COMMTOUCH SOFTWARE LTD
F-1, 2000-03-06
COMMUNICATIONS SERVICES, NEC
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    As filed with the Securities and Exchange Commission on March   , 2000
                                                    Registration No. 333-

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


                      SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

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

                                   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>

<TABLE>
<CAPTION>

                                       CALCULATION OF REGISTRATION FEE
============================================================================================================
                                                              Proposed         Proposed
          Title of Each Class                                 Maximum           Maximum        Amount of
             of Securities                Amount to be     Offering Price      Aggregate      Registration
           Being Registered                Registered       Per Unit(2)     Offering Price        Fee
- -------------------------------------------------------------------------------------------------------------
<S>                                     <C>               <C>              <C>               <C>
Ordinary shares, NIS 0.05 nominal value
 per share   ..........................  3,450,000(1)(2)      $54.3125      $187,378,125.00    $49,468.00
============================================================================================================
<FN>

(1)  Includes  1,669,000  ordinary  shares  offered by the Company and 1,331,000
     ordinary  shares  offered by selling  shareholders.  Also includes  450,000
     shares  subject to an  over-allotment  option granted by the Company to the
     underwriters.

(2)  Estimated   solely  for  the  purpose  of  computing   the  amount  of  the
     registration  fee  pursuant to Rule 457(c) based on the average of the high
     and low prices of the Company's  ordinary  shares as reported on the Nasdaq
     National Market System on February 28, 2000.
</FN>
</TABLE>


<PAGE>

[Diagram  showing  email as the core  application  surrounded  by various  other
features such as, clockwise from the top, wireless,  unified  messaging,  opt-in
programs,  PDAs,  management  tools,  instant  messaging,  synchronization,  pop
access, file storage, calendar, international language support, email marketing,
security and file sharing.]



<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  ______, 2000

3,000,000 Shares

COMMTOUCH SOFTWARE LTD.
                                                  [COMMTOUCH LOGO GOES HERE]
Ordinary Shares

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

*    Commtouch   Software  Ltd.  is  offering   1,669,000   shares  and  selling
     shareholders are offering 1,331,000 shares.

*    Our ordinary  shares are  currently  traded on the Nasdaq  National  Market
     under the symbol  "CTCH." On March __, 2000,  the last reported sales price
     of an ordinary share on the Nasdaq National Market was $______ per share.


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


This investment involves risk. See "Risk Factors" beginning on page 5.


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

                                          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.

We  have  applied  to  the Israel Securities Authority for an exemption from the
obligation  to  publish  an  Israeli  prospectus  relating  to this offering. If
received,  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>
                               TABLE OF CONTENTS

<CAPTION>
                                                                                        Page
                                                                                        ----
<S>                                                                                     <C>
Summary  ..............................................................................    1
Risk Factors   ........................................................................    4
Use of Proceeds   .....................................................................   15
Market Price and Price Range for Ordinary Shares   ....................................   15
Dividend Policy   .....................................................................   16
Capitalization    .....................................................................   17
Principal and Selling Shareholders  ...................................................   18
Selected Consolidated Financial Information  ..........................................   20
Management's Discussion and Analysis of Financial Condition and Results of Operations     21
Business    ...........................................................................   28
Management  ...........................................................................   43
Certain Transactions    ...............................................................   54
Description of Share Capital  .........................................................   57
Shares Eligible for Future Sale  ......................................................   62
U.S. Tax Considerations Regarding Ordinary Shares Acquired by U.S. Taxpayers  .........   63
Israeli Taxation and Investment Programs  .............................................   67
Conditions In Israel    ...............................................................   71
Underwriting   ........................................................................   73
Legal Matters  ........................................................................   75
Experts  ..............................................................................   75
ISA Exemption  ........................................................................   75
Where You Can Find More Information    ................................................   75
Enforceability of Civil Liabilities    ................................................   76
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.


                                       i


<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  Limited 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 ________  ordinary  shares upon the assumed net  exercise at an
assumed  share price of $____ 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  there  were  over  180  million email boxes in the
United  States  and  over 180 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:

*    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.

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

*    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.

*    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.

*    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.

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


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



                                       1


<PAGE>

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

*    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     _______ 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 Securityholders 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 the shares being offered by the Company in
this  prospectus)  is  based  on the number of shares outstanding as of December
31, 1999, and:

    * assumes  the  issuance  of  868,706  ordinary  shares upon the assumed net
      exercise  at  an  assumed  share price of $54 per share, approximately the
      average  closing  price  for February 15 through February 29, 2000, 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;

    * with respect to financial information, is reported in U.S. dollars;

and does not include:

    * 1,383,110  ordinary  shares  issuable upon exercise of outstanding options
      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;


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

                                       2


<PAGE>

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

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

    *  773,420  ordinary  shares  issuable upon  exercise of options  granted to
       officers  and  directors  as of December  31, 1999 at a weighted  average
       exercise price of $8.20 per share; and

    *  the issuance of 4,860 ordinary  shares upon exercise of a warrant held by
       an investor in  Commtouch at an exercise  price of $3.61 per share.  Such
       warrant was  outstanding  as of December  31, 1999 and was net  exercised
       into 4,461 ordinary shares subsequent to December 31, 1999.


