters,  shall
approve  and all filings  required  by Rules 424,  430A and 434 of the Rules and
Regulations   shall  have  been  timely  made;  no  stop  order  suspending  the
effectiveness of the Registration  Statement or any amendment thereof shall have
been issued;  no  proceedings  for the issuance of such an order shall have been
initiated  or  threatened;  and any  request of the  Commission  for  additional
information (to be included in the  Registration  Statement or the Prospectus or
otherwise) shall have been complied with to your satisfaction.


                                       22
<PAGE>

                  (b) The legality and sufficiency of the sale of the Securities
hereunder  and the  validity  and  form  of the  certificates  representing  the
Securities,  all corporate  proceedings and other legal matters  incident to the
foregoing,  and the form of the  Registration  Statement  and of the  Prospectus
(except  as to the  financial  statements  contained  therein),  shall have been
approved at or prior to the Closing  Date by Faegre & Benson LLP,  U.S.  counsel
for  the  Underwriters,   and  Yigal  Arnon  &  Co.,  Israeli  counsel  for  the
Underwriters.

                  (c) No  Underwriter  shall have  advised the Company  that the
Registration Statement or the Prospectus, or any amendment thereof or supplement
thereto  (including  any term sheet  within the meaning of Rule 434 of the Rules
and  Regulations),  contains an untrue statement of fact which, in your opinion,
is material, or omits to state a fact which, in your opinion, is material and is
required to be stated  therein or necessary to make the  statements  therein not
misleading.

                  (d) Except as contemplated  in the  Prospectus,  subsequent to
the  respective  dates as of  which  information  is  given in the  Registration
Statement and the  Prospectus,  neither the Company nor any of its  subsidiaries
shall  have  incurred  any  material  liabilities  or  obligations,   direct  or
contingent,  or entered into any material transactions,  or declared or paid any
dividends  or made  any  distribution  of any kind  with  respect  to its  share
capital;  and there shall not have been any change in the share  capital  (other
than a change in the number of outstanding  Ordinary  Shares due to the issuance
of shares upon the exercise of outstanding options or warrants), or any material
change in the  short-term or long-term  debt of the Company,  or any issuance of
options, warrants, convertible securities or other rights to purchase the equity
securities of the Company or any of its  subsidiaries,  or any material  adverse
change or any  development  involving  a  prospective  material  adverse  change
(whether  or not arising in the  ordinary  course of  business),  in the general
affairs, condition (financial or otherwise),  business, key personnel, property,
prospects,   net  worth  or  results  of  operations  of  the  Company  and  its
subsidiaries,  taken as a whole, that, in your judgment, makes it impractical or
inadvisable  to offer or deliver the  Securities  on the terms and in the manner
contemplated in the Registration Statement or the Prospectus.

                  (e) On each Closing Date,  there shall have been  furnished to
you, as Representatives of the several  Underwriters,  the opinion of McCutchen,
Doyle,  Brown & Enersen,  LLP, U.S. counsel for the Company,  dated such Closing
Date and  addressed  to you,  covering  the matters  set forth in  Schedule  III
hereto.

         In  rendering  such  opinion such counsel may rely (i) as to matters of
law other than California and federal law, upon the opinion or opinions of local
counsel  provided  that the extent of such reliance is specified in such opinion
and that such counsel shall state that such opinion or opinions of local counsel
are  satisfactory  to them and that they believe  they and you are  justified in
relying thereon and (ii) as to matters of fact, to the extent such counsel deems
reasonable  upon  certificates  of officers of the Company and its  subsidiaries
provided that the extent of such reliance is specified in such opinion.


                                       23
<PAGE>
                  (f) On each Closing Date,  there shall have been  furnished to
you, as  Representatives of the several  Underwriters,  the opinion of Naschitz,
Brandes & Co,  Israeli  counsel for the  Company,  dated such  Closing  Date and
addressed to you, covering the matters set forth in Schedule IV hereto.

         In  rendering  such  opinion such counsel may rely (i) as to matters of
law other than  Israeli  law,  upon the  opinion or  opinions  of local  counsel
provided  that the extent of such reliance is specified in such opinion and that
such  counsel  shall state that such  opinion or  opinions of local  counsel are
satisfactory to them and that they believe they and you are Justified in relying
thereon  and (ii) as to  matters  of fact,  to the  extent  such  counsel  deems
reasonable  upon  certificates  of officers of the Company and its  subsidiaries
provided that the extent of such reliance is specified in such opinion.

                  (g) On each Closing Date,  there shall have been  furnished to
you, as  Representatives of the several  Underwriters,  such opinion or opinions
from Faegre & Benson LLP, U.S. counsel for the several  Underwriters,  and Yigal
Arnon & Co.,  Israeli counsel for the several  Underwriters,  dated such Closing
Date and addressed to you, with respect to the validity of the  Securities,  the
Registration  Statement,  the  Prospectus  and  other  related  matters  as  you
reasonably  may request,  and such counsel  shall have  received such papers and
information as they request to enable them to pass upon such matters.

                  (h) On  each  Closing  Date  you,  as  Representatives  of the
several  Underwriters,  shall have received a letter of Kost,  Forer & Gabbay (a
member of Ernst & Young International), dated such Closing Date and addressed to
you:

                           (i)  confirming  that  they  are  independent  public
accountants  within  the  meaning  of the  Act and are in  compliance  with  the
applicable requirements relating to the qualifications of accountants under Rule
2-01 of Regulation S-X of the Commission,

                           (ii)  stating  that,  in their  opinion,  the audited
consolidated financial statements and schedules examined by them and included in
the  Registration  Statement and the  Prospectus  comply in form in all material
respects with the applicable  accounting  requirements  of the Act and the Rules
and Regulations,

                           (iii)  stating,  as of the date of such  letter  (or,
with respect to matters involving  changes or developments  since the respective
dates as of which specified financial information is given in the Prospectus, as
of a date not more  than  five  days  prior  to the  date of such  letter),  the
conclusions and findings of said firm with respect to the financial  information
and other matters covered by its letter delivered to you  concurrently  with the
execution of this Agreement,  and the effect of the letter so to be delivered on
such Closing Date shall be to confirm the  conclusions and findings set forth in
such prior letter,

                           (iv) stating  that,  at a specific date not more than
five business  days prior to the date of such letter,  there were any changes in
the share  capital  or  long-term  debt of the  Company or any  decrease  in net
current assets or shareholders' equity of the Company in each case compared with
amounts  shown on the  December  31, 1999  audited  consolidated


                                       24
<PAGE>

balance sheet included in the Registration Statement and the Prospectus,  or for
the period from January 1, 2000 to such specified date there were any decreases,
as compared with the  comparable  period of the prior fiscal  quarter,  in total
sales of services and license  fees,  income  before taxes or total or per share
amounts of net  income of the  Company,  except in all  instances  for  changes,
decreases or increases set forth in such letter,

                           (v)  stating  that  they  have  carried  out  certain
specified  procedures,  not  constituting  an audit,  with  respect  to  certain
amounts, percentages and financial information that are derived from the general
accounting records of the Company and are included in the Registration Statement
and the Prospectus, including the amounts, percentages and financial information
included under the captions "Summary Consolidated Financial and Operating Data,"
"Capitalization,"  "Selected  Consolidated  Financial  and  Operating  Data" and
"Management's  Discussion  and  Analysis of Financial  Condition  and Results of
Operations,"   and  have  compared  such  amounts,   percentages  and  financial
information with such records of the Company and with  information  derived from
such records and have found them to be in agreement,  excluding any questions of
legal interpretation.

                  (i) On each Closing Date,  there shall have been  furnished to
you, as Representatives of the Underwriters,  a certificate,  dated such Closing
Date and  addressed  to you,  signed by the chief  executive  officer and by the
chief financial officer of the Company, to the effect that:

                           (i) The representations and warranties of the Company
in this Agreement are true and correct, in all material respects,  as if made at
and as of  such  Closing  Date,  and  the  Company  has  complied  with  all the
agreements  and  satisfied  all the  conditions  on its part to be  performed or
satisfied at or prior to such Closing Date;

                           (ii) No stop  order or  other  order  suspending  the
effectiveness  of the  Registration  Statement or any  amendment  thereof or the
qualification  of the  Securities  for offering or sale has been issued,  and no
proceeding  for  that  purpose  has  been  instituted  or,  to the best of their
knowledge,  is contemplated  by the Commission or any state or regulatory  body;
and

                           (iii) The signers of said  certificate have carefully
examined the  Registration  Statement  and the  Prospectus,  and any  amendments
thereof or supplements  thereto  (including any term sheet within the meaning of
Rule 434 of the Rules  and  Regulations),  and (A) such  documents  contain  all
statements and information  required to be included  therein,  the  Registration
Statement,  or any amendment thereof, does not contain any untrue statement of a
material fact or omit to state any material  fact required to be stated  therein
or necessary to make the statements therein not misleading,  and the Prospectus,
as amended or  supplemented,  does not include any untrue  statement of material
fact or omit to state a material fact necessary to make the statements  therein,
in light of the  circumstances  under which they were made, not misleading,  (B)
since the effective date of the  Registration  Statement,  there has occurred no
event required to be set forth in an amended or


                                       25
<PAGE>

supplemented  prospectus  which has not been so set forth, (C) subsequent to the
respective dates as of which information is given in the Registration  Statement
and the Prospectus, neither the Company nor any of its subsidiaries has incurred
any material liabilities or obligations,  direct or contingent,  or entered into
any material  transactions,  not in the ordinary course of business, or declared
or paid any dividends or made any  distribution  of any kind with respect to its
share capital, and except as disclosed in the Prospectus, there has not been any
change in the share  capital  (other than a change in the number of  outstanding
shares of Ordinary  Shares due to the  issuance  of shares upon the  exercise of
outstanding  options or warrants),  or any material  change in the short-term or
long-term debt, or any issuance of options, warrants,  convertible securities or
other rights to purchase the equity  securities,  of the Company,  or any of its
subsidiaries,  or any Material  Adverse  Effect or any  development  involving a
prospective   Material  Adverse  Effect,   and  (D)  except  as  stated  in  the
Registration  Statement  and the  Prospectus,  there is not pending,  or, to the
knowledge  of the  Company,  threatened  or  contemplated,  any action,  suit or
proceeding to which the Company or any of its  subsidiaries is a party before or
by any court or governmental agency, authority or body, or any arbitrator, which
might result in any Material Adverse Effect.

                  (j) On each Closing Date,  there shall have been  furnished to
you,  as   Representatives   of  the  several   Underwriters,   the  opinion  of
______________,  counsel for the Selling  Shareholders,  dated such Closing Date
and addressed to you, to the effect that:

                           (i)  Each of the  Selling  Shareholders  is the  sole
record  and  beneficial  owner  of the  Securities  to be sold  by such  Selling
Shareholder  and delivery of the  certificates  for the Securities to be sold by
each Selling  Shareholder  pursuant to this Agreement,  upon payment therefor by
the  Underwriters,  will  pass  marketable  title  to  such  Securities  to  the
Underwriters  and the  Underwriters  will acquire all the rights of such Selling
Shareholder in the Securities (assuming the Underwriters have no knowledge of an
adverse claim), free and clear of any security interests, claims, liens or other
encumbrances.

                           (ii) Each of the Selling  Shareholders  has the power
and  authority  to enter into the Custody  Agreement,  the Power of Attorney and
this  Agreement  and  to  perform  and  discharge  such  Selling   Shareholder's
obligations thereunder and hereunder; and this Agreement, the Custody Agreements
and the Powers of Attorney have been duly and validly  authorized,  executed and
delivered by (or by the  Attorney-in-Fact on behalf of) the Selling Shareholders
and are valid and binding agreements of the Selling Shareholders, enforceable in
accordance with their respective terms (except as rights to indemnity  hereunder
or thereunder may be limited by federal or state  securities  laws and except as
such enforceability may be limited by bankruptcy, insolvency,  reorganization or
similar  laws  affecting  creditors'  rights  generally  and  subject to general
principles of equity).

                           (iii) The execution  and delivery of this  Agreement,
the Custody Agreement and the Power of Attorney and the performance of the terms
hereof and thereof and the consummation of the  transactions  herein and therein
contemplated  will not result in a breach or  violation  of any of the terms and
provisions of, or constitute a default under,  any statute,  rule or regulation,
or any  agreement  or  instrument  known to such  counsel to which


                                       26
<PAGE>

such  Selling  Shareholder  is a party or by which such Selling  Shareholder  is
bound or to which any of its property is subject, any such Selling Shareholder's
charter or by-laws, or any order or decree known to such counsel of any court or
government agency or body having  jurisdiction over such Selling  Shareholder or
any of its respective  properties;  and no consent,  approval,  authorization or
order of, or filing with, any court or  governmental  agency or body is required
for the  execution,  delivery and  performance  of this  Agreement,  the Custody
Agreement and the Power of Attorney or for the  consummation of the transactions
contemplated hereby and thereby, including the sale of the Securities being sold
by such  Selling  Shareholder,  except such as may be required  under the Act or
state securities laws or blue sky laws.

                           (iv) Under the laws of the  jurisdiction  of domicile
of the Selling  Shareholders,  the (i) submission by the Selling Shareholders to
the  jurisdiction  of  any  federal  or  state  court  sitting  in the  City  of
Minneapolis, Minnesota, (ii) waiver, to the fullest extent it may effectively do
so, of any objection which the Selling Shareholders may now or hereafter have to
the laying of venue of any such  proceeding and (iii)  submission by the Selling
Shareholders  to the  exclusive  jurisdiction  of such  courts in any such suit,
action or proceeding, are binding upon the Selling Shareholders and, if properly
brought to the attention of the court or administrative  body in accordance with
the laws of the jurisdiction of domicile of the Selling  Shareholders,  would be
enforceable in any judicial or administrative proceeding in such jurisdiction.

                           (v) Such other matters as you may reasonably request.

                  In  rendering  such  opinion  such  counsel may rely (i) as to
matters of law other than the law of the  jurisdiction(s)  in which such counsel
is licensed to practice,  and federal law, upon the opinion or opinions of local
counsel  provided  that the extent of such reliance is specified in such opinion
and that such counsel shall state that such opinion or opinions of local counsel
are  satisfactory  to them and that they believe  they and you are  justified in
relying thereon and (ii) as to matters of fact, to the extent such counsel deems
reasonable  upon  certificates  of officers of the Company and its  subsidiaries
provided that the extent of such reliance is specified in such opinion.

                  (k) On each Closing Date,  there shall have been  furnished to
you,  as  Representatives  of  the  several   Underwriters,   a  certificate  or
certificates,  dated such Closing Date and  addressed to you,  signed by each of
the Selling Shareholders or such Selling  Shareholder's  Attorney-in-Fact to the
effect that the  representations  and  warranties  of such  Selling  Shareholder
contained  in this  Agreement  are true and correct as if made at and as of such
Closing  Date,  and that such  Selling  Shareholder  has  complied  with all the
agreements and satisfied all the conditions on such Selling  Shareholder's  part
to be performed or satisfied at or prior to such Closing Date.

                  (l)  Subsequent  to the  execution  of this  Agreement  or, if
earlier,  the  dates  as of  which  information  is  given  in the  Registration
Statement (exclusive of any amendment thereto) and the Prospectus  (exclusive of
any  supplement  thereto),  there shall not have been


                                       27
<PAGE>

(i) any change or  decrease  specified  in the letter or letters  referred to in
subparagraph  (h) of this  Section  5 or (ii)  any  change,  or any  development
involving  a  prospective  change  (including  without  limitation  a change  in
management  or  control  of  the  Company),  in or  affecting  the  business  or
properties of the Company and its  subsidiaries the effect of which, in any case
referred  to  in  clause  (i)  or  (ii)  above,  is,  in  the  judgment  of  the
Representatives,   so  material  and  adverse  as  to  make  it  impractical  or
inadvisable  to proceed  with the  offering  or delivery  of the  Securities  as
contemplated in the Registration  Statement (exclusive of any amendment thereof)
and the Prospectus (exclusive of any supplement thereto);

                  (m) At the execution of this Agreement, the Company shall have
furnished to the Representatives  from each Selling Shareholder an executed copy
of the Lock-Up Agreement addressed to the Representatives;

                  (n) The Company has duly given the Nasdaq Market  Notification
Form For Listing of Additional  Shares  required in connection with the offering
to the Nasdaq National Market.

                  (o) The Company  shall have  furnished  to you and counsel for
the Underwriters such additional documents,  certificates and evidence as you or
they may have reasonably requested.

                  All such opinions,  certificates,  letters and other documents
will be in compliance with the provisions  hereof only if they are  satisfactory
in form and substance to you and counsel for the Underwriters.  The Company will
furnish you with such conformed copies of such opinions,  certificates,  letters
and other documents as you shall reasonably request.

         6.       Indemnification and Contribution.

                  (a)  The  Company  and  each  Selling  Shareholder  (excluding
institutional Selling Shareholders (marked with an asterisk on Schedule I) which
do not have a  representative  on the Company's  Board of  Directors)  agrees to
indemnify and hold harmless each Underwriter against any losses, claims, damages
or liabilities,  joint or several, to which such Underwriter may become subject,
under the Act or otherwise  (including in  settlement of any  litigation if such
settlement  is  effected  with the written  consent of the  Company  and/or such
Selling  Shareholders,  as the case may be),  insofar  as such  losses,  claims,
damages or liabilities (or actions in respect thereof) arise out of or are based
upon an  untrue  statement  or  alleged  untrue  statement  of a  material  fact
contained in the Registration Statement,  including the information deemed to be
a part of the Registration  Statement at the time of  effectiveness  pursuant to
Rules  430A  and  434(d)  of the  Rules  and  Regulations,  if  applicable,  any
Preliminary Prospectus,  the Prospectus,  or any amendment or supplement thereto
(including  any term  sheet  within  the  meaning  of Rule 434 of the  Rules and
Regulations), arise out of or are based upon the omission or alleged omission to
state therein a material fact required to be stated therein or necessary to make
the statements therein not misleading, or, in the case of the Company, arise out
of or are based upon any other documents,  communications  or


                                       28
<PAGE>

statements  made by the  Company  or any third  party  with the  consent  of the
Company  that may be  deemed  to  constitute  a  prospectus  or an offer to sell
securities,  and will reimburse each Underwriter for any legal or other expenses
reasonably  incurred by it in connection with investigating or defending against
such loss, claim, damage, liability or action;  provided,  however, that neither
the Company nor any Selling  Shareholder shall be liable in any such case to the
extent that any such loss, claim,  damage,  liability or action arises out of or
is based upon an untrue  statement  or alleged  untrue  statement or omission or
alleged omission made in the Registration Statement, any Preliminary Prospectus,
the  Prospectus,  or any such amendment or  supplement,  in reliance upon and in
conformity with written  information  furnished to the Company by you, or by any
Underwriter through you,  specifically for use in the preparation  thereof;  and
further  provided,  however,  that in no event shall any Selling  Shareholder be
liable  under the  provisions  of this Section 6 for any amount in excess of the
aggregate amount of proceeds such Selling Shareholder  received from the sale of
the Securities pursuant to this Agreement.

                  Each  institutional   Selling   Shareholder  (marked  with  an
asterisk on Schedule I) which does not have a  representative  on the  Company's
Board of  Directors  agrees to  indemnify  and hold  harmless  each  Underwriter
against any losses, claims,  damages or liabilities,  joint or several, to which
such  Underwriter may become subject,  under the Act or otherwise  (including in
settlement  of any  litigation  if such  settlement is effected with the written
consent of such Selling  Shareholders),  insofar as such losses, claims, damages
or liabilities (or actions in respect thereof) arise out of or are based upon an
untrue statement or alleged untrue statement of a material fact contained in the
Registration  Statement,  including the  information  deemed to be a part of the
Registration  Statement at the time of effectiveness  pursuant to Rules 403A and
434(d) of the Rules and Regulations,  if applicable, any Preliminary Prospectus,
the Prospectus, or any amendment or supplement thereto (including any term sheet
within the  meaning of Rule 434 of the Rules and  Regulations),  arise out of or
are based upon the omission or alleged omission to state therein a material fact
required to be stated  therein or necessary to make the  statements  therein not
misleading, in each case to the extent, but only to the extent, that such untrue
statement or alleged untrue  statement or omission or alleged  omission was made
in the Registration Statement,  any Preliminary Prospectus,  the Prospectus,  or
any such  amendment  or  supplement,  in reliance  upon and in  conformity  with
written information  furnished to the Company or any Underwriter by such Selling
Shareholder, and will reimburse each Underwriter for any legal or other expenses
reasonably  incurred by it in connection with investigating or defending against
such loss, claim, damage,  liability or action;  provided,  however,  that in no
event shall any such Selling Shareholders be liable under the provisions of this
Section 6 for any  amount in excess of the  aggregate  amount of  proceeds  such
Selling  Shareholder  received from the sale of the Securities  pursuant to this
Agreement.

                  (b) In addition to their other obligations under Section 6(a),
the Company and each  Selling  Shareholder  agrees that,  as an interim  measure
during  the  pendency  of any  claim,  action,  investigation,  inquiry or other
proceeding  arising  out of or based  upon any  statement  or  omission,  or any
alleged  statement or omission,  described in Section 6(a),  they will reimburse
each  Underwriter  on a monthly  basis for all  reasonable  legal  fees or other


                                       29
<PAGE>

expenses incurred in connection with  investigating or defending any such claim,
action, investigation, inquiry or other proceeding,  notwithstanding the absence
of a  judicial  determination  as to the  propriety  and  enforceability  of the
Company's  and/or  the  Selling   Shareholder's   obligation  to  reimburse  the
Underwriters  for such expenses and the  possibility  that such  payments  might
later be held to have been improper by a court of competent jurisdiction. To the
extent  that any such  interim  reimbursement  payment  is so held to have  been
improper, the Underwriter that received such payment shall promptly return it to
the party or parties that made such payment, together with interest,  compounded
daily,  determined on the basis of the prime rate (or other  commercial  lending
rate for borrowers of the highest credit  standing)  announced from time to time
by Money Rates section of the Wall Street Journal (the "Prime  Rate").  Any such
interim  reimbursement  payments which are not made to an Underwriter  within 30
days of a request for  reimbursement  shall bear interest at the Prime Rate from
the date of such request.  This indemnity  agreement shall be in addition to any
liabilities which the Company or the Selling Shareholders may otherwise have.

                  (c) Each  Underwriter  will  indemnify  and hold  harmless the
Company and each  Selling  Shareholder  against any losses,  claims,  damages or
liabilities  to which  the  Company  and the  Selling  Shareholders  may  become
subject,  under the Act or otherwise (including in settlement of any litigation,
if such  settlement is effected with the written  consent of such  Underwriter),
insofar as such losses,  claims,  damages or liabilities  (or actions in respect
thereof)  arise out of or are based upon an untrue  statement or alleged  untrue
statement  of a material  fact  contained  in the  Registration  Statement,  any
Preliminary Prospectus,  the Prospectus,  or any amendment or supplement thereto
(including  any term  sheet  within  the  meaning  of Rule 434 of the  Rules and
Regulations), or arise out of or are based upon the omission or alleged omission
to state therein a material  fact required to be stated  therein or necessary to
make the statements therein not misleading, in each case to the extent, but only
to the  extent,  that such  untrue  statement  or alleged  untrue  statement  or
omission  or  alleged  omission  was  made in the  Registration  Statement,  any
Preliminary Prospectus,  the Prospectus, or any such amendment or supplement, in
reliance  upon and in  conformity  with  written  information  furnished  to the
Company by you, or by such Underwriter through you,  specifically for use in the
preparation thereof, and will reimburse the Company and the Selling Shareholders
for any legal or other expenses  reasonably  incurred by the Company or any such
Selling  Shareholder in connection with  investigating or defending  against any
such loss, claim, damage, liability or action.