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

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)         (2.54)
Weighted average number of shares -- basic
 and diluted  .......................................       1,450         1,450          7,787
</TABLE>

The following data is presented:

    *  on an actual basis; and

    *  on a pro forma  basis to give  effect  to the  issuance  of  ____________
       ordinary  shares upon the assumed net exercise at an assumed  share price
       of $54.40 per share of an  in-the-money  warrant  to  purchase  1,136,000
       ordinary shares issued to Go2Net

    *  on a pro forma as adjusted  basis to give effect to the sale of 1,669,000
       ordinary  shares at an assumed  offering price of $____ per share and the
       application of the estimated net proceeds of $________.

>
                                          December 31, 1999
                                      --------------------------
                                                    Pro Forma
                                       Actual      As Adjusted
                                      ----------   -------------
Consolidated Balance Sheet Data:
 Cash and cash equivalents   ......   $ 65,996        $
 Marketable securities ............     18,050
 Working capital    ...............     88,053
 Total assets    ..................    100,336
 Long-term liabilities    .........        497
 Shareholders' equity  ............     95,312


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



                                       3


<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:

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

                                       4


<PAGE>

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

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

    *  pricing of our services; and

    *  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  minimum  commitment  fee  to  one  based
primarily  on  charging a per-emailbox fee with minimum 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


                                       5


<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.


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.


                                       6


<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,  including  Microsoft,  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.


                                       7


<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 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.


                                       8


<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).


                                       9


<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 but is not expected to 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


                                       10


<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 will
experience  immediate dilution to the extent the purchase price of the shares is
lower  than  the pro forma 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  57%  of  our  outstanding  ordinary  shares.
Immediately  following  the  offering,  they  will  own approximately 45% of our
outstanding  ordinary  shares  (44% if 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  13%  of our outstanding ordinary shares (12% if 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


                                       11


<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:

    *  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;

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

    *  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:

    *  difficulties and costs of staffing and managing international operations;

    *  fluctuations in currency exchange rates;

    *  imposition of currency exchange controls;

    *  differing technology standards;

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

    *  difficulties  in collecting  accounts  receivable  and longer  collection
       periods;

    *  unexpected changes in regulatory requirements;

    *  political and economic instability;

    *  potentially adverse tax consequences; and

    *  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.


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  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


                                       12


<PAGE>

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.


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

Since  the  establishment  of  the State of Israel in 1948, a state of hostility
has  existed,  varying  in  degree  and  intensity,  between the Israel and 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.

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 executive 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


                                       13


<PAGE>

for  our  agent  to accept service of process in connection with any other claim
and  it  may therefore be 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  "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.


                                       14


<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 a  public  offering  price of  $________  per  share,  after
deducting the underwriting  discounts and commissions and the estimated offering
expenses  payable  by us  (which  are  estimated  to be  $________  million,  or
$________  million if the  underwriters'  over-allotment  option is exercised in
full)  are  estimated  to  be  $________  million   ($________  million  if  the
underwriters' over-allotment option is exercised in full).

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

     *  expansion of our sales and marketing activities;

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

     *  expansion of research and development activities;

     *  expansion of our international operations; and

     *  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.


<TABLE>
               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.  There are 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
, 2000 the last reported sales price of an ordinary share on the Nasdaq National
Market was $________ per share.

<CAPTION>
                                                                     Common Stock Price
                                                                   -----------------------
                                                                     High         Low
                                                                   ----------   ----------
<S>                                                                <C>          <C>
Fiscal Year Ending December 31, 2000
   Period from January 1, 2000 through March __, 2000  .........    $            $
Year Ending December 31, 1999:    ..............................    $ 59.500     $  9.750
   Quarter ended September 30, 1999 (from July 13, 1999)  ......    $ 25.875     $  9.750
   Quarter ended December 31, 1999   ...........................    $ 59.500     $ 13.875
</TABLE>


                                       15


<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.")


                                       16


<PAGE>

                                CAPITALIZATION

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

The following data is presented:

     *  on an actual basis; and

     *  On a pro  forma  as  adjusted  basis to give  effect  to (1) the sale of
        1,669,000 ordinary shares in this offering, at a price of $[ ] per share
        and (2) the  issuance  of 868,706  ordinary  shares upon the assumed net
        exercise  at an assumed  share  price of $54.40 per share,  the  average
        closing  price  for  February  15  through  February  29,  2000,  of  an
        in-the-money  warrant to purchase 1,136,000 ordinary shares to be issued
        to Go2Net, Inc. 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;
   [__________] shares issued and outstanding pro forma as adjusted  ...          213            --
 Additional paid-in capital   ..........................................      133,403            --
 Stock-based employee deferred compensation  ...........................       (5,779)           --
 Notes receivable from shareholders    .................................       (1,060)           --
 Accumulated other comprehensive income   ..............................           63            --
 Accumulated deficit    ................................................      (31,528)           --
                                                                            ---------      ---------
      Total shareholders' equity    ....................................       95,312            --
                                                                            ---------      ---------
      Total capitalization    ..........................................    $  95,809      $     --
                                                                            =========      =========
</TABLE>

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

     *  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;

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

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

     *  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.

                                       17


<PAGE>

                      PRINCIPAL AND SELLING SHAREHOLDERS

The  following  table  presents information with respect to beneficial ownership
of  our  ordinary  shares as of December 31, 1999 and as adjusted to reflect the
sale of the shares offered by this prospectus by:

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

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

     *  all executive officers and directors as a group, and

     *  the Selling Shareholders.

<TABLE>
The  table includes all shares issuable within 60 days of December 31, 1999 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  16,068,050  ordinary  shares
outstanding  as of December 31, 1999, and 18,267,720 ordinary shares outstanding
immediately  following the completion of this offering, 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.

<CAPTION>
                                                     Shares Beneficially                   Shares Beneficially
                                                   Owned Prior to Offering    Shares       Owned After Offering
                                                   -----------------------    to be      -----------------------
             Name of Beneficial Owner               Number       Percent      Sold        Number       Percent
- -------------------------------------------------- -----------   ---------   ---------   -----------   ---------
<S>                                                <C>           <C>         <C>         <C>           <C>
Thomas Camp(1)   ................................. 2,217,792       13.8             0    2,217,792       12.5
  c/o Go2Net, Inc.
  999 3rd Avenue, Suite 4700
  Seattle, WA 98104
HarbourVest-Evergreen L.P.   ..................... 1,435,050        8.9             0    1,435,050        8.1
  55 St. Claire Avenue West, Suite 225
  Toronto, Ontario M4V 247
Allan Barkat(2)  ................................. 1,203,842        7.5       400,000      803,842        4.5
  Israel Growth Fund L.P.
  c/o Apax-Leumi Inc.
  15 Portland Place
  London, England
Yoseph Sela(3)   .................................   834,346        5.2             0      834,346        4.7
  Entities affiliated with Gemini Israel Fund L.P.
  11 Galgaley Haplada St. Bldg. 3
  P.O. Box 12226, Herzelia
  46733 Israel   .................................
Yair Safrai(4)   .................................   838,900        5.2       401,400      437,500        2.5
  Entities affiliated with Concord Group
  11 Galgaley Haplada St. Bldg. 3
  P.O. Box 12226, Herzelia
  46733 Israel
Oceanic Bank and Trust Ltd.  .....................    31,800         *         31,800            0          0
  ------------
  ------------ , Bahamas
Rumson Capital, L.L.C.    ........................    31,800         *         31,800            0          0
  ------------
  ------------
Jafco Ltd. Group/Nomura   ........................   340,720        2.1        31,000      309,720        1.7
  ------------
  ------------
James E. Collins(5)    ...........................   100,660         *         20,000       80,660         *
  c/o Commtouch Software, Inc.
  3945 Freedom Circle, Suite 730
  Santa Clara, California 95054
</TABLE>

                                       18


<PAGE>


<TABLE>
<CAPTION>
                                                     Shares Beneficially                         Shares Beneficially
                                                   Owned Prior to Offering        Shares        Owned After Offering
                                                ------------------------------     to be       -----------------------
           Name of Beneficial Owner                  Number          Percent       Sold         Number       Percent
- ----------------------------------------------- ------------------   ---------   -----------   -----------   ---------
<S>                                             <C>                  <C>         <C>           <C>           <C>
Amir Lev(6)   .................................       519,780           3.2         100,000       419,780       2.3
  c/o Commtouch Software Ltd.
  6 Hazoran Street
  Poleg Industrial Park, P.O. Box 8511
  Netanya 42504, Israel
Gideon Mantel(7) ..............................       587,220           3.6         100,000       487,220       2.7
  c/o CommTouch Software, Inc.
  3945 Freedom Circle, Suite 730
  Santa Clara, California 95054
Isabel Maxwell(8)   ...........................       210,120           1.3          50,000       160,120        *
  c/o CommTouch Software, Inc.
  3945 Freedom Circle, Suite 730
  Santa Clara, California 95054
Nahum Sharfman   ..............................       788,420           4.9         165,000       623,420       3.5
  22 Hameyasdim St., Karkur
  37064 Israel
All executive officers and directors as a group
 (19 persons)    ..............................     8,166,241(9)       49.4       1,071,400     7,094,841      39.0
<FN>
- ------------
*  Less than one percent.