                  (d)  Promptly  after  receipt by an  indemnified  party  under
subsection  (a), (b) or (c) above of notice of the  commencement  of any action,
such  indemnified  party  shall,  if a claim in  respect  thereof  is to be made
against the indemnifying  party under such  subsection,  notify the indemnifying
party in writing of the commencement  thereof; but the omission so to notify the
indemnifying  party shall not relieve the indemnifying  party from any liability
that it may have to any  indemnified  party.  In case any such  action  shall be
brought  against any  indemnified  party,  and it shall notify the  indemnifying
party of the commencement  thereof,  the indemnifying party shall be entitled to
participate  in, and, to the extent that it shall wish,  jointly  with any other
indemnifying  party  similarly  notified,  to assume the defense  thereof,  with
counsel  satisfactory  to such  indemnified  party,  and after  notice  from the


                                       30
<PAGE>

indemnifying  party  to  such  indemnified  party  of the  indemnifying  party's
election so to assume the defense thereof,  the indemnifying  party shall not be
liable to such  indemnified  party under such  subsection for any legal or other
expenses  subsequently incurred by such indemnified party in connection with the
defense thereof other than reasonable costs of investigation; provided, however,
that if, in the sole  judgment of the  Representatives,  it is advisable for the
Underwriters   to  be   represented  as  a  group  by  separate   counsel,   the
Representatives shall have the right to employ a single counsel to represent the
Representatives  and all  Underwriters  who may be subject to liability  arising
from any claim in respect of which  indemnity may be sought by the  Underwriters
under  subsection  (a) or (b) of this  Section 6, in which event the  reasonable
fees and expenses of such separate  counsel  shall be borne by the  indemnifying
party or parties and reimbursed to the  Underwriters  as incurred (in accordance
with the  provisions  of the second  paragraph  in  subsection  (a)  above).  An
indemnifying  party  shall  not be  obligated  under  any  settlement  agreement
relating  to any  action  under  this  Section  6 to which it has not  agreed in
writing.

                  (e) If the  indemnification  provided for in this Section 6 is
unavailable  or  insufficient  to  hold  harmless  an  indemnified  party  under
subsection (a), (b) or (c) above, then each indemnifying  party shall contribute
to the  amount  paid or  payable  by such  indemnified  party as a result of the
losses, claims, damages or liabilities referred to in subsection (a), (b) or (c)
above, (i) in such proportion as is appropriate to reflect the relative benefits
received by the Company  and the  Selling  Shareholders  on the one hand and the
Underwriters  on the other from the  offering of the  Securities  or (ii) if the
allocation  provided by clause (i) above is not permitted by applicable  law, in
such  proportion  as is  appropriate  to reflect not only the relative  benefits
referred to in clause (i) above but also the  relative  fault of the Company and
the Selling  Shareholders  on the one hand and the  Underwriters on the other in
connection  with the  statements  or  omissions  that  resulted in such  losses,
claims,  damages  or  liabilities,  as  well  as any  other  relevant  equitable
considerations.  The relative  benefits  received by the Company and the Selling
Shareholders  on the one hand and the  Underwriters on the other shall be deemed
to be in the same proportion as the total net proceeds from the offering (before
deducting expenses) received by the Company and the Selling Shareholders bear to
the total underwriting  discounts and commissions  received by the Underwriters,
in each case as set forth in the table on the cover page of the Prospectus.  The
relative fault shall be determined by reference to, among other things,  whether
the untrue or alleged  untrue  statement  of a material  fact or the omission or
alleged omission to state a material fact relates to information supplied by the
Company,  the Selling Shareholders or the Underwriters and the parties' relevant
intent,  knowledge,  access to information and opportunity to correct or prevent
such untrue statement or omission. The Company, the Selling Shareholders and the
Underwriters  agree  that it would not be just and  equitable  if  contributions
pursuant to this  subsection


                                       31
<PAGE>

(e) were to be determined by pro rata allocation (even if the Underwriters  were
treated as one entity for such  purpose)  or by any other  method of  allocation
which does not take account of the equitable  considerations  referred to in the
first sentence of this subsection  (e). The amount paid by an indemnified  party
as a result of the losses,  claims,  damages or  liabilities  referred to in the
first  sentence of this  subsection  (e) shall be deemed to include any legal or
other expenses  reasonably incurred by such indemnified party in connection with
investigating  or defending  against any action or claim which is the subject of
this subsection (e).  Notwithstanding  the provisions of this subsection (e), no
Underwriter  shall be required to contribute  any amount in excess of the amount
by which  the  total  price  at  which  the  Securities  underwritten  by it and
distributed  to the public were offered to the public  exceeds the amount of any
damages that such  Underwriter  has otherwise  been required to pay by reason of
such untrue or alleged  untrue  statement  or omission or alleged  omission.  No
person  guilty of  fraudulent  misrepresentation  (within the meaning of Section
11(f) of the Act) shall be entitled to contribution  from any person who was not
guilty of such fraudulent  misrepresentation.  The Underwriters'  obligations in
this subsection (e) to contribute are several in proportion to their  respective
underwriting obligations and not joint.

                  (f)  The   obligations   of  the   Company   and  the  Selling
Shareholders  under this Section 6 shall be in addition to any  liability  which
the Company and the Selling  Shareholders  may otherwise  have and shall extend,
upon the same terms and  conditions,  to each  person,  if any, who controls any
Underwriter  within  the  meaning  of  the  Act;  and  the  obligations  of  the
Underwriters under this Section 6 shall be in addition to any liability that the
respective Underwriters may otherwise have and shall extend, upon the same terms
and conditions,  to each director of the Company (including any person who, with
his  consent,  is  named in the  Registration  Statement  as  about to  become a
director  of the  Company),  to each  officer of the  Company who has signed the
Registration  Statement and to each person,  if any, who controls the Company or
any Selling Shareholder within the meaning of the Act.

         7.       Representations   and   Agreements  to  Survive  Delivery. All
representations,  warranties,  and  agreements  of  the  Company  herein  or  in
certificates  delivered  pursuant  hereto,  and the  agreements  of the  several
Underwriters,  the Company and the Selling  Shareholders  contained in Section 6
hereof,  shall remain  operative and in full force and effect  regardless of any
investigation  made by or on behalf of any Underwriter or any controlling person
thereof,  or the  Company  or any of its  officers,  directors,  or  controlling
persons,  or any Selling  Shareholders  or any controlling  person thereof,  and
shall  survive  delivery  of, and  payment  for,  the  Securities  to and by the
Underwriters hereunder.

         8.       Substitution of Underwriters.

                  (a) If any Underwriter or  Underwriters  shall fail to take up
and pay for the amount of Firm Shares agreed by such Underwriter or Underwriters
to be purchased  hereunder,  upon tender of such Firm Shares in accordance  with
the terms hereof, and the amount of Firm Shares not purchased does not aggregate
more  than 10% of the total  amount of Firm  Shares  set  forth in  Schedule  II
hereto, the remaining Underwriters shall be obligated to take up and pay for (in
proportion to their respective  underwriting  obligations hereunder as set forth
in Schedule II hereto  except as may  otherwise be  determined  by you) the Firm
Shares that the  withdrawing  or  defaulting  Underwriters  agreed but failed to
purchase.

                  (b) If any Underwriter or  Underwriters  shall fall to take up
and pay for the amount of Firm Shares agreed by such Underwriter or Underwriters
to be purchased  hereunder,  upon tender of such Firm Shares in accordance  with
the terms hereof,  and the amount of Firm Shares not purchased  aggregates  more
than 10% of the total amount of Firm


                                       32
<PAGE>

Shares set forth in Schedule II hereto, and arrangements satisfactory to you for
the  purchase of such Firm Shares by other  persons are not made within 36 hours
thereafter, this Agreement shall terminate. In the event of any such termination
neither the Company nor any Selling  Shareholder shall be under any liability to
any Underwriter  (except to the extent provided in Section  4(a)(viii),  Section
4(b)(ii)  and  Section  6  hereof)  nor shall  any  Underwriter  (other  than an
Underwriter  who shall have  failed,  otherwise  than for some reason  permitted
under this  Agreement,  to  purchase  the amount of Firm  Shares  agreed by such
Underwriter to be purchased  hereunder) be under any liability to the Company or
the Selling Shareholders (except to the extent provided in Section 6 hereof).

                  If Firm Shares to which a default  relates are to be purchased
by the  non-defaulting  Underwriters  or by any  other  party  or  parties,  the
Representatives  or the  Company  shall  have the  right to  postpone  the First
Closing Date for not more than seven  business  days in order that the necessary
changes in the Registration  Statement,  Prospectus and any other documents,  as
well as any  other  arrangements,  may be  effected.  As used  herein,  the term
"Underwriter"  includes any person  substituted  for an  Underwriter  under this
Section 8.

         9.       Effective Date of this Agreement and Termination.

                  (a) This  Agreement  shall  become  effective  at 10:00  a.m.,
Central time, on the first full business day following the effective date of the
Registration  Statement, or at such earlier time after the effective time of the
Registration  Statement  as you in  your  discretion  shall  first  release  the
Securities for sale to the public;  provided, that if the Registration Statement
is effective at the time this Agreement is executed, this Agreement shall become
effective  at such  time as you in  your  discretion  shall  first  release  the
Securities  for  sale to the  public.  For the  purpose  of  this  Section,  the
Securities  shall be deemed to have been  released  for sale to the public  upon
release by you of the publication of a newspaper  advertisement relating thereto
or upon release by you of telexes offering the Securities for sale to securities
dealers,  whichever shall first occur. By giving notice as hereinafter specified
before the time this Agreement becomes effective, you, as Representatives of the
several  Underwriters,  or the Company may prevent this  Agreement from becoming
effective  without  liability of any party to any other  party,  except that the
provisions of Section 4(a)(viii), Section 4(b)(ii) and Section 6 hereof shall at
all times be effective.

                  (b) You, as Representatives of the several Underwriters, shall
have the right to  terminate  this  Agreement  by giving  notice as  hereinafter
specified  at any time at or prior to the First  Closing  Date,  and the  option
referred to in Section 3(b), if exercised, may be cancelled at any time prior to
the Second  Closing Date, if (i) the Company shall have failed,  refused or been
unable,  at or prior to such Closing  Date, to perform any agreement on its part
to be  performed  hereunder,  (ii)  any  other  condition  of the  Underwriters'
obligations  hereunder  is not  fulfilled,  (iii)  trading on the New York Stock
Exchange or the American Stock Exchange shall have been wholly  suspended,  (iv)
minimum or maximum  prices for trading shall have been fixed,  or maximum ranges
for  prices  for  securities  shall  have been  required,  on the New York Stock
Exchange or the American  Stock  Exchange,  by such


                                       33
<PAGE>

Exchange  or by order of the  Commission  or any  other  governmental  authority
having  jurisdiction,  (v) a banking  moratorium  shall  have been  declared  by
Federal or New York authorities, or (vi) there has occurred any material adverse
change in the  financial  markets in the United  States or an  outbreak of major
hostilities (or an escalation thereof) in which the United States is involved, a
declaration of war by Congress,  any other substantial national or international
calamity  or any other event or  occurrence  of a similar  character  shall have
occurred since the execution of this Agreement that, in your judgment,  makes it
impractical  or  inadvisable  to proceed with the  completion of the sale of and
payment for the Securities.  Any such termination  shall be without liability of
any party to any other party except that the  provisions of Section  4(a)(viii),
Section 4(b)(ii) and Section 6 hereof shall at all times be effective.

                  (c) If you  elect to  prevent  this  Agreement  from  becoming
effective  or to  terminate  this  Agreement  as provided in this  Section,  the
Company and the Attorney-in-Fact,  on behalf of the Selling Shareholders,  shall
be notified  promptly by you by telephone or telegram,  confirmed by letter.  If
the Company elects to prevent this Agreement  from becoming  effective,  you and
the Attorney-in-Fact,  on behalf of the Selling Shareholders,  shall be notified
by the Company by telephone or telegram, confirmed by letter.

         10.      Default  by One  or  More  of the  Selling Shareholders or the
Company.  If one or more of the  Selling  Shareholders  shall  fail at the First
Closing  Date to sell and deliver the number of  Securities  which such  Selling
Shareholder or Selling  Shareholders  are obligated to sell  hereunder,  and the
remaining  Selling  Shareholders  do not exercise  the right  hereby  granted to
increase,  pro rata or  otherwise,  the number of  Securities to be sold by them
hereunder  to  the  total  number  of  Securities  to be  sold  by  all  Selling
Shareholders  as set  forth in  Schedule  I, then the  Underwriters  may at your
option,  by  notice  from  you to the  Company  and the  non-defaulting  Selling
Shareholders,  either (a) terminate this Agreement  without any liability on the
part of any  non-defaulting  party or (b) elect to purchase the Securities which
the  Company and the  non-defaulting  Selling  Shareholders  have agreed to sell
hereunder.

         In the event of a default by any Selling  Shareholder as referred to in
this  Section  10,  either you or the  Company  or, by joint  action  only,  the
non-defaulting  Selling  Shareholders shall have the right to postpone the First
Closing  Date for a period  not  exceeding  seven  days in order to  effect  any
required  changes in the  Registration  Statement or  Prospectus or in any other
documents or arrangements.

         If the Company shall fail at the First Closing Date to sell and deliver
the number of  Securities  which it is  obligated to sell  hereunder,  then this
Agreement   shall   terminate   without  any   liability  on  the  part  of  any
non-defaulting party.

         No action taken  pursuant to this Section  shall relieve the Company or
any Selling  Shareholders so defaulting  from  liability,  if any, in respect of
such default.

         11.     Information Furnished by Underwriters. The statements set forth
in the last paragraph of the cover page and under the caption "Underwriting," in
any  Preliminary


                                       34
<PAGE>

Prospectus and in the Prospectus constitute the written information furnished by
or on behalf of the Underwriters referred to in Section 2 and Section 6 hereof.

         12.      Notices.    Except   as   otherwise   provided   herein,   all
communications  hereunder  shall be in writing or by  telegraph  and,  if to the
Underwriters,  shall be mailed,  telegraphed or delivered to the Representatives
c/o U.S. Bancorp Piper Jaffray, 222 South Ninth Street,  Minneapolis,  Minnesota
55402, except that notices given to an Underwriter  pursuant to Section 6 hereof
shall be sent to such  Underwriter  at the address  stated in the  Underwriters'
Questionnaire furnished by such Underwriter in connection with this offering; if
to the Company, shall be mailed,  telegraphed or delivered to it at 3945 Freedom
Circle, Santa Clara,  California 95054,  Attention:  James Collins; if to any of
the Selling Shareholders, at the address of the Attorney-in-Fact as set forth in
the Powers of Attorney,  or in each case to such other  address as the person to
be notified may have  requested in writing.  All notices given by telegram shall
be promptly  confirmed by letter.  Any party to this  Agreement may chancre such
address for notices by sending to the parties to this  Agreement  written notice
of a new address for such purpose.

         13.      Persons Entitled to Benefit of Agreement. This Agreement shall
inure to the  benefit  of and be  binding  upon the  parties  hereto  and  their
respective  successors  and assigns and the  controlling  persons,  officers and
directors  referred to in Section 6.  Nothing in this  Agreement  is intended or
shall be construed to give to any other person, firm or corporation any legal or
equitable remedy or claim under or in respect of this Agreement or any provision
herein  contained.  The term  "successors  and assigns" as herein used shall not
include any purchaser,  as such purchaser,  of any of the Securities from any of
the several Underwriters.

         14.      Governing  Law.  This  Agreement  shall  be  governed  by  and
construed in accordance with the laws of the State of Minnesota.

         15.      Agent  for  Service  of  Process;  Jurisdiction.  Each  of the
parties hereto  irrevocably (i) agrees that any legal suit, action or proceeding
arising out of or based upon this  Agreement  or the  transactions  contemplated
hereby  may be  instituted  in any  Federal  or  State  Court  in  the  City  of
Minneapolis, Minnesota, (ii) waives, to the fullest extent it may effectively do
so, any objection  which it may now or hereafter  have to the laying of venue of
any such  proceeding  and (iii)  submits to the exclusive  jurisdiction  of such
courts in any such suit, action or proceeding. The Company hereby designates and
appoints  Commtouch  Software  Inc.  as its  authorized  agent (the  "Authorized
Agent")  upon whom  process may be served in any such  action  arising out of or
based on this  Agreement or the  transactions  contemplated  hereby which may be
instituted  in any  Minnesota  Court by any  Underwriter  or by any  person  who
controls any  Underwriter,  expressly  consents to the  jurisdiction of any such
court in respect of any such  action,  and waives any other  requirements  of or
objections to personal jurisdiction with respect thereto. Such appointment shall
be irrevocable  unless and until a successor  authorized agent acceptable to the
Underwriters in their sole and absolute  discretion shall have been appointed by
the Company.  The Company  represents and warrants that the Authorized Agent has
agreed to act as such agent for  service  at process  and agrees to take any and
all action, including the filing of any and all documents and


                                       35
<PAGE>

instruments,  that may be necessary to continue such  appointment  in full force
and  effect as  aforesaid.  Service  of process  upon the  Authorized  Agent and
written notice of such service to the Company shall be deemed, in every respect,
effective service of process upon the Company.

         16.      Judgment  Currency.  In respect of any judgment or order given
or made for any amount due  hereunder  that is expressed  and paid in a currency
(the  "judgment  currency")  other than United States  dollars,  the Company and
Selling  Shareholders,  as the  case may be,  will  indemnify  each  Underwriter
against any loss  incurred by such  Underwriter  as a result of any variation as
between  (i) the rate of exchange at which the United  States  dollar  amount is
converted  into the judgment  currency for the purpose of such judgment or order
and  (ii) the  rate of  exchange  at which  such  Underwriter  on the date  such
judgment  currency is actually  received by the  Underwriter is able to purchase
United  States  dollars with the amount of the judgment  currency so received by
such  Underwriter.  The  foregoing  indemnity  shall  constitute  a separate and
independent  obligation  of the  Company  and  Selling  Shareholders  and  shall
continue in full force and effect  notwithstanding any such judgment or order as
aforesaid.  The term "rate of exchange"  shall include any premiums and costs of
exchange  payable in connection  with the purchase of or conversion  into United
States dollars.

                            [Signature Page Follows]



                                       36
<PAGE>


         Please sign and return to the Company the enclosed  duplicates  of this
letter  whereupon  this  letter  will  become a binding  agreement  between  the
Company,  the Selling  Shareholders  and the several  Underwriters in accordance
with its terms.

                                               Very truly yours,

                                               COMMTOUCH SOFTWARE LTD.


                                               By ______________________________

                                               Its: ____________________________


                                               SELLING SHAREHOLDERS

                                               By ______________________________
                                                        Attorney-in-Fact


Confirmed as of the date first above mentioned,  on behalf of themselves and the
other several Underwriters named in Schedule II hereto.


U.S. BANCORP PIPER JAFFRAY
THOMAS WEISEL PARTNERS LLC
  INCORPORATED

WARBURG DILLON READ, LLC
  a subsidiary of UBS AG
WILLIAM BLAIR & COMPANY

BY U.S. BANCORP PIPER JAFFRAY

By ______________________________
         Managing Director


                                       37
<PAGE>



                                   SCHEDULE I

                              Selling Shareholders

- -------------------------------------------------------------------------------
                                                              Number of
                                                             Firm Shares
Name                                                          to be Sold
- -------------------------------------------------------------------------------
Israel Growth Fund L.P.                                        400,000
- -------------------------------------------------------------------------------
k.t. Concord Venture Fund (Cayman), L.P.                       331,810
- -------------------------------------------------------------------------------
k.t. Concord Venture Fund (Israel), L.P.                        66,340
- -------------------------------------------------------------------------------
k.t. Concord Venture Advisors (Cayman), L.P.                    2,719
- -------------------------------------------------------------------------------
k.t. Concord Venture Advisors (Israel), L.P.                     531
- -------------------------------------------------------------------------------
Gideon Mantel                                                  100,000
- -------------------------------------------------------------------------------
Amir Lev                                                       100,000
- -------------------------------------------------------------------------------
Isabel Maxwell                                                  50,000
- -------------------------------------------------------------------------------
James E. Collins                                                20,000
- -------------------------------------------------------------------------------
Nahum Sharfman                                                 165,000
- -------------------------------------------------------------------------------
Nomura*                                                         31,000
- -------------------------------------------------------------------------------
Oceanic Bank and Trust Ltd.*                                    31,800
- -------------------------------------------------------------------------------
Rumson Capital, L.L.C.*                                         31,800
- -------------------------------------------------------------------------------




<PAGE>




                                   SCHEDULE II

                              List of Underwriters

Underwriter                                               Number of Firm Shares1
- -----------                                               ----------------------

U.S. Bancorp Piper Jaffray Inc..........................

Thomas Weisel Partners LLC..............................

Warburg Dillon Read, LLC................................

William Blair & Company.................................
                                                         =======================
Total Underwriters (_____)                                     3,000,000
                                                         =======================

- ------------------
1 The  Underwriters may purchase up to an additional  450,000 Option Shares,  to
the extent the option  described in Section 3(b) of the  Agreement is exercised,
in the proportions and in the manner described in the Agreement.


<PAGE>


                                  SCHEDULE III

                  1.  The  U.S.  Subsidiary  is a  corporation  duly  organized,
validly existing and in good standing under the laws of the State of California.
Each of the  Company  and the U.S.  Subsidiary  is duly  qualified  to  transact
business and is in good standing as a foreign  corporation  in each state of the
United States where the character of its activities requires such qualification,
except  where the failure to be so qualified  would not have a Material  Adverse
Effect.  The U.S.  Subsidiary has full  corporate  power and authority to own or
lease its properties and conduct its business as currently  being carried on and
as described in the Registration Statement and the Prospectus.

                  2. All of the issued and  outstanding  shares of capital stock
of the U.S.  Subsidiary  are duly  authorized,  validly  issued,  fully paid and
nonassessable, and are owned of record and beneficially by the Company, free and
clear of any  security  interests,  claims,  liens,  proxies,  equities or other
encumbrances.  There  are  no  outstanding  securities  of the  U.S.  Subsidiary
convertible into or evidencing the right to purchase or subscribe for any shares
of capital stock of the U.S. Subsidiary,  there are no outstanding or authorized
options,  warrants,  rights or any other agreements of any character  obligating
the U.S.  Subsidiary to issue any shares of its capital stock or any  securities
convertible into or evidencing the right to purchase or subscribe for any shares
of such stock. Except as otherwise stated in the Registration  Statement and the
Prospectus,  there are no preemptive  rights or other rights to subscribe for or
to  purchase,  or any  restriction  upon the voting or transfer of, any Ordinary
Shares  pursuant to any agreement or other  instrument  known to us to which the
Company is a party or by which the Company is bound.

                  3. The  Registration  Statement has become effective under the
Securities  Act;  any required  filing of the  Prospectus,  and any  supplements
thereto, pursuant to Rule 424(b) has been made in the manner and within the time
period  required  by Rule  424(b),  or if the Rule 434 Term Sheet was used,  the
required  filing has been made in the manner and within the time period required
by Rule 434; and, to the best of our  knowledge,  no stop order  suspending  the
effectiveness of the Registration  Statement or suspending or preventing the use
of the  Prospectus  is in effect and no  proceedings  for that purpose have been
instituted  or  are  pending  or,  to our  knowledge,  are  contemplated  by the
Commission.