(1) Represents  896,057  shares purchased in the private placement by Go2Net and
    868,706  shares  exercisable  under  a  warrant  granted  to Go2Net on a net
    exercise  basis.  All  shares  reflected in the table as well as the warrant
    itself  are  currently  being  offered for sale 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.  Mr.  Camp  disclaims  beneficial  ownership  of all such
    ordinary   shares.   Excludes   448,029  shares  purchased  in  the  private
    placement  by  Vulcan  Ventures,  which  beneficially owns 33.95% of Go2Net.
    William  D.  Savoy,  Vice-President  of  Vulcan Ventures, is a member of the
    board of directors of Go2Net.

(2) Represents  1,196,342  ordinary  shares  owned  by Israel Growth Fund, L.P.,
    which  is  advised  by  Apax-Leumi  Partners,  its  investment  advisor. 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) Represents  648,772  ordinary  shares  owned  by  Gemini  Israel  Fund  L.P.
    ("GIF"),  166,280  ordinary  shares  owned by Gemini Israel II Parallel Fund
    L.P.  ("GIPF"),  5,922  ordinary  shares  owned  by  Yoseph  Sela  and 5,922
    ordinary  shares  owned  by  Dr. Ed Mlavsky, the President of Gemini Capital
    Fund  Management,  which  manages  GIF and GIPF. Mr. Sela, a director of the
    Company,   is   the   Executive   Vice  President  of  Gemini  Capital  Fund
    Management,  and,  as  such, may be deemed to beneficially own such ordinary
    shares.  Mr.  Sela  disclaims  beneficial  ownership of all of Dr. Mlavsky's
    ordinary  shares  and  of  all  of the ordinary shares owned by GIF and GIPF
    except to the extent of his proportional interests therein.

(4) Includes  687,280  ordinary  shares  owned  by  k.t.  Concord  Venture  Fund
    (Cayman),  L.P.  ("CVF"),  137,400  ordinary  shares  owned  by k.t. Concord
    Venture  Fund  (Israel), L.P. ("CVF Israel"), 5,620 ordinary shares owned by
    k.t.  Concord  Venture  Advisors  (Cayman), L.P. ("CVA"), and 1,100 ordinary
    shares   owned  by  k.t.  Concord  Venture  Advisors  (Israel),  L.P.  ("CVA
    Israel").  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.

(5) Certain  of  such  shares  are  subject to a right of repurchase in favor of
    Commtouch  Software,  Inc.  Does  not include 10,000 ordinary shares subject
    to  an  option  granted  to Mr. Collins under the 1996 CSI Stock Option Plan
    on  April  23,  1999, with an exercise price of $15.75 per share. The option
    will  vest  with  respect to one-fourth of the shares on April 23, 2000, and
    with respect to 1|M/36 of the remaining shares each month thereafter.

(6) Does  not include 50,000 ordinary shares subject to an option granted to Mr.
    Lev  under  an  Israeli Option Agreement on April 23, 1999, with an exercise
    price  of  $15.75 per share. The option will vest with respect to one-fourth
    of  the  shares  on  April  23,  2000,  and  with  respect  to 1|M/36 of the
    remaining shares each month thereafter.

(7) Certain  of  such  shares  are  subject to a right of repurchase in favor of
    Commtouch  Software,  Inc.  Does  not include 80,000 ordinary shares subject
    to  an  option granted to Mr. Mantel under the 1996 CSI Stock Option Plan on
    April  23,  1999,  with  an  exercise  price of $15.75 per share. The option
    will  vest  with  respect to one-fourth of the shares on April 23, 2000, and
    with respect to 1|M/36 of the remaining shares each month thereafter.

(8) Certain  of  such  shares  are  subject to a right of repurchase in favor of
    Commtouch  Software,  Inc. Does not include 5,000 ordinary shares subject to
    an  option  granted  to  Ms. Maxwell under the 1996 CSI Stock Option Plan on
    April  23,  1999,  with  an  exercise  price of $15.75 per share. The option
    will  vest  with  respect to one-fourth of the shares on April 23, 2000, and
    with respect to 1|M/36 of the remaining shares each month thereafter.

(9) Includes   455,131   ordinary  shares  issuable  upon  exercise  of  options
    exercisable within 60 days of December 31, 1999.
</FN>
</TABLE>

                                       19


<PAGE>

<TABLE>
                  SELECTED CONSOLIDATED FINANCIAL INFORMATION

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)      $   (2.54)
                                                         ========     =========     =========      =========       =========
Weighted average shares -- basic and diluted   ......       2,885        1,934         1,450           1,450           7,787
                                                         ========     =========     =========      =========       =========
</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 (deficiency)   ......      (650)        777       (1,018)         (815)       95,312
</TABLE>



                                       20


<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 "believes," "anticipates,"
"plans,"  "expects,"  "intends" 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


                                       21


<PAGE>

email  to their end users at no cost in a matter of minutes. Throughout 1999, we
transitioned  our  revenue  model  from  one  based  on advertising with minimum
commitment  fee  to  a  price per emailbox fee structure with 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, 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  Emarketing. 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 business partners 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 distribution
date  of  the  email  service  and  Microsoft  may  extend the initial term on a
quarterly or


                                       22


<PAGE>

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).


<TABLE>
Results of Operations

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 increase 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.


                                       23


<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  to  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.


                                       24


<PAGE>

Quarterly Results of Operations

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.



<TABLE>
<CAPTION>
                                                    Three Months Ended
                                       --------------------------------------------
                                        Mar. 31,   Jun. 30,   Sept. 30,   Dec. 31,
                                          1998       1998       1998        1998
                                       ---------- ---------- ----------- ----------
                                                      (in thousands)
<S>                                    <C>        <C>        <C>         <C>
Email service revenues    ............  $   32    $    59     $    130   $   168
Cost of email service revenues  ......      59         85          166       259
                                        ------    --------    --------   --------
Gross profit (loss)    ...............     (27)       (26)         (36)      (91)
                                        ------    --------    --------   --------
Operating expenses:
 Research and development,
   net  ..............................     266        305          308       270
 Sales and marketing   ...............     459        506          509       527
 General and administrative  .........     138        137          151       178
 Amortization of prepaid
   marketing expenses  ...............     --         --           --        --
 Amortization of stock-based
   employee deferred
   compensation  .....................       2          8           18        63
                                        ------    --------    --------   --------
   Total operating expenses  .........     865        956          986     1,038
                                        ------    --------    --------   --------
Operating loss   .....................    (892)      (982)      (1,022)   (1,129)
Interest and other income
 (expenses), net    ..................     (27)       (59)         (28)     (212)
                                        ------    --------    --------   --------
Net loss   ...........................  $ (919)   $(1,041)    $ (1,050)  $(1,341)
                                        ======    ========    ========   ========
</TABLE>


<TABLE>
<CAPTION>
                                                    Three Months Ended
                                       -----------------------------------------------
                                        Mar. 31,   Jun. 30,   Sept. 30,    Dec. 31,
                                          1999       1999       1999         1999
                                       ---------- ---------- ----------- -------------
                                                      (in thousands)
<S>                                    <C>        <C>        <C>         <C>
Email service revenues    ............ $   346    $   552     $  1,117     $  2,236
Cost of email service revenues  ......     435        605        1,043        1,560
                                       --------   --------    --------     --------
Gross profit (loss)    ...............     (89)       (53)          74          676
                                       --------   --------    --------     --------
Operating expenses:
 Research and development,
   net  ..............................     340        510          857        1,235
 Sales and marketing   ...............     608      1,363        2,368        3,383
 General and administrative  .........     617        683        1,345        1,683
 Amortization of prepaid
   marketing expenses  ...............     --         --         1,464        1,799
 Amortization of stock-based
   employee deferred
   compensation  .....................     386      1,013        1,096          941
                                       --------   --------    --------     --------
   Total operating expenses  .........   1,951      3,569        7,130        9,041
                                       --------   --------    --------     --------
Operating loss   .....................  (2,040)    (3,622)      (7,056)      (8,365)
Interest and other income
 (expenses), net    ..................    (271)         6          577          920
                                       --------   --------    --------     --------
Net loss   ........................... $(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:

     *  continued growth of the Internet and of email usage;

     *  demand for Web-based email services;

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

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

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

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

                                       25


<PAGE>

     *  technical difficulties or system outages;

     *  foreign exchange rate fluctuations;

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

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

     *  the pricing policies of our competitors;

     *  failure to increase our sales; and

     *  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.


                                       26


<PAGE>

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.

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  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.


                                       27


<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
Jupiter  Communications,  96%  of  all people going onto the Internet each month
check  their  email. 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
email  boxes  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  email  boxes in the United States and over 305 million email
boxes 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:

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

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

     * 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:

     *  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].


                                       28


<PAGE>

     *  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.

     *  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.


                                       29


<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.


                                       30


<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:

     *  price-per-emailbox; subject to a minimum annual commitment

                                       31


<PAGE>

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

     *  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.

<TABLE>
Classic Service

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>

                                       32


<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>

                                       33


<PAGE>

<TABLE>
Premium Services

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 Fowarding                   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.


<TABLE>
Planned Services

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>


                                       34


<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.


                                       35


<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.

                                       36


<PAGE>

                            Hardware Infrastructure



                  [GRAPHIC OF HARDWARE INFRASTRUCTURE 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.

     *  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.

     *  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.

     *  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.

     *  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.


                                       37


<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:

     *  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;

     *  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

     *  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.


                                       38


<PAGE>

                                ADML Flow chart


                      [GRAPHIC OF ADML FLOW CHART OMITTED]




Advanced Proprietary Technologies

We have developed the following proprietary technologies:

     *  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.

     *  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.

     *  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.

     *  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.


                                       39


<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:

     * highly customizable and flexible;

     * rapidly deployable;

     * available in 18 languages;

     * designed to integrate numerous messaging applications; and

     * 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  (Canada,  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


                                       40


<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.


                                       41


<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.