                  4. The Registration Statement and the Prospectus (except as to
the  financial  statements  and  schedules and other  financial  data  contained
therein,  as to which we do not  express  an  opinion)  comply as to form in all
material respects with the requirements of the Securities Act and with the Rules
and  Regulations  thereunder,  and the  Registration  Statement  has  been  duly
executed by the Company.

                  5.  Neither the Company nor either of the  Subsidiaries  is an
"investment  company" or an entity  "controlled"  by an "investment  company" as
such terms are defined in the Investment Company Act.


                                     III-1
<PAGE>

                  6. Neither the issue and sale by the Company of the Securities
as contemplated by the Purchase  Agreement nor the execution and delivery of the
Purchase Agreement by the Company nor the consummation of any other transactions
contemplated by the Purchase Agreement will (with or without the passage of time
and/or  notice)  conflict  with,  or  result  in a  breach  or  violation  of or
constitute a default  under (A) the Articles of  Incorporation  or Bylaws of the
U.S.  Subsidiary,  (B) any  agreement or  instrument  filed as an exhibit to the
Registration  Statement,  or known to us and made available to us in English, to
which the  Company  or either of the  Subsidiaries  is a party or by which it is
bound or to which any of its properties is subject,  (C) any  applicable  United
States federal or state law or regulation,  or (D) to our knowledge,  any order,
writ  injunction  or  decree,  of  any   jurisdiction,   court  or  governmental
instrumentality applicable to the Company or either of the Subsidiaries.

                  7.  The   information   required   to  be  set  forth  in  the
Registration  Statement  in answer to Item 10  (insofar  as if  relates  to such
counsel) of Form F-1 is to the best of our knowledge  accurately  and adequately
set forth  therein in all  material  respects or no  response  is required  with
respect to such Item, and the description of the Company's  option plans and the
options  granted and which may be granted  thereunder,  and the  description  of
options  granted other than under the Company's  option plans,  set forth in the
Prospectus  accurately and fairly presents the information  required to be shown
with respect to said plans and options to the extent  required by the Securities
Act and the Rules and Regulations.

                  8. To the best of our  knowledge,  each of the Company and the
U.S.  Subsidiary  holds, and is operating in compliance in all material respects
with, all franchises,  grants,  authorizations,  licenses,  permits,  easements,
consents,  certificates and orders of any governmental or  self-regulatory  body
required  for the  conduct  of its  business  and all such  franchises,  grants,
authorizations,  licenses,  permits,  easements,  consents,  certifications  and
orders are valid and in full force and effect.

                  9.  To our  knowledge,  there  are no  franchises,  contracts,
leases or other documents  which are of a character  required to be described or
referred to in the  Registration  Statement or the  Prospectus or to be filed as
exhibits to the Registration Statement, which are not described, referred to and
filed as required.

                  10.  To our  knowledge,  there  is no  pending  or  threatened
action,  suit,  investigation  or  proceeding  before any court or  governmental
agency,  authority or body or any arbitrator  involving the Company or either of
the  Subsidiaries or any of their property or assets of a character  required to
be disclosed in the Registration  Statement which is not adequately disclosed in
the Prospectus,  and the statements in the Prospectus  under the heading "Shares
Eligible for Future Sale" are correct in all material respects.

                  11. No  consent,  approval,  waiver,  license,  authorization,
order or other action by or filing with any United States federal or state court
or  governmental  agency,  body or authority is required in connection  with the
execution and delivery by the Company of the Purchase Agreement or for the issue
and sale of the  Securities  by the  Company  or the


                                     III-2
<PAGE>

consummation of any other transactions  contemplated by the Purchase  Agreement,
except for filings and other actions  required  pursuant to the  Securities  Act
and/or the Exchange Act, as amended, and the Rules and Regulations,  required by
the NASD and such as may be required under state  securities or blue sky laws in
connection  with  the  purchase  and  distribution  of  the  Securities  by  the
Underwriters.

                  12. To our knowledge, the Company meets the test to qualify as
a  "foreign  private  issuer"  set forth in Rule 405,  and,  as no other form is
authorized  or  prescribed  for use by the  Company,  the Company  meets all the
conditions necessary for the use of Form F-1.

                  13. The statements  made in the  Prospectus  under the caption
"U.S. Tax  Considerations  Regarding Ordinary Shares Acquired by US. Taxpayers,"
to the extent that they  constitute  matters of law or legal  conclusions,  have
been reviewed by us and fairly reflect the status of such  provisions  purported
to be summarized and are correct in all material aspects.

                  14. To the best of our knowledge, all holders of securities of
the Company  having  rights to the  registration  of Ordinary  Shares,  or other
securities,  because of the filing of the Registration  Statement by the Company
have waived such rights or such rights have been  satisfied,  or have expired by
reason of lapse of time following  notification of the Company's  intent to file
the Registration Statement; to the best of our knowledge, except as described in
the Registration Statement there are no contracts,  agreements or understandings
between the Company and any person granting such person the right to require the
Company to file a registration  statement  under the Securities Act with respect
to any  securities  of the  Company  owned or to be owned by such  person  or to
require the Company to include  such  securities  in the  securities  registered
pursuant to the Registration  Statement or any future registration  statement of
the Company; to our knowledge,  neither the filing of the Registration Statement
nor the offering or sale of the Ordinary  Shares as contemplated by the Purchase
Agreement  gives rise to any rights for or relating to the  registration  of any
Ordinary  Shares  or  other  securities  of the  Company,  except  as  otherwise
described in the Prospectus.

                  15. To the best of our knowledge,  neither the Company nor the
U.S.   Subsidiary  (A)  is  in  violation  of  its  Memorandum  or  Articles  of
Association, or other governing documents, (B) neither the Company nor either of
the  Subsidiaries  is in  default  in any  material  respect,  and no event  has
occurred which,  with notice or lapse of time or both,  would  constitute such a
default, in the due performance or observance of any term, covenant or condition
contained in any  indenture,  mortgage,  deed of trust,  loan agreement or other
agreement  or  instrument  to  which it is a party or by which it is bound or to
which any of its  properties  or assets is subject or (C) is in violation in any
material respect of any law, ordinance,  governmental rule,  regulation or court
decree to which it or its  property  or assets  may be  subject or has failed to
obtain  any  material   license,   permit,   certificate,   franchise  or  other
governmental  authorization or permit necessary to the ownership of its property
or to the conduct of its business, except in the case of clauses (B) and (C) for
such violations or failures that,  individually  or in the aggregate,  would not
have a Material Adverse Effect.


                                     III-3
<PAGE>

                  16. The Purchase Agreement has been duly authorized, executed,
and  delivered  by the  Company  and  constitutes  a valid,  legal  and  binding
obligation of the Company  enforceable  in accordance  with its terms (except as
rights to indemnity hereunder may be limited by federal or state securities laws
and except as such  enforceability  may be limited  by  bankruptcy,  insolvency,
reorganization  or similar laws affecting the rights of creditors  generally and
subject to general  principles of equity) and all corporate  authorizations  and
consents  necessary for the execution and delivery of the Purchase Agreement and
the consummation of the transactions contemplated thereby have been given.

                  17. To the best of our  knowledge,  neither  the  Company  nor
either of the Subsidiaries owns any real property except as otherwise  described
in the  Prospectus;  and all real property and buildings held under lease by the
Company  and the  Subsidiaries  are held by them  under  valid  and  enforceable
leases,  with such  exceptions as are not material and do not interfere with the
use made and proposed to be made of such  property and  buildings by the Company
and the Subsidiaries.

                  18.  To the  best  of our  knowledge,  there  are no  material
contracts,  indentures,  mortgages,  loan  agreements,  notes,  leases  or other
agreements or  instruments  or other  documents  relating to the Company and the
Subsidiaries  which  are not  described  or  referred  to in or  filed  with the
Registration Statement and the Prospectuses;  the statements in the Registration
Statement  and the  Prospectus,  insofar as such  statements  refer to  material
contracts,  indentures,  mortgages,  loan agreements,  notes, leases, employment
agreements  and  other  agreements,  arrangements  or  instruments  to which the
Company or either of the  Subsidiaries is a party,  are accurate and adequate in
all material respects.

                  19.  To the best of our  knowledge,  there  is no  litigation,
action, suit or governmental proceeding or investigation pending,  threatened or
contemplated to which the Company or either of the Subsidiaries is a party or to
which any property of the Company or the Subsidiaries is subject,  or that seeks
to  restrain,  enjoin or prevent the  execution  and  delivery  of the  Purchase
Agreement, or the consummation of the transactions contemplated thereby, or that
questions  the  legality or validity  of any such  transaction  or that seeks to
recover damages or obtain other relief in connection with any such transactions,
or which  would  could be  reasonably  be  expected  to have a Material  Adverse
Effect, if determined adversely to the Company or the Subsidiaries.

                  20. The  statements set forth in the  Prospectuses  describing
U.S.  statutes and regulations and the statements in the Registration  Statement
and the  Prospectuses  with  respect  to  matters  of U.S.  law,  including  the
statements  under the captions  "Risk Factors -- Risks Relating to the Company,"
"Business -- Government  Regulation,"  "Management," "Shares Eligible for Future
Sale," and "U.S. Tax  Considerations  Regarding Ordinary Shares Acquired by U.S.
Taxpayers,"  and  "Where  You Can Find More  Information"  are  insofar  as they
describe U.S. statutes, rules, or legal conclusions and insofar as they describe
the  contents  of  certain  provisions  of the  U.S.  Subsidiary's  Articles  of
Incorporation or bylaws or other  organizational  documents,  do not contain any
untrue statement of a material fact or


                                     III-4
<PAGE>

omit to state a material fact required to be stated therein or necessary to make
the  statements  therein,  in light of the  circumstances  under which they were
made, not misleading.

                  21. The Company has duly and  irrevocably  appointed  the U.S.
Subsidiary,  a corporation  organized under the laws of the State of California,
as its agent to receive  service  of  process  in any  action  against it in any
federal  or state  court  sitting  in the City of  Minneapolis,  Minnesota,  has
waived,  to the fullest extent it may do so, any objection which it may have now
or hereafter to the laying of venue of any such proceeding,  and has effectively
submitted to the exclusive  jurisdiction of such courts in any such suit, action
or proceeding.

                  22. The  Company  has duly given the  Nasdaq  National  Market
Notification  Form For Listing of Additional  Shares required in connection with
the offering to the Nasdaq National Market.


                                     III-5
<PAGE>


                                   SCHEDULE IV

                  1. The  Company  has been  duly  incorporated  and is  validly
existing as a corporation under the laws of Israel, and has full corporate power
and  authority  to own or lease its  properties  and  conduct  its  business  as
described in the Registration Statement. To the best our knowledge,  the Company
has no subsidiaries other than the Subsidiaries,  and owns no equity interest in
any corporation,  partnership,  limited  liability company or other entity other
than the Subsidiaries.

                  2.   The   Company   has   an   authorized   and   outstanding
capitalization as set forth in the Prospectus;  the share capital of the Company
conforms  as to  legal  matters  to the  description  thereof  contained  in the
Prospectus  under the caption  "Description of Share Capital";  proper corporate
proceedings have been taken to validly  authorize such authorized share capital;
all of the outstanding Ordinary Shares have been duly and validly issued and are
fully paid and nonassessable and the holders thereof are not subject to personal
liability  by reason of being  such  holders;  and no  preemptive  rights of, or
rights  of  refusal  in  favor  of,  shareholders  exist  with  respect  to  the
Securities,  or the  issue  and sale  thereof,  pursuant  to the  Memorandum  or
Articles of Association and other governing documents of the Company and, to the
our  knowledge,  there are no  contractual  preemptive  rights,  rights of first
refusal  or rights of first  co-sale  with  respect to the issue and sale of the
Securities.

                  3. The  Securities  to be issued and sold by the Company under
the Purchase Agreement have been duly authorized and, when issued, delivered and
paid for in accordance with the terms of the Purchase Agreement,  will have been
validly issued and will be fully paid and nonassessable, and the holders thereof
will not be  subject to  personal  liability  by reason of being  such  holders.
Except as otherwise stated in the Registration  Statement and Prospectus,  there
are no preemptive rights or other rights to subscribe for or to purchase, or any
restriction  upon the voting or transfer of, any Ordinary Shares pursuant to the
Company's  Memorandum  or  Articles of  Association  or any  agreement  or other
instrument  known to us to which the  Company is a party or by which the Company
is bound.

                  4. As of the date of the  Purchase  Agreement,  we did not own
any equity  security of the Company or any  instrument  convertible  into or any
right to purchase any equity security of the Company.  5. The description of the
Company's  Option plans and options granted and which may be granted  thereunder
and the options granted otherwise than under such plans, all as set forth in the
Prospectus,  accurately and fairly presents the information with respect to such
plans and options.

                  6.  Neither  the   execution  and  delivery  of  the  Purchase
Agreement,  the  issue and sale by the  Company  of the  Securities  sold by the
Company as  contemplated by the Purchase  Agreement nor the  consummation of any
other transactions  contemplated by the Purchase Agreement will (with or without
notice  and/or the passage of time)  conflict  with,


                                      IV-1
<PAGE>

result in a violation  of,  constitute a default  under or result in a breach of
(A) the Memorandum or Articles of Association  or other  governing  documents of
the Company, (B) any agreement, indenture or instrument known to us to which the
Company is a party or by which it is bound or to which any of its  properties is
subject, (C) any applicable law, rule, regulation,  administrative regulation or
decree, or (D) so far as is known to us, any order, writ,  injunction or decree,
of any jurisdiction, court or governmental instrumentality.

                  7. To the best of our  knowledge,  the Company  holds,  and is
operating in compliance in all material  respects with, all franchises,  grants,
authorizations,  licenses, permits, easements, consents, certificates and orders
of any  governmental  or  self-regulatory  body  required for the conduct of its
business and all such franchises,  grants,  authorizations,  licenses,  permits,
easements,  consents,  certifications and orders are valid and in full force and
effect.

                  8. To the best of our knowledge,  all holders of securities of
the Company  having  rights to the  registration  of Ordinary  Shares,  or other
securities,  because of the filing of the Registration  Statement by the Company
have waived such rights or such rights have been  satisfied,  or have expired by
reason of lapse of time following  notification of the Company's  intent to file
the Registration Statement; to the best of our knowledge, except as described in
the Registration Statement there are no contracts,  agreements or understandings
between the Company and any person granting such person the right to require the
Company to file a registration  statement  under the Securities Act with respect
to any  securities  of the  Company  owned or to be owned by such  person  or to
require the Company to include  such  securities  in the  securities  registered
pursuant to the Registration  Statement or any future registration  statement of
the Company; to our knowledge,  neither the filing of the Registration Statement
nor the offering or sale of the Ordinary  Shares as contemplated by the Purchase
Agreement  gives rise to any rights for or relating to the  registration  of any
Ordinary  Shares  or  other  securities  of the  Company,  except  as  otherwise
described in the Prospectus.

                  9. No consent, approval, authorization,  exemption or order of
any  court  or  Israeli  governmental  agency  or body  or,  to the  best of our
knowledge,  any  financial  institution,  is  required  in  connection  with the
execution  and  delivery by the  Company of the  Purchase  Agreement  or for the
issuance and sale of the Securities as  contemplated  by the Purchase  Agreement
and the  consummation  of the other  transactions  contemplated  in the Purchase
Agreement, except such as have been obtained in connection with the purchase and
distribution of the Securities by the Underwriters or such consents,  approvals,
authorizations, exemptions or orders, the lack of which will not have a Material
Adverse  Effect;  to the best of our  knowledge,  no  proceedings  to rescind or
modify such consents, approvals, authorizations,  exemptions or orders have been
instituted  and are pending or  contemplated  by any Israeli  authority;  and an
exemption in  connection  with the  offering  contemplated  by the  Registration
Statement has been granted by the ISA.

                  10. Upon  issuance and  delivery of the Ordinary  Shares being
sold by the Company against payment therefor pursuant to the Purchase Agreement,
the  Underwriters  in each case  acquire  good and valid title to such  Ordinary
Shares in each case (so far as it


                                      IV-2
<PAGE>

depends on the  Company)  free and clear of all liens,  encumbrances,  equities,
preemptive  rights and other claims  arising  through the Company;  the Ordinary
Shares conform in all material respects to the description  thereof contained in
the Prospectus;  and no further approval or authority of the shareholders or the
Board of  Directors  of the Company is required for the issuance and sale of the
Ordinary Shares.

                  11. To the best of our  knowledge,  the  Company (i) is not in
violation  of its  Memorandum  or Articles of  Association,  or other  governing
documents,  (ii) is not in default  in any  material  respect,  and no event has
occurred which,  with notice or lapse of time or both,  would  constitute such a
default, in the due performance or observance of any term, covenant or condition
contained in any  indenture,  mortgage,  deed of trust,  loan agreement or other
agreement or instrument  known to us to which the Company is a party or by which
it is bound or to which any of its properties or assets is subject,  or (iii) is
not in  violation in any material  respect of any law,  ordinance,  governmental
rule,  regulation  or court  decree to which it or its property or assets may be
subject or has  failed to obtain  any  material  license,  permit,  certificate,
franchise  or  other  governmental  authorization  or  permit  necessary  to the
ownership of its property or to the conduct of its business,  except in the case
of clauses (ii) and (iii) for such violations or failures that,  individually or
in the aggregate, would not have a Material Adverse Effect.

                  12. The Company has full power and authority to enter into the
Purchase  Agreement;  the Purchase Agreement has been duly authorized,  executed
and  delivered  by the  Company  and  constitutes  a valid,  legal  and  binding
obligation of the Company  enforceable  in accordance  with its terms (except as
rights to  indemnity  thereunder  may be limited by  Israeli  public  policy and
except  as  such  enforceability  may  be  limited  by  bankruptcy,  insolvency,
reorganization  or similar laws affecting the rights of creditors  generally and
subject to general  principles of equity) and all corporate  authorizations  and
consents  necessary for the execution and delivery of the Purchase Agreement and
the consummation of the transactions contemplated thereby have been given.

                  13.  The  Company  has  all  requisite   corporate  power  and
authority to issue,  sell and deliver the Ordinary  Shares being issued and sold
by it in  accordance  with and upon the  terms and  conditions  set forth in the
Purchase Agreement; all corporate action required to be taken by the Company for
the due and proper  authorization,  issuance,  sale and delivery of the Ordinary
Shares has been validly and  sufficiently  taken; the filing of the Registration
Statement and the  Prospectus  with the Commission  and, to the extent  required
with the  appropriate  Israeli  authorities,  has been duly authorized by and on
behalf of the Company and the  Registration  Statement has been duly executed by
the Company in accordance with Israeli law.

                  14. To the best of our knowledge, the Company does not own any
real  property  except as otherwise  described in the  Prospectus;  and all real
property  and  buildings  held under  lease by the  Company are held by it under
valid,  subsisting  and  enforceable  leases,  with such  exceptions  as are not
material and do not interfere  with the use made and proposed to be made of such
property and buildings by the Company.


                                      IV-3
<PAGE>

                  15.  To the best of our  knowledge,  there  is no  litigation,
action,  suit or governmental  proceeding or investigation  pending to which the
Company is a party or to which any  property of the Company is subject,  or that
seeks to restrain,  enjoin or prevent the execution and delivery of the Purchase
Agreement, or the consummation of the transactions contemplated thereby, or that
questions  the  legality or validity  of any such  transaction  or that seeks to
recover damages or obtain other relief in connection with any such transactions,
or which  would  could be  reasonably  be  expected  to have a Material  Adverse
Effect, if determined adversely to the Company.

                  16.  The  certificates  for the  Securities  to be sold by the
Company  and  delivered  on the  Closing  Date are in due and proper  form under
Israeli law.

                  17.  The  statements  set forth in the  Prospectus  describing
Israeli  statutes  and  regulations  and  the  statements  in  the  Registration
Statement and the Prospectus  with respect to matters of Israeli law,  including
the statements  describing  Israeli law under the captions "Risk Factors - Risks
Relating to Operations in Israel," "Dividend Policy,"  "Management's  Discussion
and  Analysis  of  Financial  Condition  and Result of  Operations  -  Effective
Corporate   Tax  Rates,"   "Business  -   Employees,"   "Management,"   "Certain
Transactions,"  "Description of Share Capital," "Israeli Taxation and Investment
Programs," "Conditions in Israel," "ISA Exemption," and "Enforceability of Civil
Liabilities,"  insofar  as they  describe  Israeli  statutes,  rules,  or  legal
conclusions  and insofar as they describe the contents of certain  provisions of
the  Company's  Memorandum  of  Association,  Articles of  Association  or other
organizational documents, do not contain any untrue statement of a material fact
or omit to state a material fact  required to be stated  therein or necessary to
make the statements therein, in light of the circumstances under which they were
made, not misleading.

                  18. No Israeli  stamp or other  issuance or transfer  taxes or
duties and,  assuming  that none of the  Underwriters  is subject to taxation in
Israel,  capital gains, income,  withholding or other taxes are payable by or on
behalf of the  Underwriters to any Israeli taxing  authority in connection with:
(a) the issuance of the Securities;  (b) the sale and delivery by the Company of
the Securities in the manner contemplated in the Purchase Agreement;  or (c) the
sale  and  delivery  outside  of  Israel  by the  Underwriters  to  the  initial
purchasers thereof in the manner contemplated by the Purchase Agreement.

                  19.  The  Company  has  duly  and  irrevocably  appointed  the
Subsidiary,  a corporation  organized under the laws of the State of California,
as its agent to receive  service of process in any action against it in any U.S.
federal or state court sitting in the City of Minneapolis, Minnesota arising out
of or in connection with the Purchase Agreement or the transactions contemplated
thereby

                  20. Under the laws of Israel, the submission by the Company to
the  jurisdiction  of  any  federal  or  state  court  sitting  in the  City  of
Minneapolis,  Minnesota and the designation of the law of the state of Minnesota
to apply to the Purchase  Agreement is binding upon the Company and, if properly
brought to the attention of the court or


                                      IV-4
<PAGE>

                  administrative  body in  accordance  with the laws of  Israel,
would be enforceable in any judicial or administrative proceeding in Israel.

                  21. Subject to certain time limitations,  an Israeli court may
declare a foreign civil judgment  enforceable if it finds that: (i) the judgment
was  rendered  by a court which was,  according  to the laws of the state of the
court,  competent  to  render  the  judgment,  (ii) the  judgment  is no  longer
appealable,  (iii)  the  obligation  imposed  by  the  judgment  is  enforceable
according to the rules relating to the enforceability of judgments in Israel and
the  substance of the judgment is not  contrary to public  policy,  and (iv) the
judgment  is  executory  in the state in which it was  given.  Even if the above
conditions are satisfied,  an Israeli court will not enforce a foreign  judgment
if it was given in a state  whose laws do not  provide  for the  enforcement  of
judgments of Israeli courts (subject to exceptional cases) or if its enforcement
is likely to prejudice the  sovereignty  or security of the State of Israel.  An
Israeli court also will not declare a foreign  judgment  enforceable  if (i) the
judgment  was  obtained  by  fraud,  (ii)  there was no due  process,  (iii) the
judgment  was  rendered by a court not  competent  to render it according to the
laws of private  international  law in Israel,  (iv) the judgment is at variance
with another judgment that was given in the same matter between the same parties
and which is still  valid,  or (v) at the time the  action was  brought  `in the
foreign court a suit in the same matter and between the same parties was pending
before a court or tribunal in Israel.