                                       42


<PAGE>

                                  MANAGEMENT

<TABLE>

Executive Officers and Directors

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   ...............  39     President, Chief Technology Officer and Director
Isabel Maxwell   .........  49     President, Commtouch Software, Inc.
James Collins    .........  41     Chief Financial Officer
Allan Barkat(1)  .........  40     Chairman of the Board of Directors
Yiftah Atir   ............  50     Director
Yair Safrai(2)   .........  41     Director
Yoseph Sela(1)(2)   ......  46     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>


<TABLE>
Other Management Employees

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
Tom McCullough  ............  40     General Manager of bMessaging, a division of
                                     Commtouch Software, Inc.
Ronni Zahavi    ............  34     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 President since
December  1999  and  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.


                                       43


<PAGE>

James  Collins  has  served  as  the  Chief Financial Officer of Commtouch since
March  1999  and  as the Secretary of Commtouch from April 1999 to January 2000.
From  October  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.

Yiftah  Atir  has  served  as  a  Director of Commtouch since January 1996. From
November  1994  to  the  present,  Mr.  Atir  has served as Managing Director of
Evergreen  Venture  Capital, a technology focused venture capital fund. Mr. Atir
received  a  B.A.  from Haifa University and an M.B.A. from Tel Aviv University.
Mr. Atir resigned in February 2000.

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, the
Israel Institute of Technology.

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 entered into an
agreement  with  us  in  which they purchased shares. Under that agreement, they
have the right to name one director to


                                       44


<PAGE>

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.

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.

Tom  McCullough  has  served  as  General  Manager  of bMessaging, a division of
Commtouch  Software,  Inc.,  since  June  1999  and  as  a  Vice President since
September  1997  after  consulting  to various companies, including the San Jose
Sharks,  on  their  e-Commerce  initiatives  from August 1998 to June 1999. From
April  1997  to  July  1998  Mr. McCullough served as an International Marketing
Manager  with  NEC  Systems Laboratory, as Vice President of Sales and Marketing
with  Network  Information  Technology from October 1996 to March 1997, and as a
Business  Development Manager with SunSoft (a Division of Sun Microsystems) from
February 1996 to October 1996. Mr. McCullough received
his  B.A.  in  Economics from the University of Southern California and his M.S.
in  Technology Management from Pepperdine University. Mr. McCullough resigned on
March 1, 2000.

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.


                                       45


<PAGE>

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  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 alternative 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 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:

     * an employment relationship;

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

     * control; and

     * 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:

                                       46


<PAGE>

     *  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

     *  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.

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  or  its  affiliates, on the other hand, or conflicts related to
existing  or  new  contractual  relationships between us, on the one hand, or by
Go2Net,  Vulcan  or  its  affiliates, on the other hand. Transactions between us
and our officers and directors, and


                                       47


<PAGE>

extraordinary  transactions between us and our principal shareholders a majority
of  the  board  of  directors,  including  a  majority  of  the  independent and
disinterested   outside   directors,  and  in  some  circumstances,  shareholder
approval 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 the Commtouch's
shareholders   at   a  general  meeting.  Directors  currently  do  not  receive
compensation  for  their  services  as  directors  but  are reimbursed for their
expenses for each Board of Directors meeting attended.

The  aggregate  direct  remuneration  paid  by  Commtouch  to  all directors and
executive  officers  (19  persons)  in 1999 was approximately $1,750,000. During
the  same  period  Commtouch accrued or set aside approximately $132,000 for the
same  group  to  provide pension, retirement or similar benefits. As of December
31  1999,  directors and executive officers of Commtouch (19 persons) held stock
options to purchase an aggregate of 773,420 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|M/36 of
the  remaining  shares vest 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


                                       48


<PAGE>

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.

As of December 31, 1999,  2,123,150 stock options had been granted under Israeli
Option  Agreements,  the 1996 CSI Stock Option Plan and the 1999  Israeli  Share
Option Plan. Of that number  1,383,110  had not been  exercised and had exercise
prices  ranging from $0.55 to $48.56 per share and a weighted  average per share
exercise price of $9.62, and were held by 197 persons.

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:

     *  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

     *  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.


                                       49


<PAGE>

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:

     *  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

     *  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.

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


                                       50


<PAGE>

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 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 external 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


                                       51


<PAGE>

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.

In  addition,  a private placement of securities that will increase the relative
holdings  of  a  shareholder  that  holds  five percent or more of the company's
outstanding  share  capital,  assuming  the  exercise  of  all of the securities
convertible  into  shares  held by that person, or that will cause any person to
become,  as  a result of the issuance, a holder of more that five percent of the
company's  outstanding  capital, requires approval by the Board of Directors and
the shareholders of the company.

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:

     * any amendment to the Articles of Association;

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

     * a merger; or

     * 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   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.

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


                                       52


<PAGE>

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  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.


                                       53


<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
$13,333,328 in ordinary  shares to Go2Net and  $6,666,672 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 being  offered under this  prospectus  and the shares
available to Go2Net upon exercise of the warrant which are also being offered by
this prospectus. 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  $2,250,000.  The  Evergreen  Investors  subsequently  transferred
their shares to HarbourVest Evergreen L.P.


                                       54


<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  $3,000,000;  (ii) 16,249 Series C Convertible
Preferred Shares to IGF for a total investment of approximately $1,173,000;  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%, with payments of interest only due on
December  31  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.

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%, with payments of interest only due on December 31
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.

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% with payments of interest only due on
December  31  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.

Robert  "Rip"  Gerber  is the Vice President of Marketing 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% with payments of interest
only  due  on  December  31 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.

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  provided  Commtouch  with  a
full-recourse  promissory note dated December 3, 1999 in the original  principal
amount  $150,000.  The promissory  note bears interest at 4.83% with payments of
interest  only due on  December  31 of each  year and with the  balance  due and
payable on the fourth anniversary of


                                       55


<PAGE>

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.


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.  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 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 ecommerce), 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 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.


                                       56


<PAGE>

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.


                         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  December  31, 1999, our authorized share capital consisted of 40,000,000
ordinary  shares,  NIS  0.05  par  value.  As  of  December 31, 1999, there were
16,068,050  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


                                       57


<PAGE>

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  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:

     *  amending the Articles of Association;

     *  amending the Memorandum of Association;

     *  changing our name;

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

     *  merger or consolidation;

     *  voluntary winding up; and

     *  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


                                       58


<PAGE>

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:

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

     *  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's U.S. subsidiary 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.  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.


                                       59


<PAGE>

Description of Other Warrants

Commtouch's   U.S.   subsidiary,   Commtouch   Software,   Inc.,  and  Microsoft
Corporation  entered  into  an  Email Services Agreement dated October 26, 1999.
Under  this  agreement,  Commtouch  Software,  Inc.  will  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  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  exercise  price  of  $20.0  million.  On December 29, 1999, Microsoft
exercised the warrant and now holds 707,965 ordinary shares.

As of December 31, 1999,  Commtouch had  outstanding a warrant to purchase 4,860
ordinary  shares  issued to a consultant;  this warrant was not  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  the  Selling  Securityholders,  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  rights  to  Go2Net,  Vulcan  and Microsoft
pursuant  to  which  their holdings in the Company were registered on January 7,
2000.


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


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<PAGE>

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.

                                       61


<PAGE>

                        SHARES ELIGIBLE FOR FUTURE SALE

As  of  December  31, 1999, Commtouch had outstanding 16,068,050 ordinary shares
(assuming  the  issuances  of  868,706  shares upon the net exercise of Go2Net's
in-the-money  warrant).  Certain  of  those  shares  are subject to restrictions
discussed below.


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  160,680
        shares, assuming net exercise of the Go2Net warrant) 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.  Currently,  ________
of the restricted shares may be resold under Rule 144(k).


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. 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,  670,180 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 December  31,  1999,
approximately 279,584 shares are subject to the restriction.

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


Registration Rights

The  holders  of  ________ ordinary shares are entitled to register those shares
under  registration rights agreements with Commtouch. The registration statement
of  which  this  prospectus  is  a  part  was  filed under rights granted to the
Selling  Shareholders. Pursuant to the registration rights of Go2Net, Vulcan and
Microsoft  the  Company filed a registration statement which became effective on
January 7, 2000.


Shares Under Employee Benefit Plans

As  of  December 31, 1999, 5,000,000 shares were reserved for issuance under our
stock  option  plans  and  agreements,  of  which  options to purchase 1,383,110
shares  were  then  outstanding.  Currently, approximately 841,771 option shares
are vested and eligible for exercise and resale by the optionees.

On  January  20,  2000,  we  filed  a  Form S-8 registration statement under the
Securities  Act  to  register  shares issued in connection with option exercises
and  shares reserved for issuance under all stock plans and agreements. Ordinary
shares  issued upon exercise of options after the effective date of the Form S-8
will  be  available  for  sale  in the public market, subject to Rule 144 volume
limitations  applicable to affiliates and to shares held by optionees subject to
lock-up agreements.


                                       62


<PAGE>

The following table illustrates the above discussion:

                           Freely Tradeable Shares:
- ------------------------------------------------------------------------------
   3,450,000     shares issued by the Company in initial public offering
   1,344,086     shares registered on behalf of Go2Net and Vulcan 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
   1,331,000     shares being registered by the Selling Shareholders in this
                 offering
   5,400,000     shares registered on Form S-8(2)


                  Shares Currently Subject to Restriction:
- -----------------------------------------------------------------------------
    279,584     restricted shares issued to employees subject to Company's
                repurchase option
    707,965     shares registered on behalf of Microsoft (not freely
                tradeable until June 30, 2000)(3)
                shares held by Selling Shareholders not being registered in
                this offering and subject to lockup agreements with
                underwriters and registration rights agreements


               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").


- --------
(1) Shares are issuable at the time of exercise and are not yet outstanding.