                                      IV-5



                                 AMENDMENT NO. 2
                                       TO
                              AMENDED AND RESTATED
                          REGISTRATION RIGHTS AGREEMENT

         This  AMENDMENT  NO. 2 TO  AMENDED  AND  RESTATED  REGISTRATION  RIGHTS
AGREEMENT  (the  "Agreement")  is made as of the 10th day of March,  2000 by and
among Commtouch  Software Ltd., an Israeli  company (the  "Company")  having its
principal  executive offices at 10 Technology Avenue,  Ein Vered 40696,  Israel,
and  the  investors   identified  on  the  signature   page  to  this  Agreement
(collectively, the "Preferred Shareholders").

         In  accordance  with the  provisions  of Section 7 of the  Amended  and
Restated  Registration  Rights Agreement (the "Original Rights  Agreement"),  as
amended and  restated by Amendment  No. 1 to Amended and  Restated  Registration
Rights  Agreement,  dated January 4, 2000 ("Amendment No. 1" and,  together with
the  Original  Rights  Agreement,  as  amended,  the "Rights  Agreement")  which
provides  that any  provision of the Rights  Agreement  may be amended,  and the
exercise  of any  rights  under  the  Rights  Agreement  may be  waived  (either
generally   or  in  a  particular   instance,   and  either   retroactively   or
prospectively) only with the written consent of the Company,  and at least a 51%
majority  in  interest  of the  holders of the Shares (as  defined in the Rights
Agreement), the parties to this Agreement hereby agree as follows:

         1. In the event that the Company  undertakes an underwritten  secondary
offering  of  its  ordinary   shares  during  the  next  sixty  (60)  days  (the
"Offering"),  the  allocation  of the ordinary  shares to be sold in  connection
therewith shall be as follows:

                  (a) First,  to the Company,  in an amount as determined by the
         Board of  Directors  of the Company to be in the best  interests of the
         Company;

                  (b) Second,  following  the  allocation  to the Company of the
         amount  set forth  under  paragraph  (a)  above,  the  number of shares
         included in the registration  and underwriting  will be allocated among
         the  holders  of  ordinary   shares  set  forth  in  Exhibit  A  hereto
         (individually,  a "Holder" and collectively,  the "Holders") requesting
         registration  in  proportion,  as nearly as  practicable,  to the total
         number of ordinary shares offered by such Holders at the time of filing
         of a  registration  statement  in  connection  with the  offering in an
         amount  equal to the balance of the  ordinary  shares  remaining  to be
         sold.

         2. Each Holder waived the 30 days notice provision set forth in section
2 of the Rights  Agreement  and shall notify the Company,  within five  business
days of its receipt of the Company's notice of the Offering, of the total number
of shares such Holder  intends to sell and, to the extent that the  underwriters
of the secondary offering determine it necessary to cutback the number of shares
offered to the public,  each Holder  agrees to a pro rata cutback based upon its
percentage  ownership of the total number of shares  requested to be sold by all
Holders in the secondary offering.


<PAGE>

         3. Each Holder hereby grants power of attorney as follows:

                  (a)  The  undersigned  hereby   irrevocably   constitutes  and
         appoints Gideon Mantel and James Collins (the "Attorneys-in-Fact"), and
         each of them,  his  agent and  attorney  in fact,  with  full  power of
         substitution,  with respect to all matters  arising in connection  with
         the  secondary  offering  and sale of the  Company's  ordinary  shares,
         including, but not limited to, the power and authority on behalf of the
         undersigned to do or cause to be done any of the following things:

                           (i) negotiate, determine and agree upon (A) the price
                  at which the ordinary  shares will be offered to the public by
                  the underwriters pursuant to an Underwriting Agreement for the
                  sale of the ordinary  shares (the  "Underwriting  Agreement"),
                  (B) the  underwriting  discount  with  respect to the ordinary
                  shares, and (c) the price at which the ordinary shares will be
                  sold to the Underwriters by the Selling Stockholders  pursuant
                  to the  Underwriting  Agreement,  all of which shall be at the
                  same price or discount at which the company and other  Selling
                  Stockholders offer or sell ordinary shares.

                           (ii)  prepare,  execute and  deliver an  Underwriting
                  Agreement,  but with such  insertions,  changes,  additions or
                  deletions  as the  Attorneys  in  Fact  shall  approve  as not
                  materially  adverse to the  undersigned,  such  approval to be
                  conclusively  evidenced by the  execution  and delivery of the
                  Underwriting Agreement by the Attorneys-in-Fact, including the
                  making of all  representations  and agreements provided in the
                  Underwriting  Agreement  to be made,  and the  exercise of all
                  authority thereunder vested in, the undersigned;

                           (iii) sell, assign, transfer and deliver the ordinary
                  shares  to  the  underwriters  pursuant  to  the  Underwriting
                  Agreement and deliver to the underwriters certificates for the
                  ordinary shares so sold;

                           (iv)  take  any and all  steps  deemed  necessary  or
                  desirable  by the  Attorneys-in-Fact  in  connection  with the
                  registration  of the ordinary  shares under the Securities Act
                  of 1933, as amended (the  "Securities  Act"),  the  Securities
                  Exchange Act of 1934, as amended,  and under the securities or
                  "blue   sky"  laws  of  various   states  and   jurisdictions,
                  including,  without  limitation,  the giving or making of such
                  undertakings,  representations,   warranties,  and  agreements
                  (including,  without limitations,  the restriction on sales of
                  ordinary  shares by the  undersigned)  and the  taking of such
                  other steps as the  Attorneys-in-Fact  may deem  necessary  of
                  advisable;

                           (v) instruct the Company and the Company's  custodian
                  for the  ordinary  shares  (the  "Custodian")  on all  matters
                  pertaining to the sale of the ordinary  shares and delivery of
                  certificates therefor;

                           (vi)  provide,  in accordance  with the  Underwriting
                  Agreement,  for the payment of expenses  of the  offering  and
                  sale  of  the  ordinary   shares  covered  by  a

                                       2

<PAGE>

                  registration  statement  relating  thereto  and  filed  by the
                  Company with the Securities and Exchange Commission;

                           (vii)   retain  legal   counsel  to   represent   the
                  undersigned in connection with any and all matters referred to
                  herein  (which  counsel  will  be  McCutchen,  Doyle,  Brown &
                  Enersen, LLP);

                           (viii)  otherwise  take all actions and do all things
                  necessary  or  proper,   required,   contemplated   or  deemed
                  advisable  or  desirable  by the  Attorneys-in-Fact  in  their
                  discretion, including, if necessary, the endorsement (if blank
                  or otherwise) on behalf of the  undersigned of the certificate
                  or  certificates  representing  the ordinary shares or a stock
                  power or powers  attached to such  certificate or certificates
                  and the  execution  and delivery of any other  documents,  and
                  generally  act for and in the  name  of the  undersigned  with
                  respect to the sale of the ordinary shares to the Underwriters
                  and the reoffering of the ordinary shares by the  Underwriters
                  as fully as could the undersigned if then  personally  present
                  and acting.

                  (b) Each  Attorney-in  Fact may act  alone in  exercising  the
         rights and powers conferred on the Attorneys-in Fact by this Agreement,
         and the act of any Attorney-in-Fact  shall be considered the act of the
         Attorneys-in-Fact.   Each   Attorney-in-Fact  is  hereby  empowered  to
         determine, in his sole and absolute discretion, the time or times when,
         the  purposes  for  which,  and the manner in which,  any power  herein
         conferred upon the Attorney-in-Fact shall be exercised.

                  (c) The Custodian,  the Company and the  underwriters  and all
         other persons dealing with the  Attorneys-in-Fact as such may rely upon
         any  writing  believed in good faith to be signed by one or more of the
         Attorneys-in-Fact.

                  (d) The  Attorneys-in-Fact  shall not receive any compensation
for their services rendered hereunder.

         4. Each Holder  hereby  agrees (a) not to sell,  transfer or  otherwise
dispose of their ordinary shares remaining after the secondary  offering without
the prior written consent of the underwriters for a period not to exceed 90 days
after  the  commencement  of the  offering  (the  length  of such  period  to be
negotiated by the Company and the  Underwriters)  and (b) to execute a "lock-up"
agreement  to that effect  which will allow the  underwriters  to provide for an
orderly  distribution  of ordinary  shares in the  proposed  offering and for an
orderly market thereafter.

         5. This  Agreement  shall be governed  by the laws of Israel,  with any
terms relating to United States  securities laws to be interpreted in accordance
with the  federal  laws of the United  States of America.  Any dispute  arising,
under or with respect to this  Agreement  shall be resolved  exclusively  in the
appropriate court in Tel-Aviv, Israel.

         6. This Agreement and the Rights  Agreement shall constitute the entire
agreement among the parties regarding the transactions  contemplated  herein and
therein,  and may not be

                                       3

<PAGE>


amended except in writing.  Except as set forth herein,  all of the terms of the
Rights  Agreement shall remain unchanged and be in full force and effect and are
hereby  ratified  and  confirmed in all  respects.  In the event of any conflict
between  the  provisions  of  this  Agreement  and  the  Rights  Agreement,  the
provisions of this Agreement shall control.  On and after the date hereof,  each
reference in the Rights Agreement to "this  Agreement,"  "hereunder,"  "hereof,"
"herein"  or words of like import  shall mean and be a  reference  to the Rights
Agreement as amended hereby.

         7. This Agreement may be executed in one or more counterparts,  each of
which shall be deemed an original,  but all of which together  shall  constitute
one and the same instrument.

                                       4
<PAGE>



         IN WITNESS  WHEREOF,  the parties have executed this Amendment No. 2 to
Amended and Restated  Registration  Rights  Agreement as of the date first above
written.

COMMTOUCH SOFTWARE LTD.

     By: ___________________________
     Name: _________________________
     Title: ________________________

PREFERRED SHAREHOLDERS:

     By: ___________________________
     Name: _________________________
     Company: ______________________
     Title: ________________________

     By: ___________________________
     Name: _________________________
     Company: ______________________
     Title: ________________________

     By: ___________________________
     Name: _________________________
     Company: ______________________
     Title: ________________________

     By: ___________________________
     Name: _________________________
     Company: ______________________
     Title: ________________________

     By: ___________________________
     Name: _________________________
     Company: ______________________
     Title: ________________________

     By: ___________________________
     Name: _________________________
     Company: ______________________
     Title: ________________________


                                       5
<PAGE>



                                    EXHIBIT A

                              LIST OF SHAREHOLDERS

Preferred Shareholders

     All  parties  who are  parties to the  Registration  Rights  Agreement  who
request participation in the secondary offering.

Ordinary Shareholders

Any of the following who request participation in the secondary offering:

1.   Gideon Mantel

2.   Amir Lev

3.   Isabel Maxwell

4.   James Collins

5.   Nahum Sharfman



                                       6


                               3,000,000 Shares(1)

                             Commtouch Software Ltd.

                                 Ordinary Shares

                               PURCHASE AGREEMENT

                                                                 March ___, 2000

U.S. BANCORP PIPER JAFFRAY
THOMAS WEISEL PARTNERS LLC
WARBURG DILLON READ LLC,
A subsidiary of UBS AG
WILLIAM BLAIR & COMPANY
As Representatives of the several
Underwriters named in Schedule I hereto
c/o U.S. Bancorp Piper Jaffray
222 South Ninth Street
Minneapolis, Minnesota 55402

Gentlemen:

     Commtouch  Software  Ltd.,  an Israeli  company  (the  "Company"),  and the
stockholders   of  the  Company  listed  in  Schedule  I  hereto  (the  "Selling
Stockholders")  severally propose to sell to the several  Underwriters  named in
Schedule II hereto (the  "Underwriters")  an aggregate of 3,000,000  shares (the
"Firm  Shares") of ordinary  shares,  nominal  value NIS 0.05 per share  (herein
called "Ordinary Shares"),  of the Company. The Firm Shares consist of 1,669,000
authorized but unissued Ordinary Shares to be issued and sold by the Company and
1,331,000  outstanding  Ordinary Shares to be sold by the Selling  Shareholders.
The Company has also granted to the several  Underwriters  an option to purchase
up to 450,000  additional  Ordinary Shares on the terms and for the purposes set
forth in Section 3 hereof (the "Option Shares").  The Firm Shares and any Option
Shares  purchased  pursuant to this Purchase  Agreement are herein  collectively
called the "Securities."

     The Company and the Selling  Shareholders  hereby  confirm their  agreement
with respect to the sale of the Securities to the several Underwriters, for whom
you are acting as Representatives (the "Representatives").

     Registration Statement and Prospectus. A registration statement on Form F-1
(File No. 333-________) with respect to the Securities,  including a preliminary
form of  prospectus,  has been  prepared by the Company in  conformity  with the
requirements  of the  Securities  Act of 1933,  as amended (the "Act"),  and the
rules and regulations  ("Rules and  Regulations") of the Securities and Exchange
Commission (the "Commission") thereunder and has been filed with the Commission;
one or more amendments to such registration statement have also been so prepared
and have been,  or will be, so filed;  and,  if the  Company has elected to rely
upon  Rule  462(b)  of the Rules and  Regulations  to  increase  the size of the
offering  registered  under the Act,  the Company will prepare and file with the
Commission a registration  statement  with respect to such increase  pursuant to
Rule 462(b).  Copies of such  registration  statement(s) and amendments and each
related preliminary prospectus have been delivered to you.

     If the  Company  has  elected  not to rely  upon Rule 430A of the Rules and
Regulations, the Company has prepared and will promptly file an amendment to the
registration statement and an amended prospectus (including a term sheet meeting
the requirements of Rule 434 of the Rules and  Regulations).  If the Company has
elected to rely upon Rule 430A of the Rules and Regulations, it will prepare and
file a  prospectus  (or a term  sheet  meeting  the  requirements  of Rule  434)
pursuant to Rule 424(b) that discloses the information  previously  omitted from
the  prospectus  in reliance  upon Rule 430A.  Such  registration  statement  as
amended at the time it is or was declared  effective by the Commission,  and, in
the event of any amendment  thereto  after the  effective  date and prior to the
First Closing Date (as hereinafter defined),  such registration  statement as so
amended (but only from and after the effectiveness of such amendment), including
a registration statement (if any) filed pursuant to Rule 462(b) of the Rules and

- ----------
(1)  Plus an option to purchase up to 450,000 additional shares from the Company
     to cover over-allotments.
<PAGE>
Regulations  increasing  the size of the offering  registered  under the Act and
information (if any) deemed to be part of the registration statement at the time
of  effectiveness  pursuant  to  Rules  430A(b)  and  434(d)  of the  Rules  and
Regulations,  is hereinafter called the "Registration Statement." The prospectus
included  in the  Registration  Statement  at  the  time  it is or was  declared
effective by the Commission is hereinafter called the "Prospectus,"  except that
if any prospectus (including any term sheet meeting the requirements of Rule 434
of the Rules and  Regulations  provided by the Company for use with a prospectus
subject  to  completion  within  the  meaning  of Rule  434 in order to meet the
requirements of Section 10(a) of the Rules and Regulations) filed by the Company
with the Commission pursuant to Rule 424(b) (and Rule 434, if applicable) of the
Rules and Regulations or any other such prospectus  provided to the Underwriters
by the  Company  for use in  connection  with  the  offering  of the  Securities
(whether or not required to be filed by the Company with the Commission pursuant
to Rule 424(b) of the Rules and Regulations) differs from the prospectus on file
at the time the  Registration  Statement  is or was  declared  effective  by the
Commission,  the term  "Prospectus"  shall  refer to such  differing  prospectus
(including  any term  sheet  within  the  meaning  of Rule 434 of the  Rules and
Regulations)  from  and  after  the  time  such  prospectus  is  filed  with the
Commission or transmitted  to the  Commission  for filing  pursuant to such Rule
424(b)  (and Rule  434,  if  applicable)  or from and after the time it is first
provided to the Underwriters by the Company for such use. The term  "Preliminary
Prospectus"  as used herein  means any  preliminary  prospectus  included in the
Registration  Statement  prior to the time it becomes or became  effective under
the Act and any  prospectus  subject to  completion as described in Rule 430A or
434 of the Rules and Regulations.

     Representations and Warranties of the Company and the Selling Shareholders.

          (a) The Company  represents  and  warrants  to, and agrees  with,  the
several Underwriters as follows:

               (i) No order  preventing or suspending the use of any Preliminary
Prospectus has been issued by the Commission and each Preliminary Prospectus, at
the time of filing  thereof,  did not contain an untrue  statement of a material
fact or omit to state a material fact required to be stated therein or necessary
to make the statements  therein,  in the light of the circumstances  under which
they were made,  not  misleading;  except that the foregoing  shall not apply to
statements in or omissions from any Preliminary Prospectus in reliance upon, and

                                       2
<PAGE>
in conformity with, written  information  furnished to the Company by you, or by
any Underwriter through you, specifically for use in the preparation thereof.

               (ii)  As  of  the  time  the   Registration   Statement  (or  any
post-effective  amendment thereto,  including a registration  statement (if any)
filed pursuant to Rule 462(b) of the Rules and  Regulations  increasing the size
of the offering  registered  under the Act) is or was declared  effective by the
Commission,  upon  the  filing  or first  delivery  to the  Underwriters  of the
Prospectus  (or any  supplement  to the  Prospectus  (including  any term  sheet
meeting the requirements of Rule 434 of the Rules and  Regulations))  and at the
First Closing Date and Second  Closing Date (as  hereinafter  defined),  (A) the
Registration  Statement and the  Prospectus  (in each case, as so amended and/or
supplemented)  conformed  or  will  conform  in  all  material  respects  to the
requirements  of the Act and the Rules  and  Regulations,  (B) the  Registration
Statement  (as so amended) did not or will not include an untrue  statement of a
material fact or omit to state a material fact required to be stated  therein or
necessary to make the statements therein not misleading,  and (C) the Prospectus
(as so  supplemented)  did not or will not  include  an  untrue  statement  of a
material fact or omit to state a material fact required to be stated  therein or
necessary to make the statements therein, in light of the circumstances in which
they are or were made, not misleading; except that the foregoing shall not apply
to statements in or omissions  from any such document in reliance  upon,  and in
conformity with, written information  furnished to the Company by you, or by any
Underwriter through you, specifically for use in the preparation thereof. If the
Registration  Statement has been declared  effective by the Commission,  no stop
order  suspending  the  effectiveness  of the  Registration  Statement  has been
issued,  and no  proceeding  for that  purpose  has been  initiated  or,  to the
Company's knowledge, threatened by the Commission.

               (iii)  The  consolidated  financial  statements  of the  Company,
together with the notes thereto, set forth in the Registration Statement and the
Prospectus  comply in all material respects with the requirements of the Act and
fairly  present  the  consolidated  financial  condition  of the Company and its
consolidated subsidiaries indicated and the results of operations and changes in
cash flows for the periods  therein  specified in conformity  with United States
generally accepted  accounting  principles  consistently  applied throughout the
periods  involved  (except as  otherwise  stated  therein);  and the  supporting
schedules included in the Registration  Statement present fairly the information
required to be stated therein.  No other  financial  statements or schedules are
required to be included in the Registration Statement or Prospectus. Kost, Forer
& Gabbay (a  member of Ernst & Young  International),  which has  expressed  its
opinion with respect to the financial  statements and schedules  filed as a part
of the Registration Statement and included in the Registration Statement and the
Prospectus,  are independent  public  accountants as required by the Act and the
Rules and  Regulations.  The summary  financial  and other data  included in the
Registration  Statement and the Prospectus  present fairly the information shown
therein  and  have  been  compiled  on a basis  consistent  with  the  financial
statements presented therein.

               (iv)  Each  of  the  Company  and  Commtouch   Software  Inc.,  a
California corporation, and Commtouch Software (UK) Ltd., an English corporation
(the  "Subsidiaries"),  has been duly  organized  and is validly  existing  as a
corporation  under the laws of its jurisdiction of  incorporation  and Commtouch
Software  Inc. is in good  standing  under the laws of  California.  Each of the
Company and the  Subsidiaries  has full corporate power and authority to own its
properties  and  conduct  its  business  as  currently  being  carried on and as
described  in the  Registration  Statement  and  the  Prospectus,  and  is  duly
qualified  to do  business  as a foreign  corporation  in good  standing in each

                                       3
<PAGE>
jurisdiction in which it owns or leases real property or in which the conduct of
its business makes such  qualification  necessary and in which the failure to so
qualify  would  have a  material  adverse  effect on the  assets or  properties,
business, results of operations, prospects or condition (financial or otherwise)
of the  Company  and the  Subsidiaries,  taken as a whole (a  "Material  Adverse
Effect").

               (v) Except as contemplated in the Registration  Statement and the
Prospectus,  subsequent to the respective dates as of which information is given
in the  Registration  Statement and the Prospectus,  neither the Company nor the
Subsidiaries  has incurred any material  liabilities or  obligations,  direct or
contingent,  or entered into any material transactions,  or declared or paid any
dividends or made any distribution of any kind with respect to its share capital
stock;  and there has not been any change in the share capital stock (other than
a change in the number of  outstanding  Ordinary  Shares due to the  issuance of
shares upon the exercise of  outstanding  options or warrants),  or any material
change  in the  short-term  or  long-term  debt,  or any  issuance  of  options,
warrants,  convertible  securities or other rights to purchase the share capital
stock,  of the  Company or the  Subsidiaries,  or any change that had a Material
Adverse Effect,  or any  development  involving a prospective  Material  Adverse
Effect.

               (vi) Except as set forth in the  Registration  Statement  and the
Prospectus, there is not pending or, to the knowledge of the Company, threatened
or contemplated,  any action,  suit or proceeding to which the Company or any of
its subsidiaries is a party or to which any property or assets of the Company or
the  Subsidiaries  is  subject  before or by any court or  governmental  agency,
authority or body, or any arbitrator,  which might result in a Material  Adverse
Effect.

               (vii) There are no  contracts  or documents of the Company or the
Subsidiaries  that are required to be described in the Prospectus or to be filed
as  exhibits  to the  Registration  Statement  by the  Act or by the  Rules  and
Regulations that have not been so described or filed.

               (viii) This  Agreement  has been duty  authorized,  executed  and
delivered by the Company,  and constitutes a valid, legal and binding obligation
of the Company,  enforceable in accordance  with its terms,  except as rights to
indemnity hereunder may be limited by federal,  state or foreign securities laws
or the policies  underlying such laws and except as such  enforceability  may be
limited by bankruptcy, insolvency,  reorganization or similar laws affecting the
rights of creditors  generally and subject to general  principles of equity. The
execution,  delivery and  performance of this Agreement and the  consummation of
the transactions herein contemplated will not result in a breach or violation of
any of the terms and provisions of, or constitute a default under,  any statute,
any  agreement or  instrument  to which the Company is a party or by which it is
bound or to which any of its property is subject,  the  Company's  Memorandum of
Association or Articles of Association, or any order, rule, regulation or decree
of any court or governmental agency or body having jurisdiction over the Company
or any of its properties;  no consent,  approval,  authorization or order of, or
filing  with,  any  court or  governmental  agency or body is  required  for the
execution, delivery and performance of this Agreement or for the consummation of
the  transactions  contemplated  hereby,  including  the issuance or sale of the
Securities by the Company, except such as may be required under the Act or state
securities  or blue sky laws;  and the Company has full power and  authority  to
enter into this  Agreement  and to authorize,  issue and sell the  Securities as
contemplated by this Agreement.

               (ix) All of the issued and outstanding  equity  securities of the
Company,  including the  outstanding  Ordinary  Shares,  are duly authorized and
validly  issued,  fully paid and  nonassessable,  have been issued in compliance

                                       4
<PAGE>
with all Israeli and U.S. federal and state securities laws (including,  without
limitation, applicable Israeli securities laws), were not issued in violation of
or subject to any preemptive rights or other rights to subscribe for or purchase
securities,  and the holders  thereof are not subject to personal  liability  by
reason of being such holders;  and the share  capital of the Company,  including
the Ordinary  Shares,  conforms to the description  thereof in the  Registration
Statement  and  Prospectus.  Except  as  otherwise  stated  in the  Registration
Statement  and  Prospectus,  there are no  preemptive  rights or other rights to
subscribe for or to purchase, or any restriction upon the voting or transfer of,
any Ordinary  Shares  pursuant to the  Company's  Memorandum of  Association  or
Articles  of  Association  or any  agreement  or other  instrument  to which the
Company  is a party or by which the  Company  is bound.  All of the  issued  and
outstanding  shares of capital stock of each of the Subsidiaries  have been duly
and validly  authorized  and issued and are fully paid and  nonassessable,  and,
except as otherwise described in the Registration  Statement and the Prospectus,
the  Company  owns of record and  beneficially,  free and clear of any  security
interests,  claims, liens, proxies,  equities or other encumbrances,  all of the
issued  and  outstanding  shares  of such  stock.  Except  as  described  in the
Registration  Statement and the Prospectus (and except for options granted after
the date of the  Registration  Statement and the  Prospectus to employees of the
Company  pursuant  to the  stock  option  plans  described  in the  Registration
Statement and the  Prospectus,  which option  grants have been  disclosed to the
Representatives), there are no options, warrants, agreements, contracts or other
rights in existence to purchase or acquire from the Company or the  Subsidiaries
any shares of the share capital of the Company or the Subsidiaries.  The Company
has  an  authorized  and  outstanding   capitalization   as  set  forth  in  the
Registration  Statement and the Prospectus (except for options granted after the
date of the  Registration  Statement  and the  Prospectus  to  employees  of the
Company  pursuant  to the  stock  option  plans  described  in the  Registration
Statement and the  Prospectus,  which option  grants have been  disclosed to the
Representatives).

               (x) The  Securities  which may be sold  hereunder  by the Company
have been duly authorized and, when issued, delivered and paid for in accordance
with the terms hereof,  will have been validly issued and will be fully paid and
nonassessable, and the holders thereof will not be subject to personal liability
by reason of being such holders,  and conforms to the description thereof in the
Registration  Statement and the Prospectus.  No further approval or authority of
the  shareholders  of the  Company or the Board of  Directors  of the Company is
required for the sale and issuance of the Securities hereunder.

               (xi)  Neither the filing of the  Registration  Statement  nor the
offering or sale of the Securities as  contemplated by this Agreement gives rise
to any rights for or  relating to the  registration  of any  Ordinary  Shares or
other  securities  of the  Company,  and no person  or  entity  holds a right to
require  registration under the Securities Act of shares of capital stock of the
Company at any other time, except as disclosed in the Registration Statement and
the Prospectus.

               (xii) The Company and the Subsidiaries hold, and are operating in
compliance   in  all   material   respects   with,   all   franchises,   grants,
authorizations,  licenses, permits, easements, consents, certificates and orders
of any  governmental or regulatory body required for the conduct of its business
and all such franchises, grants,  authorizations,  licenses, permits, easements,
consents,  certifications and orders are valid and in full force and effect; and
the Company and the Subsidiaries are in compliance in all material respects with
all applicable federal, state, local and foreign (including, without limitation,
Israeli, English and U.S.) laws, regulations, orders and decrees.

                                       5
<PAGE>
               (xiii) The Company and the Subsidiaries  have good and marketable
title to all property described in the Registration Statement and the Prospectus
as being  owned by them,  in each  case  free and  clear of all  liens,  claims,
security  interests or other  encumbrances  except such as are  described in the
Registration Statement and the Prospectus;  the property held under lease by the
Company  and the  Subsidiaries  are held by them  under  valid,  subsisting  and
enforceable  leases with only such  exceptions  with  respect to any  particular
lease as do not  interfere  in any  material  respect  with the  conduct  of the
business of the Company or the Subsidiaries.

               (xiv)  The  Company  and  the  Subsidiaries  own or  possess  all
patents, patent applications,  trademarks, service marks, tradenames,  trademark
registrations,  service mark registrations,  copyrights,  licenses,  inventions,
trade   secrets   know-how,   proprietary   techniques,   processes  and  rights
("Intellectual Property") used in the conduct of the business of the Company and
the  Subsidiaries  as currently  carried on  (including  products,  services and
technology  contemplated by current  research and  development  projects) and as
described in the Registration Statement and the Prospectus.  Except as stated in
the Registration Statement and the Prospectus,  no name which the Company or the
Subsidiaries  uses and no other  aspect of the  business  of the  Company or the
Subsidiaries  will  involve or give rise to any  infringement  of, or license or
similar fees for, any  Intellectual  Property of others material to the business
or  prospects  of the Company and neither the Company nor the  Subsidiaries  has
received any notice alleging any such  infringement or fee, except as to matters
that will not cause a Material Adverse Effect.  To the knowledge of the Company,
its  Intellectual  Property is not being  infringed by any third  parties  which
infringement  could reasonably be expected,  whether singly or in the aggregate,
to have a Material Adverse Effect.

               (xv) Neither the Company nor the Subsidiaries (i) is in violation
of its respective Memorandum of Association, Articles of Association, charter or
by-laws, as the case may be, or other organizational documents (ii) in breach of
or  otherwise  in default in the  performance  of any  obligation,  agreement or
condition contained in any bond, debenture,  note, indenture,  loan agreement or
any other contract, lease or other instrument to which any of them is subject or
by which any of them may be bound,  or to which any of the property or assets of
the Company or any of its  subsidiaries  is subject,  nor has any event occurred
nor  condition  exist that with the notice and/or the passage of time would give
rise to such a breach or default or (iii) is in violation of any law, ordinance,
government  rule,  regulation  or court  order or decree to which any of them is
subject or by which any of them may be bound or to which any of the  property or
assets of the Company or any of its subsidiaries is subject,  except in the case
of  clauses  (ii) and (iii)  for such  breaches,  defaults  or  violations  that
individually or in the aggregate would not have a Material Adverse Effect.

               (xvi) The Company and its  subsidiaries  have filed all  Israeli,
English and U.S.  federal,  state,  local and foreign  income and  franchise tax
returns  required to be filed and are not in default in the payment of any taxes
which were  payable  pursuant to said  returns or any  assessments  with respect
thereto,  other  than  any  which  the  Company  or any of its  subsidiaries  is
contesting in good faith.

               (xvii) The Company has not  distributed  and will not  distribute
any  prospectus or other offering  material in connection  with the offering and
sale of the Securities  other than any Preliminary  Prospectus or the Prospectus
or other materials permitted by the Act to be distributed by the Company.

                                       6
<PAGE>
               (xviii) The  Securities  have been  approved for  quotation  upon
notice of issuance on the NASDAQ National Market.

               (xix) The Company has no  subsidiary or  subsidiaries  other than
the  Subsidiaries  and the  Company  owns no  capital  stock or other  equity or
ownership  or  proprietary  interest in any  corporation,  partnership,  limited
liability company,  joint venture association,  trust or other entity other than
the Subsidiaries.

               (xx) Each of the Company and the Subsidiaries  maintains a system
of internal accounting controls sufficient to provide reasonable assurances that
(i)  transactions  are  executed  in  accordance  with  management's  general or
specific  authorization;  (ii)  transactions are recorded as necessary to permit
preparation  of financial  statements  in  conformity  with  generally  accepted
accounting principles and to maintain accountability for assets; (iii) access to
assets is permitted  only in accordance  with  management's  general or specific
authorization;  and (iv) the recorded accountability for assets is compared with
existing  assets at reasonable  intervals and  appropriate  action is taken with
respect to any differences.

               (xxi) Other than as contemplated  by this Agreement,  the Company
has not  incurred  any  liability  for any  finder's or broker's  fee or agent's
commission  in connection  with the execution and delivery of this  Agreement or
the consummation of the transactions contemplated hereby.

               (xxii) Neither the Company nor any of its affiliates is presently
doing  business  with the  government  of Cuba or with any  person or  affiliate
located in Cuba.

               (xxiii) No labor dispute with the employees of the Company or any
of its subsidiaries  exists or, to the knowledge of the Company,  is threatened;
and the Company is not aware of any existing or imminent  labor  disturbance  by
the employees of any of its principal  suppliers or contractors which could have
a Material  Adverse Effect.  Neither the Company nor any of its subsidiaries has
violated any applicable safety or similar law applicable to its business nor any
federal or state law relating to discrimination in the hiring,  promotion or pay
of employees,  nor any  applicable  federal or state wage and hours law, nor any
provisions  of the  Employee  Retirement  Income  Security  Act or the rules and
regulations promulgated  thereunder,  the violation of any of which could have a
Material  Adverse Effect.  The Company is not aware of any threatened or pending
litigation  between  the  Company  or  any of its  subsidiaries  and  any of its
executive officers which, if adversely determined, could have a Material Adverse
Effect,  and has no reason to believe that such  officers will not remain in the
employment of the Company during the next twelve months.

               (xxiv) No transaction has occurred or relationship exists between
or among the Company or the  Subsidiaries and any of their officers or directors
or any  affiliate or affiliates of any such officer or director that is required
to be described in and is not  described in the  Registration  Statement and the
Prospectus.

               (xxv) The  Company  and each of its  subsidiaries  are insured by
insurers of recognized financial responsibility against such losses and risks in
such amounts as are  customary  in the  business in which they are engaged;  and
neither the Company nor any  subsidiary  has any reason to believe  that it will
not be able to renew its existing  insurance  coverage as and when such coverage
expires or to obtain similar  coverage from similar insurers as may be necessary
to  continue  their  business  at a cost that would not have a Material  Adverse
Effect.

               (xxvi) There are no affiliations with the National Association of
Securities Dealers,  Inc. (the "NASD") among the Company's  officers,  directors
or,  to  the  best  knowledge  of the  Company,  any  five  percent  or  greater

                                       7
<PAGE>
shareholder of the Company,  except as set forth in the  Registration  Statement
and the Prospectus or otherwise disclosed in writing to the Representatives.

               (xxvii)  Neither the Company  nor any of its  subsidiaries  is an
"investment  company"  nor a company  "controlled"  by an  "investment  company"
within the meaning of the  Investment  Company Act of 1940, as amended,  and the
rules and regulations thereunder (the "Investment Company Act").

               (xxviii)  Neither the Company nor any of its  subsidiaries or, to
the  knowledge of the Company,  any other  person  associated  with or acting on
behalf of the Company or any of its subsidiaries including,  without limitation,
any  director,  officer,  agent  or  employee  of  the  Company  or  any  of its
subsidiaries has, directly or indirectly,  while acting on behalf of the Company
or  any  of  its  subsidiaries,  (i)  used  any  corporate  funds  for  unlawful
contributions,  gifts,  entertainment  or other  unlawful  expenses  relating to
political  activity;  (ii) made any  unlawful  payment to  foreign  or  domestic
government officials or employees or to foreign or domestic political parties or
campaigns  from  corporate  funds;  (iii)  violated any provision of the Foreign
Corrupt  Practices  Act of 1977,  as  amended;  or (iv) made any other  unlawful
payment.

               (xxix) The Company has  reviewed its  operations  and that of its
subsidiaries  and  any  third  parties  with  which  the  Company  or any of its
subsidiaries  has a material  relationship  to evaluate  the extent to which the
business  or  operations  of the  Company  or any of its  subsidiaries  will  be
affected by the Year 2000 Problem (defined  below).  As a result of such review,
the Company has no reason to believe,  and does not believe,  that the Year 2000
Problem will have a Material  Adverse Effect,  or result in any material loss or
interference with the Company's business or operations.  The "Year 2000 Problem"
as used herein means any  significant  risk that  computer  hardware or software
used in the receipt, transmission, processing, manipulation, storage, retrieval,
retransmission or other utilization of data or in the operation of mechanical or
electrical  systems of any kind will not,  in the case of dates or time  periods
occurring  after  December 31, 1999,  function at least as effectively as in the
case of dates or time periods occurring prior to January 1, 2000.

               (xxx)  The  Company  does not  believe  that it is,  and upon the
consummation of the transactions  contemplated hereby and the application of the
proceeds as described in the Registration Statement and the Prospectus under the
caption  "Use of  Proceeds"  does not believe  that it will  become,  a "passive
foreign investment company" (herein called a PFIC) as defined in Section 1296 of
the Internal Revenue Code of 1986, as amended (herein called the Code).

               (xxxi) The Company  has not taken and will not take,  directly or
indirectly, any action designed to or that might reasonably be expected to cause
or result in  stabilization  or manipulation of the price of the Ordinary Shares
to facilitate the sale or resale of the Securities.

               (xxxii)  The  Company  has  received  from the Israel  Securities
Authority an exemption  from the  requirement  to publish a prospectus in Israel
for the offer of the Securities in the manner required by the applicable laws of
the State of Israel,  which  exemption  was in full force and effect on the date
hereof  and  which  shall  be in  full  force  and  effect  on the  date  of the
Prospectus,  on the date that any  post-effective  amendment to the Registration
Statement  shall  become  effective,  when any  supplement  or  amendment to the
Prospectus is filed with the Commission, and at each Closing Date. It is further
understood  that no public  offering (as defined  under the laws of the State of

                                       8
<PAGE>
Israel)  pursuant to the  Prospectus  will be made within the State of Israel by
the Company.

               (xxxiii) Each of the Company and the  Subsidiaries is in material
compliance with all conditions and requirements stipulated by the instruments of
approval  issued  by the  Investment  Center of the  Ministry  of  Industry  and
Commerce  granted  entitling  it or any  of its  operations  to  the  status  of
"approved  enterprise"  under  Israeli law and by Israeli  laws and  regulations
relating to such approved  enterprise status except as would not have a Material
Adverse  Effect.  All  information  supplied by the Company with respect to such
applications  was true,  correct and  complete  in all  material  respects  when
supplied to the appropriate authorities. The Company does not know of any reason
or  circumstance  that would lead to  revocation  of its status as an  "approved
enterprise."

               (xxxiv)  Neither the Company  nor any of its  subsidiaries  is in
violation of any  conditions or  requirements  stipulated by the  instruments of
approval  granted  to any of them by the  Office of the Chief  Scientist  in the
Ministry of Industry & Commerce,  with respect to any  research and  development
grants  given to it by such  office,  which  violation,  individually  or in the
aggregate,  would have a Material  Adverse Effect.  The Company  qualifies as an
"Industrial  Company" within the definition of the Law for the  Encouragement of
Industry (Taxes), 1969, of the State of Israel.

               (xxxv) No transfer  tax,  stamp duty or similar tax is payable by
or on behalf of the  Underwriters  in connection  with:  (i) the issuance by the
Company  of  the  Securities;  (ii)  the  purchase  by the  Underwriters  of the
Securities from the Company; (iii) the consummation by the Company of any of its
obligations  under this  Agreement;  or (iv) assuming the  Underwriters  are not
subject to taxation in Israel,  resale of the Securities by the  Underwriters in
connection with the distribution contemplated hereby.

               (xxxvi) The Company has duly and irrevocably  appointed Commtouch
Software  Inc.,  a  corporation  organized  under  the  laws  of  the  State  of
California,  as its agent to receive service of process in any action against it
in any United States federal or state court arising out of or in connection with
the this Agreement or the transactions contemplated hereby.

               (xxxvii)  The   documents   incorporated   by  reference  in  the
Prospectus,  at the time they were or hereafter  are filed with the  Commission,
complied  or when so filed  will  comply,  as the case may be,  in all  material
respects  with the  requirements  of the  Securities  Exchange  Act of 1934,  as
amended, and the rules and regulations  promulgated  thereunder,  and, when read
together and with the other  information in the Prospectus and as such documents
may be modified or superseded by the Prospectus, did not and will not contain an
untrue statement of a material fact or omit to state a material fact required to
be stated therein or necessary in order to make the statements  therein,  in the
light of the circumstances under which they were or are made, not misleading.

          (b) Each Selling  Shareholder  represents  and warrants to, and agrees
with, the several Underwriters as follows:

               (i) Such Selling  Shareholder is the record and beneficial  owner
of, and has, and on the First Closing Date will have, valid and marketable title
to the Securities to be sold by such Selling Shareholder,  free and clear of all
security interests,  claims,  liens,  restrictions on transferability,  legends,
proxies,  equities or other  encumbrances;  and upon delivery of and payment for
such  Securities  hereunder,  the several  Underwriters  will acquire  valid and
marketable  title  thereto,  free and clear of any security  interests,  claims,
liens,  restrictions on  transferability,  legends,  proxies,  equities or other
encumbrances.  Such Selling  Shareholder is selling the Securities to be sold by

                                       9
<PAGE>
such Selling  Shareholder for such Selling  Shareholder's own account and is not
selling such Securities, directly or indirectly, for the benefit of the Company,
and no part of the proceeds of such sale  received by such  Selling  Shareholder
will inure,  either directly or indirectly,  to the benefit of the Company other
than as described in the Registration Statement and Prospectus.

               (ii) Such Selling  Shareholder has duly authorized,  executed and
delivered a Custody Agreement ("Custody Agreement"),  which Custody Agreement is
a valid and binding  obligation  of such  Selling  Shareholder,  to Norwest Bank
Minnesota,  N.A.,  as  Custodian  (the  "Custodian");  pursuant  to the  Custody
Agreement the Selling Shareholder has placed in custody with the Custodian,  for
delivery under this Agreement,  the certificates  representing the Securities to
be sold by such Selling Shareholder; such certificates represent validly issued,
outstanding, fully paid and nonassessable Ordinary Shares; and such certificates
were duly and properly  endorsed in blank for transfer,  or were  accompanied by
all  documents  duly and properly  executed  that are  necessary to validate the
transfer of title thereto, to the Underwriters,  free of any legend, restriction
on transferability, proxy, lien or claim, whatsoever.

               (iii) Such  Selling  Shareholder  has the power and  authority to
enter into this Agreement and to sell, transfer and deliver the Securities to be
sold  by such  Selling  Shareholder;  and  such  Selling  Shareholder  has  duly
authorized,  executed and delivered to Allan Barkat,  as  attorney-in-fact  (the
"Attorney-in-Fact"),  an  irrevocable  power of attorney (a "Power of Attorney")
authorizing and directing the  Attorney-in-Fact  to effect the sale and delivery
of the  Securities  being sold by such Selling  Shareholder,  to enter into this
Agreement and to take all such other action as may be necessary hereunder.

               (iv)  This  Agreement,  the  Custody  Agreement  and the Power of
Attorney have each been duly authorized,  executed and delivered by or on behalf
of such Selling  Shareholder and each constitutes a valid and binding  agreement
of such Selling Shareholder, enforceable in accordance with its terms, except as
rights to indemnity  hereunder or thereunder  may be limited by federal or state
securities laws and except as such  enforceability may be limited by bankruptcy,
insolvency,  reorganization or laws affecting the rights of creditors  generally
and subject to general  principles of equity. The execution and delivery of this
Agreement,  the Custody  Agreement and the Power of Attorney and the performance
of the terms hereof and thereof and the consummation of the transactions  herein
and therein  contemplated will not result in a breach or violation of any of the
terms and  provisions  of, or  constitute  a default  under,  any  agreement  or
instrument to which such Selling Shareholder is a party or by which such Selling
Shareholder is bound, or any law, regulation, order or decree applicable to such
Selling Shareholder; no consent, approval,  authorization or order of, or filing
with,  any court or  governmental  agency or body is required for the execution,
delivery and performance of this Agreement,  the Custody Agreement and the Power
of Attorney or for the consummation of the transactions  contemplated hereby and
thereby,  including  the  sale of the  Securities  being  sold  by such  Selling
Shareholder,  except such as may be required  under the Act or state  securities
laws or blue sky laws.

               (v) Such Selling  Shareholder  has not  distributed  and will not
distribute  any  prospectus or other  offering  material in connection  with the
offering and sale of the Securities other than any Preliminary Prospectus or the
Prospectus or other  materials  permitted by the Act to be  distributed  by such
Selling Shareholder.

               (vi) Such  Selling  Shareholder  has  reviewed  the  Registration
Statement  and  the  Prospectus  and to  the  best  knowledge  of  such  Selling
Shareholder  neither the Registration  Statement nor the Prospectus contains any

                                       10
<PAGE>
untrue statement of a material fact or omits to state any material fact required
to be stated therein or necessary to make the statements  therein not misleading
regarding such Selling Shareholder, the other Selling Shareholders,  the Company
or otherwise.

               (vii) To the best  knowledge  of such  Selling  Shareholder,  the
representations and warranties of the Company contained in paragraph (a) of this
Section 2 are true and correct.

          (c) Any certificate signed by any officer of the Company and delivered
to you or to counsel for the Underwriters  shall be deemed a representation  and
warranty by the Company to each  Underwriter as to the matters covered  thereby;
any certificate  signed by or on behalf of any Selling  Shareholders as such and
delivered  to  you  or to  counsel  for  the  Underwriters  shall  be  deemed  a
representation  and warranty by such Selling  Shareholder to each Underwriter as
to the matters covered thereby.

     3. Purchase, Sale and Delivery of Securities.

     On the  basis of the  representations,  warranties  and  agreements  herein
contained, but subject to the terms and conditions herein set forth, the Company
agrees to issue and sell  1,669,000  Firm Shares,  and each Selling  Shareholder
agrees,  severally and not jointly,  to sell the number of Firm Shares set forth
opposite  the name of such  Selling  Shareholder  on  Schedule I hereto,  to the
several Underwriters, and each Underwriter agrees, severally and not jointly, to
purchase from the Company and the Selling Shareholders the number of Firm Shares
set forth  opposite  the name of such  Underwriter  in Schedule  II hereto.  The
purchase  price for each Firm Share  shall be  **[$__________]  per  share.  The
obligation  of  each  Underwriter  to  each  of  the  Company  and  the  Selling
Shareholders  shall be to  purchase  from each of the  Company  and the  Selling
Shareholders  that number of Firm Shares (to be adjusted by the  Representatives
to avoid  fractional  shares) which represents the same proportion of the number
of Firm Shares to be sold by each of the  Company  and the Selling  Shareholders
pursuant to this  Agreement as the number of Firm Shares set forth  opposite the
name of such Underwriter in Schedule II hereto represents to the total number of
Firm Shares to be purchased by all Underwriters  pursuant to this Agreement.  In
making  this  Agreement,  each  Underwriter  is  contracting  severally  and not
jointly;  except as provided in paragraph (c) of this Section 3 and in Section 8
hereof,  the agreement of each  Underwriter  is to purchase only the  respective
number of Firm Shares specified in Schedule II.

     The Firm Shares will be delivered  by the Company and the  Custodian to you
for the  accounts of the several  Underwriters  against  payment of the purchase
price  therefor  by  certified  or  official  bank check or other next day funds
payable to the order of the Company or the  Custodian,  as  appropriate,  at the
offices of U.S.  Bancorp Piper  Jaffray,  222 South Ninth  Street,  Minneapolis,
Minnesota,  or such other location as may be mutually  acceptable,  at 9:00 a.m.
Central time on the third (or if the Securities are priced,  as  contemplated by
Rule 15c6-1(c) under the Exchange Act, after 4:30 p.m. Eastern time, the fourth)
full business day  following the date hereof,  or at such other time and date as
you and the Company determine pursuant to Rule 15c6-1(a) under the Exchange Act,
such time and date of delivery  being herein  referred to as the "First  Closing
Date." If the Representatives so elect,  delivery of the Firm Shares may be made
by credit  through full fast  transfer to the accounts at The  Depository  Trust
Company designated by the  Representatives.  Certificates  representing the Firm
Shares,  in definitive  form and in such  denominations  and  registered in such
names as you may request  upon at least two  business  days' prior notice to the
Company and the Custodian, will be made available for checking and packaging not

                                       11
<PAGE>
later than 10:30 a.m.,  Central  time,  on the business day next  preceding  the
First Closing Date at the offices of U.S. Bancorp Piper Jaffray, 222 South Ninth
Street,  Minneapolis,  Minnesota,  or such  other  location  as may be  mutually
acceptable.

     On the  basis of the  representations,  warranties  and  agreements  herein
contained, but subject to the terms and conditions herein set forth, the Company
hereby  grants to the  several  Underwriters  an option to  purchase  all or any
portion of the Option Shares at the same purchase price as the Firm Shares,  for
use solely in covering any over-allotments  made by the Underwriters in the sale
and  distribution  of the Firm  Shares.  The  option  granted  hereunder  may be
exercised  at any  time  (but not more  than  once)  within  30 days  after  the
effective  date of this  Agreement  upon  notice  (confirmed  in writing) by the
Representatives  to the Company  setting  forth the  aggregate  number of Option
Shares as to which the several Underwriters are exercising the option, the names
and  denominations  in which the  certificates  for the Option  Shares are to be
registered  and the date and time,  as determined by you, when the Option Shares
are to be delivered,  such time and date being herein referred to as the "Second
Closing" and "Second Closing Date",  respectively;  provided,  however, that the
Second Closing Date shall not be earlier than the First Closing Date nor earlier
than the second  business day after the date on which the option shall have been
exercised. The number of Option Shares to be purchased by each Underwriter shall
be the same  percentage  of the total number of Option Shares to be purchased by
the several  Underwriters  as the number of Firm Shares to be  purchased by such
Underwriter is of the total number of Firm Shares to be purchased by the several
Underwriters,  as  adjusted  by  the  Representatives  in  such  manner  as  the
Representatives  deem  advisable to avoid  fractional  shares.  No Option Shares
shall be sold and  delivered  unless the Firm Shares  previously  have been,  or
simultaneously are, sold and delivered.

     The Option  Shares will be delivered by the Company to you for the accounts
of the several  Underwriters  against  payment of the purchase price therefor by
certified or official bank check or other next day funds payable to the order of
the  Company at the  offices of U.S.  Bancorp  Piper  Jaffray,  222 South  Ninth
Street,  Minneapolis,  Minnesota,  or such  other  location  as may be  mutually
acceptable  at 9:00 a.m.,  Central  time,  on the Second  Closing  Date.  If the
Representatives  so elect,  delivery of the Option  Shares may be made by credit
through  full fast  transfer to the  accounts at The  Depository  Trust  Company
designated by the Representatives.  Certificates  representing the Option Shares
in definitive form and in such denominations and registered in such names as you
have set forth in your notice of option  exercise,  will be made  available  for
checking and packaging not later than 10:30 a.m.,  Central time, on the business
day next preceding the Second  Closing Date at the office of U.S.  Bancorp Piper
Jaffray, 222 South Ninth Street, Minneapolis,  Minnesota, or such other location
as may be mutually acceptable.

     It is understood that you,  individually and not as  Representatives of the
several  Underwriters,  may (but shall not be obligated  to) make payment to the
Company  or the  Selling  Shareholders,  on  behalf of any  Underwriter  for the
Securities  to be purchased by such  Underwriter.  Any such payment by you shall
not relieve any such  Underwriter of any of its obligations  hereunder.  Nothing
herein  contained shall  constitute any of the  Underwriters  an  unincorporated
association or partner with the Company or any Selling Shareholder.

     Notwithstanding anything else in this Agreement, the Underwriters shall not
solicit offers to purchase  Securities in Israel from more than 35 solicitees in
the aggregate and will obtain  confirmation  from such  solicitees that they are
purchasing  such  Securities  for  investment  purposes only and not with a view
toward  distribution  or sale.  On or before the date two days after the Closing
Date, the Underwriters shall furnish the Company, its counsel and the Securities

                                       12
<PAGE>
Authority of the State of Israel (the "ISA") with a list of such solicitees,  if
any (including their name and addresses),  so as to enable the Company to comply
with the terms of the exemption issued by the ISA.

     4. Covenants

          (a) The Company covenants and agrees with the several  Underwriters as
follows:

               (i) If the  Registration  Statement has not already been declared
effective by the Commission,  the Company will use its best efforts to cause the
Registration  Statement  and any  post-effective  amendments  thereto  to become
effective as promptly as  possible;  the Company will notify you promptly of the
time when the  Registration  Statement  or any  post-effective  amendment to the
Registration  Statement has become effective or any supplement to the Prospectus
(including  any term  sheet  within  the  meaning  of Rule 434 of the  Rules and
Regulations)  has  been  filed  and of any  request  by the  Commission  for any
amendment or  supplement  to the  Registration  Statement or the  Prospectus  or
additional  information;  if the Company has elected to rely on Rule 430A of the
Rules and  Regulations,  the Company will prepare and file a Prospectus (or term
sheet  within the meaning of Rule 434 of the Rules and  Regulations)  containing
the  information  omitted  therefrom  pursuant  to Rule  430A of the  Rules  and
Regulations  with  the  Commission  within  the time  period  required  by,  and
otherwise in accordance  with the provisions of, Rules 424(b),  430A and 434, if
applicable,  of the Rules and  Regulations;  if the  Company has elected to rely
upon  Rule  462(b)  of the Rules and  Regulations  to  increase  the size of the
offering  registered  under  the  Act,  the  Company  will  prepare  and  file a
registration  statement with respect to such increase with the Commission within
the time period required by, and otherwise in accordance with the provisions of,
Rule 462(b);  the Company will  prepare and file with the  Commission,  promptly
upon your request,  any amendments or supplements to the Registration  Statement
or the  Prospectus  (including  any term sheet within the meaning of Rule 434 of
the Rules and Regulations) that, in your opinion,  may be necessary or advisable
in connection with the distribution of the Securities by the  Underwriters;  and
the  Company  will not file any  amendment  or  supplement  to the  Registration
Statement or Prospectus (including any term sheet within the meaning of Rule 434
of the Rules and Regulations) to which you shall reasonably  object by notice to
the Company  after having been  furnished a copy a reasonable  time prior to the
filing.

               (ii) The Company will advise you, promptly after it shall receive
notice or obtain knowledge  thereof,  of the issuance by the Commission the ISA,
or any Israeli or other foreign regulatory body of any stop order suspending the
effectiveness  of  the  Registration   Statement,   of  the  suspension  of  the
qualification of the Securities for offering or sale in any jurisdiction,  or of
the initiation or  threatening  of any proceeding for any such purpose;  and the
Company  will  promptly  use its best efforts to (i) prevent the issuance of any
stop order or to obtain its withdrawal if such a stop order should be issued and
(ii) maintain in effect the exemption  granted by the ISA and, if such exemption
shall at any time not be effective,  to obtain the reinstatement  thereof at the
earliest possible moment.

               (iii) Within the time during which a  prospectus  (including  any
term sheet within the meaning of Rule 434 of the Rules and Regulations) relating
to the  Securities  is required to be delivered  under the Act, the Company will
comply as far as it is able with all requirements imposed upon it by the Act, as
now and hereafter  amended,  and by the Rules and  Regulations,  as from time to
time in force,  so far as  necessary  to permit the  continuance  of sales of or
dealings in the  Securities as  contemplated  by the  provisions  hereof and the
Prospectus.  If during such period any event  occurs as a result of which in the

                                       13
<PAGE>
opinion  of counsel  for the  Company or of  counsel  for the  Underwriters  the
Prospectus would include an untrue statement of a material fact or omit to state
a material fact  necessary to make the statements  therein,  in the light of the
circumstances then existing,  not misleading,  or if during such period it is in
the opinion of counsel for the Company of counsel for the Underwriters necessary
to amend the Registration  Statement or supplement the Prospectus to comply with
the Act,  the Company  will  promptly  notify you and will  forthwith  amend the
Registration  Statement  or  supplement  the  Prospectus  (at the expense of the
Company) so as to correct such statement or omission or effect such compliance.

               (iv) The  Company  will  use its  best  efforts  to  qualify  the
Securities  for sale  under the  securities  laws of such  jurisdictions  as you
reasonably  designate and to continue such  qualifications  in effect so long as
required for the  distribution of the Securities,  except that the Company shall
not be required in connection  therewith to qualify as a foreign  corporation or
to execute a general  consent to  service of process in any state.  The  Company
will, from time to time,  prepare and file such statements,  reports,  and other
documents as are or may be required to continue  such  qualifications  in effect
for so long a period  as you may  reasonably  request  for  distribution  of the
Securities.

               (v) The Company  will furnish to the  Underwriters  copies of the
Registration  Statement  (three of which  will be signed  and will  include  all
exhibits), each Preliminary Prospectus,  the Prospectus,  and all amendments and
supplements  (including  any term sheet  within  the  meaning of Rule 434 of the
Rules and Regulations) to such documents,  in each case as soon as available and
in such quantities as you may from time to time reasonably request. Prior to the
filing  thereof  with the  Commission,  the Company will submit to you, for your
information,  a  copy  of  any  post-effective  amendment  to  the  Registration
Statement  and  any  supplement  to the  Prospectus  or any  amended  prospectus
proposed to be filed.

               (vi)  During  a period  of five  years  commencing  with the date
hereof, the Company will (i) submit to the Commission  quarterly reports,  which
will include unaudited quarterly consolidated financial information, on Form 6-K
for the first three  quarters of each fiscal year, and file its annual report on
Form 20-F within the time period prescribed under Section 13 of the Exchange Act
for the filing by domestic issuers of quarterly  reports on Form 10-Q and annual
reports  on Form  10-K,  respectively  and  (ii)  furnish  to  you,  and to each
Underwriter  who may so request in writing,  copies of all  periodic and special
reports  furnished  to  shareholders  of the  Company  and  of all  information,
documents and reports filed with the Commission (including the Report on Form SR
required by Rule 463 of the  Commission  under the  Securities  Act), the Nasdaq
National  Market,  the NASD, or the ISA.  Reports to the ISA may be furnished to
you and to any such  Underwriter  in Hebrew if such reports are not available in
English.

               (vii) The Company will make  generally  available to its security
holders as soon as practicable,  but in any event not later than 15 months after
the end of the Company's  current fiscal quarter,  an earnings  statement (which
need not be audited)  covering a 12-month  period  beginning after the effective
date of the Registration  Statement that shall satisfy the provisions of Section
11(a) of the Act and Rule 158 of the Rules and Regulations.

               (viii) The Company, whether or not the transactions  contemplated
hereunder are consummated or this Agreement is prevented from becoming effective
under the provisions of Section 9(a) hereof or is terminated,  will pay or cause
to be  paid  (A)  all  expenses  (including  transfer  taxes  allocated  to  the
respective  transferees)  incurred  in  connection  with  the  delivery  to  the
Underwriters of the Securities,  (B) all expenses and fees  (including,  without
limitation,  fees and  expenses of the  Company's  accountants  and counsel but,
except as otherwise  provided  below,  not including  fees of the  Underwriters'
counsel) in connection with the preparation,  printing,  filing,  delivery,  and
shipping of the  Registration  Statement  (including  the  financial  statements
therein and all amendments,  schedules,  and exhibits thereto),  the Securities,
each  Preliminary  Prospectus,  the  Prospectus,  and any  amendment  thereof or
supplement thereto, and the printing,  delivery,  and shipping of this Agreement
and other underwriting documents,  including Blue Sky Memoranda,  (C) all filing
fees  and  fees and  disbursements  of the  Underwriters'  counsel  incurred  in
connection with the qualification of the Securities for offering and sale by the

                                       14
<PAGE>
Underwriters  or by dealers under the  securities or blue sky laws of the states
and other  jurisdictions  which you shall  designate in accordance  with Section
4(d) hereof,  (D) the fees and expenses of any transfer agent or registrar,  (E)
the filing fees incident to any required  review by the NASD of the terms of the
sale of the  Securities,  (F) listing  fees, if any, and (G) all other costs and
expenses  incident to the performance of its obligations  hereunder that are not
otherwise  specifically  provided  for  herein.  If the  sale of the  Securities
provided  for  herein is not  consummated  by  reason  of action by the  Company
pursuant to Section 9(a) hereof which  prevents  this  Agreement  from  becoming
effective, or by reason of any failure,  refusal or inability on the part of the
Company or the Selling Shareholders to perform any agreement on their part to be
performed,  or because  any other  condition  of the  Underwriters'  obligations
hereunder required to be fulfilled by the Company or the Selling Shareholders is
not  fulfilled,  the Company will  reimburse  the several  Underwriters  for all
out-of-pocket  disbursements  (including  fees  and  disbursements  of  counsel)
incurred by the Underwriters in connection with their  investigation,  preparing
to market and marketing the Securities or in  contemplation  of performing their
obligations  hereunder.  The Company  shall not in any event be liable to any of
the Underwriters for loss of anticipated  profits from the transactions  covered
by this Agreement.

               (ix) The Company will apply the net proceeds from the sale of the
Securities  to be sold  by it  hereunder  for  the  purposes  set  forth  in the
Prospectus  and will file such reports with the  Commission  with respect to the
sale of the Securities and the  application of the proceeds  therefrom as may be
required in accordance with Rule 463 of the Rules and Regulations.

               (x) The Company will not, without your prior written consent, for
a period  of 90 days  after  the  commencement  of the  public  offering  of the
Securities by the  Underwriters  (the "Lock-Up  Period")  offer for sale,  sell,
contract to sell, grant any option for the sale of or otherwise issue or dispose
of any Ordinary Shares or any securities  convertible into or exchangeable  for,
or any options or rights to purchase or acquire,  Ordinary Shares, except to the
Underwriters  pursuant to this  Agreement and except for the issuance of options
pursuant to the Company's 1996 CSI Stock Option Plan,  1999 Israeli Share Option
Plan, 1999 Nonemployee  Directors Plan and the 1999 Employee Stock Purchase Plan
(each as  described  in the  Registration  Statement  and the  Prospectus)  (the
"Plans") and pursuant to the exercise of stock  options or warrants  outstanding
on the  date  hereof;  provided,  that no such  option  shall  vest  and  become
exercisable  prior to the end of the Lock-Up  Period.  The Company agrees not to
accelerate  the vesting of any option or warrant or the lapse of any  repurchase
right prior to the expiration of the Lock-Up Period.

               (xi) The Company either has caused to be delivered to you or will
cause to be delivered  to you prior to the  effective  date of the  Registration
Statement  a  letter  (the  "Lock-Up  Agreement")  from  each of the  **[Selling
Shareholders]  stating that such person agrees that,  from the date of execution

                                       15
<PAGE>
of this  Agreement  and  continuing  to and including the date 90 days after the
date of the  Prospectus,  he or she will not publicly or privately  announce any
intention to, will not allow any affiliate or subsidiary, if applicable, to, and
will not itself, without the prior written consent of U.S. Bancorp Piper Jaffray
on behalf of the Underwriters,  (i) offer, pledge, sell, offer to sell, contract
to sell,  sell any option or contract to purchase,  purchase any option to sell,
grant any option, right or warrant to purchase, or otherwise transfer or dispose
of, directly or indirectly,  any Ordinary  Shares or any securities  convertible
into, or exercisable or exchangeable  for,  Ordinary Shares,  or (ii) enter into
any swap or other  agreement  that  transfers,  in whole or in part,  any of the
economic  consequences  of ownership of any  Ordinary  Shares or any  securities
convertible  into, or exercisable or exchangeable  for, Ordinary Shares (whether
any such  transaction  described in clause (i) or (ii) above is to be settled by
delivery of Ordinary Shares or such other securities,  in cash or otherwise), in
each case,  beneficially  owned  (within  the  meaning  of Rule 13d-3  under the
Securities  Exchange  Act of 1934,  as amended) or otherwise  controlled  by the
shareholder  on the  date  of the  Lock-Up  Agreement  or  thereafter  acquired;
provided,  however,  that, if the shareholder is an individual,  the shareholder
may,  without the prior written consent of U.S.  Bancorp Piper Jaffray on behalf
of the  Underwriters,  transfer  Ordinary  Shares or any securities  convertible
into, or exercisable or exchangeable  for,  Ordinary Shares either during his or
her lifetime or, on death, by will or intestacy to members of the  shareholder's
immediate  family or to trusts  exclusively  for the  benefit  of members of the
shareholder's  immediate family or in connection with bona fide gifts;  provided
that,  prior  to any such  transfer,  such  transferee  executes  an  agreement,
satisfactory  to U.S.  Bancorp Piper Jaffray,  pursuant to which such transferee
agrees to receive and hold such shares  subject to the provisions of the Lock-Up
Agreement and that there shall be no further  transfer except in accordance with
the  provisions  of the  Lock-Up  Agreement.  For  purposes  of this  paragraph,
"Immediate  family"  shall mean the  shareholder's  spouse,  lineal  descendant,
father, mother, brother or sister.

               (xii) The  Company  has not taken and will not take,  directly or
indirectly,  any action  designed  to or which might  reasonably  be expected to
cause or result in, or which has constituted,  the stabilization or manipulation
of the price of any security of the Company to facilitate  the sale or resale of
the  Securities,  and has not  effected  any sales of Ordinary  Shares which are
required to be disclosed in response to Item 701 of Regulation S-K under the Act
which have not been so disclosed in the Registration Statement.

               (xiii) The Company will not incur any  liability for any finder's
or broker's fee or agent's  commission  in  connection  with the  execution  and
delivery of this Agreement or the consummation of the transactions  contemplated
hereby.

               (xiv) The Company will inform the Florida  Department  of Banking
and Finance at any time prior to the  consummation  of the  distribution  of the
Securities  by the  Underwriters  if it commences  engaging in business with the
government  of Cuba or with any  person  or  affiliate  located  in  Cuba.  Such
information  will be provided within 90 days after the  commencement  thereof or
after a change occurs with respect to previously reported information.

               (xv) The Company will use its best efforts to ensure that it will
not become a PFIC to the extent  consistent with its other business  objectives.
If it believes it is a PFIC, the Company will promptly  notify each U.S.  holder
of the Ordinary Shares (the "U.S.  Holders") in order to enable U.S.  Holders to
consider  whether  to make a QEF  election  or a mark to  market  election.  The
Company  will  further   comply  with  the  applicable   information   reporting
requirements for U.S. Holders to make such elections.

                                       16
<PAGE>
               (xvi) The Company is familiar with the Investment Company Act and
will conduct its affairs in such a manner to ensure that the Company was not and
will not be an "investment  company" or a company "controlled" by an "investment
company" within the meaning of the Investment Company Act.

               (xvii) To the extent that, and for as long as, the laws of Israel
or any other  foreign  jurisdiction  require  any  permit  for  approval  by, or
exemption of any local authority of the transactions  contemplated  hereby to be
legally permitted and to remain effective,  the Company will obtain and maintain
each such permit, approval or exemption valid and in full force and effect.

               (xviii) In any suit  (whether in a court in the United  States or
any other jurisdiction) seeking enforcement of this Agreement,  or provisions of
this  Agreement,  (i) no defense  (other  than a  procedural  defense)  given or
allowed by the laws of any other  state or country  shall be  interposed  in any
suit,  action or proceeding  hereon unless such defense is also given or allowed
by the laws of the State of  Minnesota,  or of the  United  States,  (ii) if the
plaintiffs  therein seek a judgment in United States  dollars,  the Company will
not interpose any defense or objection to or otherwise oppose judgment,  if any,
being awarded in such currency, and (iii) if the plaintiffs therein seek to have
any judgment (or any aspect thereof) awarded in foreign currency linked, for the
period from entry of such judgment until actual payment thereof in full has been
made, to the changes in the foreign currency-United States dollar exchange rate,
the Company will not interpose  any defense or objection to or otherwise  oppose
inclusion of such linkage in any such judgment.  The Company agrees that it will
not initiate or seek to initiate any action, suit or proceeding, in Israel or in
any other jurisdiction other than the United States,  seeking damages or for the
purpose  of  obtaining  any  injunction  or  declaratory  judgment  against  the
enforcement  of or a declaratory  judgment  concerning any alleged breach by the
Company of or other claim by you in respect of,  this  Agreement  or any of your
rights under this Agreement,  including without  limitation any action,  suit or
proceeding  challenging  the  enforceability  of or seeking to invalidate in any
respect the submission by the Company  hereunder to the  jurisdiction of federal
or  Minnesota  State  courts  or the  designation  of the  laws of the  State of
Minnesota as the law applicable to this Agreement.

               (xix) If any payment of any sum due under this Agreement from the
Company is made to or received by the Underwriters or any controlling  person of
any  Underwriter  in a currency  other than freely  transferable  United  States
dollars,  whether by judicial  judgment or  otherwise,  the  obligations  of the
Company under this Agreement  shall be discharged  only to the extent of the net
amount of freely  transferable  United States dollars that the  Underwriters  or
such  controlling  persons,  as the case may be, in accordance  with normal bank
procedures,  are able to  lawfully  purchase  with  such  amount  of such  other
currency.  To the extent that the Underwriters or such  controlling  persons are
not able to purchase  sufficient  United States dollars with such amount of such
other currency to discharge the  obligations of the Company to the  Underwriters
or such  controlling  persons,  as the case may be, shall not be discharged with
respect to such difference,  and any such  undischarged  amount will be due as a
separate  obligation  and shall not be affected by payment or of judgment  being
obtained for any other sums due under or in respect of this Agreement.

               (xx) The Company will use its best efforts to effect and maintain
the quotation of the Ordinary Shares on the Nasdaq National Market.

                                       17
<PAGE>
          (b) Each  Selling  Shareholder  covenants  and agrees with the several
Underwriters as follows:

               (i) Except as otherwise  agreed to by the Company and the Selling
Shareholder,  such  Selling  Shareholder  will  pay all  taxes,  if any,  on the
transfer and sale,  respectively,  of the Securities  being sold by such Selling
Shareholder,  the fees of such  Selling  Shareholder's  counsel and such Selling
Shareholder's  proportionate  share (based upon the number of  Securities  being
offered by such Selling Shareholder  pursuant to the Registration  Statement) of
all costs and expenses (except for legal and accounting expenses and fees of the
registrar and transfer agent) incurred by the Company pursuant to the provisions
of Section 4(a)(viii) of this Agreement;  provided,  however,  that each Selling
Shareholder severally agrees to reimburse the Company for any reimbursement made
by the Company to the Underwriters  pursuant to Section 4(a)(viii) hereof to the
extent such  reimbursement  resulted  from the failure or refusal on the part of
such  Selling  Shareholder  to  comply  under the  terms or  fulfill  any of the
conditions of this Agreement.

               (ii) If this  Agreement  shall be terminated by the  Underwriters
because  of any  failure,  refusal  or  inability  on the  part of such  Selling
Shareholder  to perform any agreement on such Selling  Shareholder's  part to be
performed,  or because  any other  condition  of the  Underwriters'  obligations
hereunder required to be fulfilled by such Selling Shareholder is not fulfilled,
such Selling  Shareholder  agrees to reimburse the several  Underwriters for all
out-of-pocket disbursements (including fees and disbursements of counsel for the
Underwriters)   incurred  by  the   Underwriters   in   connection   with  their
investigation,   preparing  to  market  and  marketing  the   Securities  or  in
contemplation of performing their obligations hereunder. The Selling Shareholder
shall  not in any  event  be  liable  to any of the  Underwriters  for  loss  of
anticipated profits from the transactions covered by this Agreement.

               (iii)  The  Securities  to be sold by such  Selling  Shareholder,
represented by the  certificates  on deposit with the Custodian  pursuant to the
Custody  Agreement of such Selling  Shareholder,  are subject to the interest of
the several  Underwriters and the other Selling  Shareholders;  the arrangements
made for such  custody  are,  except as  specifically  provided  in the  Custody
Agreement,   irrevocable;  and  the  obligations  of  such  Selling  Shareholder
hereunder  shall not be  terminated,  except as provided in this Agreement or in
the Custody Agreement,  by any act of such Selling Shareholder,  by operation of
law,  whether  by  the  liquidation,  dissolution  or  merger  of  such  Selling
Shareholder,  by the death of such Selling Shareholder,  or by the occurrence of
any other event. If any Selling  Shareholder should liquidate,  dissolve or be a
party to a merger or if any other such event should occur before the delivery of
the Securities  hereunder,  certificates  for the Securities  deposited with the
Custodian  shall be delivered by the Custodian in accordance  with the terms and
conditions  of this  Agreement as if such  liquidation,  dissolution,  merger or
other event had not occurred,  whether or not the Custodian  shall have received
notice thereof.

               (iv)  Selling  Shareholder  has not  taken  and  will  not  take,
directly or  indirectly,  any action  designed to or which might  reasonably  be
expected to cause or result in stabilization or manipulation of the price of any
security of the Company to facilitate the sale or resale of the Securities,  and
has not effected any sales of Ordinary Shares which, if effected by the Company,
would be required to be disclosed in response to Item 701 of Regulation S-K.

               (v) Such Selling  Shareholder shall immediately notify you if any
event  occurs,  or of  any  change  in  information  relating  to  such  Selling
Shareholder  or the  Company or any new  information  relating to the Company or
relating  to any  matter  stated in the  Prospectus  or any  supplement  thereto

                                       18
<PAGE>
(including  any term  sheet  within  the  meaning  of Rule 434 of the  Rules and
Regulations),  which results in the  Prospectus (as  supplemented)  including an
untrue  statement  of a material  fact or  omitting to state any  material  fact
necessary to make the statements  therein,  in light of the circumstances  under
which they were made, not misleading.

               (vi) In any suit  (whether in a court in the United States or any
other jurisdiction) seeking enforcement of this Agreement, or provisions of this
Agreement,  (i) no defense (other than a procedural defense) given or allowed by
the laws of any other state or country shall be  interposed in any suit,  action
or proceeding hereon unless such defense is also given or allowed by the laws of
the State of Minnesota or of the United States,  (ii) if the plaintiffs  therein
seek a judgment in United  States  dollars,  the Selling  Shareholders  will not
interpose  any defense or  objection to or otherwise  oppose  judgment,  if any,
being awarded in such currency, and (iii) if the plaintiffs therein seek to have
any judgment (or any aspect thereof) awarded in foreign currency linked, for the
period from entry of such judgment until actual payment thereof in full has been
made, to the changes in the foreign currency-United States dollar exchange rate,
the Selling  Shareholders  will not  interpose  any defense or  objection  to or
otherwise  oppose  inclusion of such linkage in any such  judgment.  The Selling
Shareholders  agrees that it will not  initiate or seek to initiate  any action,
suit or proceeding, in Israel or in any other jurisdiction other than the United
States,  seeking  damages or for the  purpose of  obtaining  any  injunction  or
declaratory  judgment  against  the  enforcement  of or a  declaratory  judgment
concerning any alleged breach by the Selling  Shareholders  of or other claim by
you in respect of, this  Agreement or any of your rights  under this  Agreement,
including  without  limitation any action,  suit or proceeding  challenging  the
enforceability  of or seeking to invalidate in any respect the submission by the
Selling Shareholders hereunder to the jurisdiction of federal or Minnesota State
courts  or the  designation  of the laws of the  State of  Minnesota  as the law
applicable to this Agreement.

     5. Conditions of Underwriters' Obligations.  The obligations of the several
Underwriters hereunder are subject to the accuracy, as of the date hereof and at
each of the First  Closing Date and the Second  Closing Date (as if made at such
Closing  Date),  of and  compliance  with all  representations,  warranties  and
agreements of the Company and the Selling Shareholders  contained herein, to the
performance  by the Company and the Selling  Shareholders  of their  obligations
hereunder and to the following additional conditions:

          (a) The  Registration  Statement shall have become effective not later
than 5:00 p.m., Central time, on the date of this Agreement,  or such later time
and date as you, as Representatives of the several  Underwriters,  shall approve
and all filings required by Rules 424, 430A and 434 of the Rules and Regulations
shall have been timely made; no stop order  suspending the  effectiveness of the
Registration  Statement or any  amendment  thereof  shall have been  issued;  no
proceedings  for the  issuance  of such an order  shall have been  initiated  or
threatened;  and any request of the Commission for additional information (to be
included in the  Registration  Statement or the  Prospectus or otherwise)  shall
have been complied with to your satisfaction.

          (b)  The  legality  and  sufficiency  of the  sale  of the  Securities
hereunder  and the  validity  and  form  of the  certificates  representing  the
Securities,  all corporate  proceedings and other legal matters  incident to the
foregoing,  and the form of the  Registration  Statement  and of the  Prospectus
(except  as to the  financial  statements  contained  therein),  shall have been
approved at or prior to the Closing  Date by Faegre & Benson LLP,  U.S.  counsel
for  the  Underwriters,   and  Yigal  Arnon  &  Co.,  Israeli  counsel  for  the
Underwriters.

                                       19
<PAGE>
          (c)  No   Underwriter   shall  have   advised  the  Company  that  the
Registration Statement or the Prospectus, or any amendment thereof or supplement
thereto  (including  any term sheet  within the meaning of Rule 434 of the Rules
and  Regulations),  contains an untrue statement of fact which, in your opinion,
is material, or omits to state a fact which, in your opinion, is material and is
required to be stated  therein or necessary to make the  statements  therein not
misleading.

          (d)  Except  as  contemplated  in the  Prospectus,  subsequent  to the
respective dates as of which information is given in the Registration  Statement
and the Prospectus,  neither the Company nor any of its subsidiaries  shall have
incurred any material  liabilities  or  obligations,  direct or  contingent,  or
entered into any  material  transactions,  or declared or paid any  dividends or
made any  distribution of any kind with respect to its share capital;  and there
shall not have been any change in the share capital  (other than a change in the
number of  outstanding  Ordinary  Shares due to the  issuance of shares upon the
exercise of  outstanding  options or  warrants),  or any material  change in the
short-term  or  long-term  debt of the  Company,  or any  issuance  of  options,
warrants,  convertible  securities  or  other  rights  to  purchase  the  equity
securities of the Company or any of its  subsidiaries,  or any material  adverse
change or any  development  involving  a  prospective  material  adverse  change
(whether  or not arising in the  ordinary  course of  business),  in the general
affairs, condition (financial or otherwise),  business, key personnel, property,
prospects,   net  worth  or  results  of  operations  of  the  Company  and  its
subsidiaries,  taken as a whole, that, in your judgment, makes it impractical or
inadvisable  to offer or deliver the  Securities  on the terms and in the manner
contemplated in the Registration Statement or the Prospectus.

          (e) On each Closing Date,  there shall have been  furnished to you, as
Representatives of the several  Underwriters,  the opinion of McCutchen,  Doyle,
Brown & Enersen, LLP, U.S. counsel for the Company,  dated such Closing Date and
addressed to you, covering the matters set forth in Schedule III hereto.

          In  rendering  such opinion such counsel may rely (i) as to matters of
law other than California and federal law, upon the opinion or opinions of local
counsel  provided  that the extent of such reliance is specified in such opinion
and that such counsel shall state that such opinion or opinions of local counsel
are  satisfactory  to them and that they believe  they and you are  justified in
relying thereon and (ii) as to matters of fact, to the extent such counsel deems
reasonable  upon  certificates  of officers of the Company and its  subsidiaries
provided that the extent of such reliance is specified in such opinion.

          (f) On each Closing Date,  there shall have been  furnished to you, as
Representatives of the several Underwriters,  the opinion of Naschitz, Brandes &
Co,  Israeli  counsel for the Company,  dated such Closing Date and addressed to
you, covering the matters set forth in Schedule IV hereto.

          In  rendering  such opinion such counsel may rely (i) as to matters of
law other than  Israeli  law,  upon the  opinion or  opinions  of local  counsel
provided  that the extent of such reliance is specified in such opinion and that
such  counsel  shall state that such  opinion or  opinions of local  counsel are
satisfactory to them and that they believe they and you are Justified in relying
thereon  and (ii) as to  matters  of fact,  to the  extent  such  counsel  deems
reasonable  upon  certificates  of officers of the Company and its  subsidiaries
provided that the extent of such reliance is specified in such opinion.

          (g) On each Closing Date,  there shall have been  furnished to you, as
Representatives  of the several  Underwriters,  such  opinion or  opinions  from
Faegre & Benson LLP, U.S. counsel for the several Underwriters,  and Yigal Arnon

                                       20
<PAGE>
& Co., Israeli counsel for the several Underwriters, dated such Closing Date and
addressed  to  you,  with  respect  to  the  validity  of  the  Securities,  the
Registration  Statement,  the  Prospectus  and  other  related  matters  as  you
reasonably  may request,  and such counsel  shall have  received such papers and
information as they request to enable them to pass upon such matters.

          (h) On each  Closing  Date  you,  as  Representatives  of the  several
Underwriters,  shall have received a letter of Kost, Forer & Gabbay (a member of
Ernst & Young International), dated such Closing Date and addressed to you:

               (i)  confirming  that  they are  independent  public  accountants
within  the  meaning  of the Act  and  are in  compliance  with  the  applicable
requirements  relating to the  qualifications  of accountants under Rule 2-01 of
Regulation S-X of the Commission,

               (ii) stating that,  in their  opinion,  the audited  consolidated
financial  statements  and  schedules  examined  by  them  and  included  in the
Registration  Statement  and the  Prospectus  comply  in  form  in all  material
respects with the applicable  accounting  requirements  of the Act and the Rules
and Regulations,

               (iii) stating, as of the date of such letter (or, with respect to
matters involving changes or developments since the respective dates as of which
specified  financial  information is given in the  Prospectus,  as of a date not
more than five  days  prior to the date of such  letter),  the  conclusions  and
findings  of said firm  with  respect  to the  financial  information  and other
matters covered by its letter delivered to you  concurrently  with the execution
of this  Agreement,  and the  effect of the  letter so to be  delivered  on such
Closing Date shall be to confirm the  conclusions and findings set forth in such
prior letter,

               (iv) stating that, at a specific date not more than five business
days  prior to the date of such  letter,  there  were any  changes  in the share
capital or long-term  debt of the Company or any decrease in net current  assets
or shareholders'  equity of the Company in each case compared with amounts shown
on the December  31, 1999 audited  consolidated  balance  sheet  included in the
Registration  Statement  and the  Prospectus,  or for the period from January 1,
2000 to such  specified  date there were any  decreases,  as  compared  with the
comparable  period of the prior fiscal  quarter,  in total sales of services and
license fees, income before taxes or total or per share amounts of net income of
the Company,  except in all  instances  for changes,  decreases or increases set
forth in such letter,

               (v)  stating  that  they  have  carried  out  certain   specified
procedures,  not  constituting  an  audit,  with  respect  to  certain  amounts,
percentages  and  financial  information  that  are  derived  from  the  general
accounting records of the Company and are included in the Registration Statement
and the Prospectus, including the amounts, percentages and financial information
included under the captions "Summary Consolidated Financial and Operating Data,"
"Capitalization,"  "Selected  Consolidated  Financial  and  Operating  Data" and
"Management's  Discussion  and  Analysis of Financial  Condition  and Results of
Operations,"   and  have  compared  such  amounts,   percentages  and  financial
information with such records of the Company and with  information  derived from
such records and have found them to be in agreement,  excluding any questions of
legal interpretation.

          (i) On each Closing Date,  there shall have been  furnished to you, as
Representatives of the Underwriters, a certificate,  dated such Closing Date and
addressed  to you,  signed  by the  chief  executive  officer  and by the  chief
financial officer of the Company, to the effect that:

                                       21
<PAGE>
               (i) The  representations  and  warranties  of the Company in this
Agreement are true and correct,  in all material respects,  as if made at and as
of such Closing Date,  and the Company has complied with all the  agreements and
satisfied  all the  conditions  on its part to be  performed  or satisfied at or
prior to such Closing Date;

               (ii) No stop order or other order suspending the effectiveness of
the Registration  Statement or any amendment thereof or the qualification of the
Securities  for offering or sale has been  issued,  and no  proceeding  for that
purpose has been instituted or, to the best of their knowledge,  is contemplated
by the Commission or any state or regulatory body; and

               (iii) The signers of said certificate have carefully examined the
Registration  Statement  and the  Prospectus,  and  any  amendments  thereof  or
supplements  thereto (including any term sheet within the meaning of Rule 434 of
the Rules and  Regulations),  and (A) such documents  contain all statements and
information required to be included therein, the Registration  Statement, or any
amendment  thereof,  does not contain any untrue statement of a material fact or
omit to state any material  fact  required to be stated  therein or necessary to
make the statements  therein not misleading,  and the Prospectus,  as amended or
supplemented,  does not include any untrue statement of material fact or omit to
state a material fact necessary to make the statements  therein, in light of the
circumstances  under  which  they  were  made,  not  misleading,  (B)  since the
effective  date of the  Registration  Statement,  there  has  occurred  no event
required to be set forth in an amended or supplemented  prospectus which has not
been  so  set  forth,  (C)  subsequent  to  the  respective  dates  as of  which
information is given in the Registration  Statement and the Prospectus,  neither
the Company nor any of its subsidiaries has incurred any material liabilities or
obligations,  direct or contingent,  or entered into any material  transactions,
not in the  ordinary  course of business,  or declared or paid any  dividends or
made any distribution of any kind with respect to its share capital,  and except
as  disclosed  in the  Prospectus,  there  has not been any  change in the share
capital  (other  than a change in the number of  outstanding  shares of Ordinary
Shares due to the issuance of shares upon the exercise of outstanding options or
warrants),  or any material  change in the short-term or long-term  debt, or any
issuance  of  options,  warrants,  convertible  securities  or other  rights  to
purchase the equity securities,  of the Company, or any of its subsidiaries,  or
any Material Adverse Effect or any development  involving a prospective Material
Adverse Effect,  and (D) except as stated in the Registration  Statement and the
Prospectus,  there  is not  pending,  or,  to  the  knowledge  of  the  Company,
threatened or contemplated,  any action, suit or proceeding to which the Company
or any of its  subsidiaries  is a party  before or by any court or  governmental
agency, authority or body, or any arbitrator, which might result in any Material
Adverse Effect.

          (j) On each Closing Date,  there shall have been  furnished to you, as
Representatives  of the several  Underwriters,  the  opinion of  ______________,
counsel for the Selling  Shareholders,  dated such Closing Date and addressed to
you, to the effect that:

               (i)  Each of the  Selling  Shareholders  is the sole  record  and
beneficial  owner of the Securities to be sold by such Selling  Shareholder  and
delivery  of the  certificates  for the  Securities  to be sold by each  Selling
Shareholder   pursuant  to  this  Agreement,   upon  payment   therefor  by  the
Underwriters,  will pass marketable title to such Securities to the Underwriters
and the Underwriters will acquire all the rights of such Selling  Shareholder in
the  Securities  (assuming  the  Underwriters  have no  knowledge  of an adverse
claim),  free  and  clear  of any  security  interests,  claims,  liens or other
encumbrances.

               (ii) Each of the Selling Shareholders has the power and authority
to enter into the Custody  Agreement,  the Power of Attorney and this  Agreement
and to perform and discharge such Selling Shareholder's  obligations  thereunder

                                       22
<PAGE>
and  hereunder;  and this  Agreement,  the Custody  Agreements and the Powers of
Attorney have been duly and validly authorized, executed and delivered by (or by
the  Attorney-in-Fact  on behalf of) the Selling  Shareholders and are valid and
binding agreements of the Selling  Shareholders,  enforceable in accordance with
their  respective  terms (except as rights to indemnity  hereunder or thereunder
may be  limited  by  federal  or  state  securities  laws  and  except  as  such
enforceability  may be  limited by  bankruptcy,  insolvency,  reorganization  or
similar  laws  affecting  creditors'  rights  generally  and  subject to general
principles of equity).

               (iii) The execution and delivery of this  Agreement,  the Custody
Agreement and the Power of Attorney and the  performance of the terms hereof and
thereof and the consummation of the transactions herein and therein contemplated
will not result in a breach or violation of any of the terms and  provisions of,
or constitute a default under, any statute, rule or regulation, or any agreement
or instrument known to such counsel to which such Selling Shareholder is a party
or by which such Selling Shareholder is bound or to which any of its property is
subject,  any such  Selling  Shareholder's  charter or by-laws,  or any order or
decree  known to such counsel of any court or  government  agency or body having
jurisdiction over such Selling Shareholder or any of its respective  properties;
and no consent,  approval,  authorization or order of, or filing with, any court
or  governmental  agency or body is required  for the  execution,  delivery  and
performance of this Agreement,  the Custody  Agreement and the Power of Attorney
or for the  consummation of the  transactions  contemplated  hereby and thereby,
including  the sale of the  Securities  being sold by such Selling  Shareholder,
except such as may be required  under the Act or state  securities  laws or blue
sky laws.

               (iv) Under the laws of __________________,  the (i) submission by
the  Selling  Shareholders  to the  jurisdiction  of any  federal or state court
sitting in the City of  Minneapolis,  Minnesota,  (ii)  waiver,  to the  fullest
extent it may effectively do so, of any objection which the Selling Shareholders
may now or  hereafter  have to the  laying of venue of any such  proceeding  and
(iii)  submission by the Selling  Shareholders to the exclusive  jurisdiction of
such courts in any such suit, action or proceeding, are binding upon the Selling
Shareholders  and,  if  properly  brought  to  the  attention  of the  court  or
administrative  body in  accordance  with  the laws of  _____________,  would be
enforceable in any judicial or administrative proceeding in --------------.

               (v) Such other matters as you may reasonably request.

               In rendering such opinion such counsel may rely (i) as to matters
of law other than **[appropriate jurisdiction] and federal law, upon the opinion
or  opinions  of local  counsel  provided  that the extent of such  reliance  is
specified in such opinion and that such counsel shall state that such opinion or
opinions of local  counsel are  satisfactory  to them and that they believe they
and you are justified in relying  thereon and (ii) as to matters of fact, to the
extent  such  counsel  deems  reasonable  upon  certificates  of officers of the
Company  and its  subsidiaries  provided  that the  extent of such  reliance  is
specified in such opinion.

               (k) On each Closing Date, there shall have been furnished to you,
as Representatives of the several  Underwriters,  a certificate or certificates,
dated such  Closing  Date and  addressed  to you,  signed by each of the Selling
Shareholders or such Selling  Shareholder's  Attorney-in-Fact to the effect that
the representations and warranties of such Selling Shareholder contained in this
Agreement  are true and correct as if made at and as of such Closing  Date,  and
that such Selling Shareholder has complied with all the agreements and satisfied

                                       23
<PAGE>
all the  conditions  on such  Selling  Shareholder's  part  to be  performed  or
satisfied at or prior to such Closing Date.

               (l) Subsequent to the execution of this Agreement or, if earlier,
the  dates  as of which  information  is  given  in the  Registration  Statement
(exclusive  of any  amendment  thereto)  and the  Prospectus  (exclusive  of any
supplement  thereto),  there  shall  not have been (i) any  change  or  decrease
specified  in the  letter or letters  referred  to in  subparagraph  (h) of this
Section 5 or (ii) any change, or any development  involving a prospective change
(including without limitation a change in management or control of the Company),
in or affecting the business or  properties of the Company and its  subsidiaries
the effect of which, in any case referred to in clause (i) or (ii) above, is, in
the  judgment  of the  Representatives,  so  material  and adverse as to make it
impractical  or  inadvisable  to proceed  with the  offering  or delivery of the
Securities  as  contemplated  in the  Registration  Statement  (exclusive of any
amendment thereof) and the Prospectus (exclusive of any supplement thereto);

               (m) At the  execution of this  Agreement,  the Company shall have
furnished to the Representatives  from each Selling Shareholder an executed copy
of the Lock-Up Agreement addressed to the Representatives;

               (n) Prior to the  commencement of the offering of the Securities,
the  Securities  shall have been approved for  quotation on the Nasdaq  National
Market, subject to official notice of issuance; and

               (o) The Company  shall have  furnished to you and counsel for the
Underwriters such additional documents, certificates and evidence as you or they
may have reasonably requested.

               All such opinions, certificates, letters and other documents will
be in compliance  with the provisions  hereof only if they are  satisfactory  in
form and  substance  to you and counsel for the  Underwriters.  The Company will
furnish you with such conformed copies of such opinions,  certificates,  letters
and other documents as you shall reasonably request.

     6. Indemnification and Contribution.

          (a) The Company and each Selling  Shareholder  agrees to indemnify and
hold  harmless  each  Underwriter  against  any  losses,   claims,   damages  or
liabilities,  joint or several,  to which such  Underwriter  may become subject,
under the Act or otherwise  (including in  settlement of any  litigation if such
settlement  is  effected  with the written  consent of the  Company  and/or such
Selling  Shareholders,  as the case may be),  insofar  as such  losses,  claims,
damages or liabilities (or actions in respect thereof) arise out of or are based
upon an  untrue  statement  or  alleged  untrue  statement  of a  material  fact
contained in the Registration Statement,  including the information deemed to be
a part of the Registration  Statement at the time of  effectiveness  pursuant to
Rules  430A  and  434(d)  of the  Rules  and  Regulations,  if  applicable,  any
Preliminary Prospectus,  the Prospectus,  or any amendment or supplement thereto
(including  any term  sheet  within  the  meaning  of Rule 434 of the  Rules and
Regulations), or arise out of or are based upon the omission or alleged omission
to state therein a material  fact required to be stated  therein or necessary to
make the statements therein not misleading,  and will reimburse each Underwriter
for any legal or other  expenses  reasonably  incurred by it in connection  with
investigating  or  defending  against  such loss,  claim,  damage,  liability or
action; provided,  however, that neither the Company nor any Selling Shareholder
shall be  liable  in any such  case to the  extent  that any such  loss,  claim,
damage,  liability or action arises out of or is based upon an untrue  statement
or  alleged  untrue  statement  or  omission  or  alleged  omission  made in the
Registration Statement, any Preliminary Prospectus,  the Prospectus, or any such
amendment  or  supplement,  in  reliance  upon and in  conformity  with  written

                                       24
<PAGE>
information  furnished to the Company by you, or by any Underwriter through you,
specifically for use in the preparation thereof; and further provided,  however,
that in no event shall any Selling Shareholder be liable under the provisions of
this Section 6 for any amount in excess of the aggregate amount of proceeds such
Selling  Shareholder  received from the sale of the Securities  pursuant to this
Agreement.

          In addition to their other  obligations  under this Section 6(a),  the
Company and each Selling  Shareholder  agrees that, as an interim measure during
the pendency of any claim,  action,  investigation,  inquiry or other proceeding
arising out of or based upon any statement or omission, or any alleged statement
or  omission,   described  in  this  Section  6(a),  they  will  reimburse  each
Underwriter on a monthly basis for all  reasonable  legal fees or other expenses
incurred in connection with  investigating or defending any such claim,  action,
investigation,  inquiry or other  proceeding,  notwithstanding  the absence of a
judicial  determination as to the propriety and  enforceability of the Company's
and/or the Selling  Shareholder's  obligation to reimburse the  Underwriters for
such expenses and the possibility that such payments might later be held to have
been improper by a court of competent jurisdiction.  To the extent that any such
interim reimbursement payment is so held to have been improper,  the Underwriter
that received such payment shall promptly return it to the party or parties that
made such payment,  together with interest,  compounded daily, determined on the
basis of the prime rate (or other  commercial  lending rate for borrowers of the
highest credit  standing)  announced from time to time by Money Rates section of
the Wall Street  Journal  (the "Prime  Rate").  Any such  interim  reimbursement
payments  which are not made to an  Underwriter  within 30 days of a request for
reimbursement  shall  bear  interest  at the  Prime  Rate  from the date of such
request.  This indemnity agreement shall be in addition to any liabilities which
the Company or the Selling Shareholders may otherwise have.

          (b) Each  Underwriter will indemnify and hold harmless the Company and
each Selling Shareholder against any losses,  claims,  damages or liabilities to
which the Company and the Selling Shareholders may become subject, under the Act
or otherwise  (including in settlement of any litigation,  if such settlement is
effected with the written consent of such Underwriter),  insofar as such losses,
claims,  damages or liabilities (or actions in respect  thereof) arise out of or
are based upon an untrue  statement  or alleged  untrue  statement of a material
fact contained in the Registration Statement,  any Preliminary  Prospectus,  the
Prospectus,  or any amendment or supplement  thereto  (including  any term sheet
within the meaning of Rule 434 of the Rules and Regulations), or arise out of or
are based upon the omission or alleged omission to state therein a material fact
required to be stated  therein or necessary to make the  statements  therein not
misleading, in each case to the extent, but only to the extent, that such untrue
statement or alleged untrue  statement or omission or alleged  omission was made
in the Registration Statement,  any Preliminary Prospectus,  the Prospectus,  or
any such  amendment  or  supplement,  in reliance  upon and in  conformity  with
written  information  furnished  to the Company by you,  or by such  Underwriter
through you, specifically for use in the preparation thereof, and will reimburse
the  Company  and the  Selling  Shareholders  for any  legal or  other  expenses
reasonably incurred by the Company or any such Selling Shareholder in connection
with investigating or defending against any such loss, claim, damage,  liability
or action.

          (c) Promptly  after receipt by an indemnified  party under  subsection
(a) or (b) above of notice of the  commencement of any action,  such indemnified
party  shall,  if a  claim  in  respect  thereof  is  to  be  made  against  the
indemnifying  party  under such  subsection,  notify the  indemnifying  party in
writing  of  the  commencement  thereof;  but  the  omission  so to  notify  the

                                       25
<PAGE>
indemnifying  party shall not relieve the indemnifying  party from any liability
that it may have to any  indemnified  party.  In case any such  action  shall be
brought  against any  indemnified  party,  and it shall notify the  indemnifying
party of the commencement  thereof,  the indemnifying party shall be entitled to
participate  in, and, to the extent that it shall wish,  jointly  with any other
indemnifying  party  similarly  notified,  to assume the defense  thereof,  with
counsel  satisfactory  to such  indemnified  party,  and after  notice  from the
indemnifying  party  to  such  indemnified  party  of the  indemnifying  party's
election so to assume the defense thereof,  the indemnifying  party shall not be
liable to such  indemnified  party under such  subsection for any legal or other
expenses  subsequently incurred by such indemnified party in connection with the
defense thereof other than reasonable costs of investigation; provided, however,
that if, in the sole  judgment of the  Representatives,  it is advisable for the
Underwriters   to  be   represented  as  a  group  by  separate   counsel,   the
Representatives shall have the right to employ a single counsel to represent the
Representatives  and all  Underwriters  who may be subject to liability  arising
from any claim in respect of which  indemnity may be sought by the  Underwriters
under  subsection (a) of this Section 6, in which event the reasonable  fees and
expenses of such separate  counsel shall be borne by the  indemnifying  party or
parties and reimbursed to the  Underwriters  as incurred (in accordance with the
provisions of the second  paragraph in subsection  (a) above).  An  indemnifying
party shall not be  obligated  under any  settlement  agreement  relating to any
action under this Section 6 to which it has not agreed in writing.

          (d)  If  the  indemnification  provided  for  in  this  Section  6  is
unavailable  or  insufficient  to  hold  harmless  an  indemnified  party  under
subsection (a) or (b) above,  then each  indemnifying  party shall contribute to
the amount paid or payable by such indemnified  party as a result of the losses,
claims,  damages or liabilities  referred to in subsection (a) or (b) above, (i)
in such proportion as is appropriate to reflect the relative  benefits  received
by the Company and the Selling Shareholders on the one hand and the Underwriters
on the other  from the  offering  of the  Securities  or (ii) if the  allocation
provided  by clause  (i)  above is not  permitted  by  applicable  law,  in such
proportion as is appropriate to reflect not only the relative  benefits referred
to in clause  (i)  above  but also the  relative  fault of the  Company  and the
Selling  Shareholders  on the one  hand  and the  Underwriters  on the  other in
connection  with the  statements  or  omissions  that  resulted in such  losses,
claims,  damages  or  liabilities,  as  well  as any  other  relevant  equitable
considerations.  The relative  benefits  received by the Company and the Selling
Shareholders  on the one hand and the  Underwriters on the other shall be deemed
to be in the same proportion as the total net proceeds from the offering (before
deducting expenses) received by the Company and the Selling Shareholders bear to
the total underwriting  discounts and commissions  received by the Underwriters,
in each case as set forth in the table on the cover page of the Prospectus.  The
relative fault shall be determined by reference to, among other things,  whether
the untrue or alleged  untrue  statement  of a material  fact or the omission or
alleged omission to state a material fact relates to information supplied by the
Company,  the Selling Shareholders or the Underwriters and the parties' relevant
intent,  knowledge,  access to information and opportunity to correct or prevent
such untrue statement or omission. The Company, the Selling Shareholders and the
Underwriters  agree  that it would not be just and  equitable  if  contributions
pursuant to this  subsection  (d) were to be determined  by pro rata  allocation
(even if the Underwriters were treated as one entity for such purpose) or by any
other  method  of  allocation  which  does not  take  account  of the  equitable
considerations  referred to in the first  sentence of this  subsection  (d). The
amount paid by an indemnified party as a result of the losses,  claims,  damages
or liabilities referred to in the first sentence of this subsection (d) shall be
deemed  to  include  any legal or other  expenses  reasonably  incurred  by such

                                       26
<PAGE>
indemnified  party in connection  with  investigating  or defending  against any
action or claim which is the subject of this subsection (d). Notwithstanding the
provisions  of  this  subsection  (d),  no  Underwriter  shall  be  required  to
contribute  any amount in excess of the amount by which the total price at which
the Securities  underwritten by it and distributed to the public were offered to
the public exceeds the amount of any damages that such Underwriter has otherwise
been  required to pay by reason of such untrue or alleged  untrue  statement  or
omission or alleged omission.  No person guilty of fraudulent  misrepresentation
(within  the  meaning  of  Section  11(f)  of the  Act)  shall  be  entitled  to
contribution   from  any  person   who  was  not   guilty  of  such   fraudulent
misrepresentation.  The  Underwriters'  obligations  in this  subsection  (d) to
contribute   are  several  in  proportion  to  their   respective   underwriting
obligations and not joint.

          (e) The obligations of the Company and the Selling  Shareholders under
this Section 6 shall be in addition to any  liability  which the Company and the
Selling  Shareholders  may otherwise have and shall extend,  upon the same terms
and conditions,  to each person, if any, who controls any Underwriter within the
meaning of the Act; and the obligations of the Underwriters under this Section 6
shall be in addition  to any  liability  that the  respective  Underwriters  may
otherwise  have and shall extend,  upon the same terms and  conditions,  to each
director of the Company (including any person who, with his consent, is named in
the  Registration  Statement as about to become a director of the  Company),  to
each  officer of the Company who has signed the  Registration  Statement  and to
each person, if any, who controls the Company or any Selling  Shareholder within
the meaning of the Act.

     7. Representations and Agreements to Survive Delivery. All representations,
warranties,  and agreements of the Company herein or in  certificates  delivered
pursuant hereto, and the agreements of the several Underwriters, the Company and
the Selling  Shareholders  contained in Section 6 hereof, shall remain operative
and in full  force and  effect  regardless  of any  investigation  made by or on
behalf of any Underwriter or any controlling  person thereof,  or the Company or
any  of  its  officers,  directors,  or  controlling  persons,  or  any  Selling
Shareholders or any controlling  person thereof,  and shall survive delivery of,
and payment for, the Securities to and by the Underwriters hereunder.

     8. Substitution of Underwriters.

          (a) If any Underwriter or  Underwriters  shall fail to take up and pay
for the amount of Firm Shares agreed by such  Underwriter or  Underwriters to be
purchased  hereunder,  upon  tender of such Firm Shares in  accordance  with the
terms  hereof,  and the amount of Firm Shares not  purchased  does not aggregate
more  than 10% of the total  amount of Firm  Shares  set  forth in  Schedule  II
hereto, the remaining Underwriters shall be obligated to take up and pay for (in
proportion to their respective  underwriting  obligations hereunder as set forth
in Schedule II hereto  except as may  otherwise be  determined  by you) the Firm
Shares that the  withdrawing  or  defaulting  Underwriters  agreed but failed to
purchase.

          (b) If any Underwriter or  Underwriters  shall fall to take up and pay
for the amount of Firm Shares agreed by such  Underwriter or  Underwriters to be
purchased  hereunder,  upon  tender of such Firm Shares in  accordance  with the
terms hereof,  and the amount of Firm Shares not purchased  aggregates more than
10% of the total  amount of Firm  Shares set forth in  Schedule  II hereto,  and
arrangements  satisfactory  to you for the purchase of such Firm Shares by other
persons are not made within 36 hours thereafter, this Agreement shall terminate.
In the  event  of any such  termination  neither  the  Company  nor any  Selling
Shareholder  shall be under any  liability  to any  Underwriter  (except  to the
extent provided in Section  4(a)(viii),  Section  4(b)(ii) and Section 6 hereof)

                                       27
<PAGE>
nor shall any  Underwriter  (other than an  Underwriter  who shall have  failed,
otherwise than for some reason  permitted under this Agreement,  to purchase the
amount of Firm Shares agreed by such  Underwriter to be purchased  hereunder) be
under any  liability to the Company or the Selling  Shareholders  (except to the
extent provided in Section 6 hereof).

          If Firm Shares to which a default  relates are to be  purchased by the
non-defaulting   Underwriters   or  by  any   other   party  or   parties,   the
Representatives  or the  Company  shall  have the  right to  postpone  the First
Closing Date for not more than seven  business  days in order that the necessary
changes in the Registration  Statement,  Prospectus and any other documents,  as
well as any  other  arrangements,  may be  effected.  As used  herein,  the term
"Underwriter"  includes any person  substituted  for an  Underwriter  under this
Section 8.

     9. Effective Date of this Agreement and Termination.

          (a) This Agreement shall become effective at 10:00 a.m., Central time,
on the first full business day following the effective date of the  Registration
Statement,  or at such earlier time after the effective time of the Registration
Statement as you in your discretion  shall first release the Securities for sale
to the public;  provided, that if the Registration Statement is effective at the
time this Agreement is executed,  this Agreement shall become  effective at such
time as you in your  discretion  shall first release the  Securities for sale to
the public.  For the purpose of this Section,  the Securities shall be deemed to
have been released for sale to the public upon release by you of the publication
of a newspaper  advertisement relating thereto or upon release by you of telexes
offering the Securities for sale to securities  dealers,  whichever  shall first
occur. By giving notice as hereinafter  specified before the time this Agreement
becomes effective,  you, as Representatives of the several Underwriters,  or the
Company may prevent this Agreement from becoming  effective without liability of
any party to any other party,  except that the provisions of Section 4(a)(viii),
Section 4(b)(ii) and Section 6 hereof shall at all times be effective.

          (b) You, as  Representatives of the several  Underwriters,  shall have
the right to terminate this Agreement by giving notice as hereinafter  specified
at any time at or prior to the First Closing Date, and the option referred to in
Section  3(b),  if  exercised,  may be cancelled at any time prior to the Second
Closing Date, if (i) the Company shall have failed,  refused or been unable,  at
or prior to such  Closing  Date,  to  perform  any  agreement  on its part to be
performed hereunder,  (ii) any other condition of the Underwriters'  obligations
hereunder is not fulfilled,  (iii) trading on the New York Stock Exchange or the
American  Stock  Exchange  shall have been  wholly  suspended,  (iv)  minimum or
maximum  prices for trading shall have been fixed,  or maximum ranges for prices
for securities  shall have been required,  on the New York Stock Exchange or the
American Stock  Exchange,  by such Exchange or by order of the Commission or any
other governmental authority having jurisdiction, (v) a banking moratorium shall
have  been  declared  by  Federal  or New York  authorities,  or (vi)  there has
occurred  any material  adverse  change in the  financial  markets in the United
States or an outbreak of major  hostilities (or an escalation  thereof) in which
the United  States is involved,  a  declaration  of war by  Congress,  any other
substantial national or international  calamity or any other event or occurrence
of a similar character shall have occurred since the execution of this Agreement
that, in your judgment,  makes it impractical or inadvisable to proceed with the
completion of the sale of and payment for the Securities.  Any such  termination
shall be  without  liability  of any party to any other  party  except  that the
provisions of Section 4(a)(viii), Section 4(b)(ii) and Section 6 hereof shall at
all times be effective.

                                       28
<PAGE>
          (c) If you elect to prevent this Agreement from becoming  effective or
to terminate  this  Agreement as provided in this  Section,  the Company and the
Attorney-in-Fact,  on  behalf of the  Selling  Shareholders,  shall be  notified
promptly by you by telephone or  telegram,  confirmed by letter.  If the Company
elects  to  prevent  this  Agreement  from  becoming  effective,   you  and  the
Attorney-in-Fact,  on behalf of the Selling  Shareholders,  shall be notified by
the Company by telephone or telegram, confirmed by letter.

     10. Default by One or More of the Selling  Shareholders or the Company.  If
one or more of the Selling  Shareholders shall fail at the First Closing Date to
sell and deliver the number of  Securities  which such  Selling  Shareholder  or
Selling Shareholders are obligated to sell hereunder,  and the remaining Selling
Shareholders  do not exercise the right hereby granted to increase,  pro rata or
otherwise,  the number of Securities  to be sold by them  hereunder to the total
number of  Securities  to be sold by all  Selling  Shareholders  as set forth in
Schedule I, then the Underwriters may at your option,  by notice from you to the
Company and the non-defaulting  Selling Shareholders,  either (a) terminate this
Agreement without any liability on the part of any  non-defaulting  party or (b)
elect to  purchase  the  Securities  which the  Company  and the  non-defaulting
Selling Shareholders have agreed to sell hereunder.

     In the event of a default by any Selling Shareholder as referred to in this
Section  10,  either  you  or  the  Company  or,  by  joint  action  only,   the
non-defaulting  Selling  Shareholders shall have the right to postpone the First
Closing  Date for a period  not  exceeding  seven  days in order to  effect  any
required  changes in the  Registration  Statement or  Prospectus or in any other
documents or arrangements.

     If the Company shall fail at the First Closing Date to sell and deliver the
number  of  Securities  which  it is  obligated  to sell  hereunder,  then  this
Agreement   shall   terminate   without  any   liability  on  the  part  of  any
non-defaulting party.

     No action taken  pursuant to this Section  shall relieve the Company or any
Selling  Shareholders so defaulting  from liability,  if any, in respect of such
default.

     11. Information Furnished by Underwriters.  The statements set forth in the
last  paragraph of the cover page and under the caption  "Underwriting,"  in any
Preliminary  Prospectus and in the Prospectus constitute the written information
furnished  by or on  behalf of the  Underwriters  referred  to in  Section 2 and
Section 6 hereof.

     12.  Notices.  Except as  otherwise  provided  herein,  all  communications
hereunder shall be in writing or by telegraph and, if to the Underwriters, shall
be mailed,  telegraphed  or delivered to the  Representatives  c/o U.S.  Bancorp
Piper Jaffray, 222 South Ninth Street, Minneapolis, Minnesota 55402, except that
notices  given to an  Underwriter  pursuant to Section 6 hereof shall be sent to
such  Underwriter  at the  address  stated  in the  Underwriters'  Questionnaire
furnished  by such  Underwriter  in  connection  with this  offering;  if to the
Company, shall be mailed, telegraphed or delivered to it at 3945 Freedom Circle,
Santa  Clara,  California  95054,  Attention:  James  Collins;  if to any of the
Selling Shareholders, at the address of the Attorney-in-Fact as set forth in the
Powers of  Attorney,  or in each case to such other  address as the person to be
notified may have  requested in writing.  All notices given by telegram shall be
promptly  confirmed  by letter.  Any party to this  Agreement  may chancre  such
address for notices by sending to the parties to this  Agreement  written notice
of a new address for such purpose.

     13. Persons Entitled to Benefit of Agreement. This Agreement shall inure to
the  benefit  of and be binding  upon the  parties  hereto and their  respective
successors  and assigns and the  controlling  persons,  officers  and  directors
referred  to in Section 6.  Nothing in this  Agreement  is  intended or shall be
construed  to  give to any  other  person,  firm or  corporation  any  legal  or

                                       29
<PAGE>
equitable remedy or claim under or in respect of this Agreement or any provision
herein  contained.  The term  "successors  and assigns" as herein used shall not
include any purchaser,  as such purchaser,  of any of the Securities from any of
the several Underwriters.

     14.  Governing  Law. This  Agreement  shall be governed by and construed in
accordance with the laws of the State of Minnesota.

     15. Agent for Service of Process; Jurisdiction.  Each of the parties hereto
irrevocably (i) agrees that any legal suit, action or proceeding  arising out of
or based upon this  Agreement  or the  transactions  contemplated  hereby may be
instituted in any Federal or State Court in the City of Minneapolis,  Minnesota,
(ii) waives, to the fullest extent it may effectively do so, any objection which
it may now or hereafter  have to the laying of venue of any such  proceeding and
(iii)  submits to the  exclusive  jurisdiction  of such courts in any such suit,
action or  proceeding.  The Company  hereby  designates  and appoints  Commtouch
Software Inc. as its authorized agent (the "Authorized Agent") upon whom process
may be served in any such action  arising out of or based on this  Agreement  or
the  transactions  contemplated  hereby which may be instituted in any Minnesota
Court  by any  Underwriter  or by  any  person  who  controls  any  Underwriter,
expressly  consents to the jurisdiction of any such court in respect of any such
action,  and  waives  any  other  requirements  of  or  objections  to  personal
jurisdiction with respect thereto.  Such appointment shall be irrevocable unless
and until a successor  authorized  agent acceptable to the Underwriters in their
sole and absolute  discretion  shall have been  appointed  by the  Company.  The
Company  represents and warrants that the Authorized  Agent has agreed to act as
such  agent for  service  at  process  and  agrees  to take any and all  action,
including  the  filing of any and all  documents  and  instruments,  that may be
necessary to continue  such  appointment  in full force and effect as aforesaid.
Service of process upon the Authorized  Agent and written notice of such service
to the Company shall be deemed,  in every respect,  effective service of process
upon the Company.

     16.  Judgment  Currency.  In respect of any judgment or order given or made
for any amount  due  hereunder  that is  expressed  and paid in a currency  (the
"judgment  currency") other than United States dollars,  the Company and Selling
Shareholders,  as the case may be, will indemnify each  Underwriter  against any
loss  incurred by such  Underwriter  as a result of any variation as between (i)
the rate of exchange at which the United States dollar amount is converted  into
the  judgment  currency  for the purpose of such  judgment or order and (ii) the
rate of exchange at which such Underwriter on the date such judgment currency is
actually  received by the  Underwriter is able to purchase United States dollars
with the amount of the judgment  currency so received by such  Underwriter.  The
foregoing  indemnity shall  constitute a separate and independent  obligation of
the Company and Selling Shareholders and shall continue in full force and effect
notwithstanding  any such  judgment  or order as  aforesaid.  The term  "rate of
exchange" shall include any premiums and costs of exchange payable in connection
with the purchase of or conversion into United States dollars.

                            [Signature Page Follows]

                                       30
<PAGE>
     Please  sign and return to the  Company  the  enclosed  duplicates  of this
letter  whereupon  this  letter  will  become a binding  agreement  between  the
Company,  the Selling  Shareholders  and the several  Underwriters in accordance
with its terms.

                                        Very truly yours,
                                        COMMTOUCH SOFTWARE LTD.

                                        By
                                             -----------------------------------
                                        Its:
                                             -----------------------------------

                                        SELLING SHAREHOLDERS

                                        By
                                             -----------------------------------
                                                     Attorney-in-Fact

Confirmed as of the date first above
mentioned, on behalf of themselves and the
other several Underwriters named in Schedule
II hereto.

U.S. BANCORP PIPER JAFFRAY
THOMAS WEISEL PARTNERS LLC
  INCORPORATED
WARBURG DILLON READ, LLC
  a subsidiary of UBS AG
WILLIAM BLAIR & COMPANY
BY U.S. BANCORP PIPER JAFFRAY

By
   --------------------------------
          Managing Director
<PAGE>
                                   SCHEDULE I

                              Selling Shareholders

                                                                      Number of
                                                                     Firm Shares
Name                                                                  to be Sold
- ----                                                                  ----------
Israel Growth Fund L.P.                                                400,000
k.t. Concord Venture Fund (Cayman), L.P.                               331,810
k.t. Concord Venture Fund (Israel), L.P.                                66,340
k.t. Concord Venture Advisors (Cayman), L.P.                             2,719
k.t. Concord Venture Advisors (Israel), L.P.                               531
Gideon Mantel                                                          100,000
Amir Lev                                                               100,000
Isabel Maxwell                                                          50,000
James E. Collins                                                        20,000
Nahum Sharfman                                                         165,000
Nomura International Plc.                                               31,000
Oceanic Bank and Trust Ltd.                                             31,800
Rumson Capital, L.L.C.                                                  31,800

                                       31
<PAGE>
                                   SCHEDULE II

                              List of Underwriters

Underwriter                                             Number of Firm Shares(2)
- -----------                                             ---------------------
U.S. Bancorp Piper Jaffray Inc.........................
Thomas Weisel Partners LLC.............................
Warburg Dillon Read, LLC...............................
William Blair & Company................................
                                                               =========
Total Underwriters (_____)                                     3,000,000
                                                               =========

- ----------
(2)  The Underwriters may purchase up to an additional 450,000 Option Shares, to
     the  extent the  option  described  in  Section  3(b) of the  Agreement  is
     exercised, in the proportions and in the manner described in the Agreement.
<PAGE>
                                  SCHEDULE III

                                [To be provided]









<PAGE>
                                   SCHEDULE IV

                                [To be provided]





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