(2) Subject  to  resale after options covering these shares are issued, vest and
    are  exercised.  Of  2,192,190  options  issued,  841,771 option shares were
    vested  as  of  December  31,  1999  and  740,040  of those options had been
    exercised.

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


                                       63


<PAGE>

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.


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


                                       64


<PAGE>

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  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


                                       65


<PAGE>

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 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.


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                   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 any
future income of Commtouch that would be fully tax exempt.


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  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").


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<PAGE>

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 deductions of
12.5%  per  annum  of the purchase price of a patent or of know-how, an election
under   certain  conditions  to  file  a  consolidated  return  and  accelerated
depreciation rates on equipment and buildings.

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  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
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 2000, we filed an extension for our second plan, expected
to  be  finalized  in 2000. In January 2000, we filed an application for a third
plan.

If  dividends are distributed out of tax-exempt profit from Commtouch's Approved
Enterprises,  Commtouch will be liable for corporate tax at the rate which would
have  been  applied if it had not chosen the alternative tax benefits (currently
25%  for an Approved Enterprise and dividend withholding tax of 15%--see below).
Therefore,  income  derived  from  Commtouch's  Approved  Enterprises  would  be
subject  to  tax if distributed to shareholders as a dividend. See Note 8 to the
Consolidated Financial Statements.

The  dividend  recipient  will  be  taxed  at  the  reduced  rate  applicable to
dividends  from  Approved  Enterprises  (currently  15%),  if  the  dividend  is
distributed  during  the  tax  exemption  period  or  within  a specified period
thereafter,  or  for  an  unlimited  period in the case of a "Foreign Investors'
Company"  --a  company  more than 25% foreign owned with an Approved Enterprise.
This  tax  must  be  withheld by the company at source regardless of whether the
dividend  is  converted  into  foreign currency. See "--Capital Gains and Income
Taxes Applicable to Non-Israeli Shareholders." Subject to certain


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<PAGE>

provisions  concerning  income eligible for exemption if retained, all dividends
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.

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 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  (including depreciation on capital expenditures but
excluding depreciable capital expenditures) in


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<PAGE>

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  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.

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.


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<PAGE>

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.


                             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


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<PAGE>

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.


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.


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<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  ..........................................


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  99  filed  public  offerings  of  equity  securities,  of which 79 have been
completed.  Since  that  time,  it  also  has  acted as a syndicate member in an
additional  54 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  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
                              -------------   ---------------
         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.


                                       73


<PAGE>

We  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.

We  and each of our directors, executive officers, and certain 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. 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 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.

Pursuant  to  the  terms  under  which  the ordinary shares and the warrant 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 the 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.

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


                                       74


<PAGE>

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

We  have  applied  to  the Israel Securities Authority for an exemption from the
obligation  to  publish  this  prospectus in the manner required pursuant to the
prevailing  laws  of  the  State  of  Israel,  and  from  the obligation to file
periodic  reports  with  the  Israel Securities Authority. 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.



                      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


                                       75


<PAGE>

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:

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

     *  the judgment is no longer appealable,

     *  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

     *  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.


                                       76


<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 (Deficiency)   ......    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>

<TABLE>
                            COMMTOUCH SOFTWARE LTD.

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

<CAPTION>
                                                                               December 31,
                                                                       -----------------------------
                                                                          1998            1999
                                                                       ------------   --------------
<S>                                                                    <C>            <C>
                                                  Assets
Current Assets:
   Cash and cash equivalents    ....................................    $     834       $  65,996
   Marketable securities  ..........................................          --           18,050
   Trade receivables   .............................................          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 (Deficiency)
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 (Deficiency)
   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
   Stock-based employee 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 (deficiency)  .....................         (815)         95,312
                                                                        ---------       ---------
                                                                        $   2,366       $ 100,336
                                                                        =========       =========
<FN>

      The accompanying notes are an integral part of these consolidated financial statements.

</FN>
</TABLE>

                                                 F-3


<PAGE>

<TABLE>
                            COMMTOUCH SOFTWARE LTD.

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


<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 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)
                                                             =========     =========      ==========
Basic and diluted net loss per share    ..................   $  (2.40)     $  (3.00)      $    (2.54)
                                                             =========     =========      ==========
Weighted average number of shares used in computing
 basic and diluted net loss per share   ..................      1,450         1,450            7,787
                                                             =========     =========      ==========
<FN>

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


                                                 F-4


<PAGE>

<TABLE>
                            COMMTOUCH SOFTWARE LTD.

           STATEMENT OF CHANGES IN SHAREHOLDERS' EQUITY (DEFICIENCY)
                (In thousands, except share and per share data)

<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 related to options
  issued to employees  ...........................        --        --             --       --           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 related to options
  issued to employees  ...........................        --        --             --       --         8,797
 Ordinary shares issued for notes  ...............        --        --         670,180        8        1,039
 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 note 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
                                                    =========    =======    ===========  ======   ==========

</TABLE>

<TABLE>
<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 related to options
  issued to employees  ...........................        (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 related to options
  issued to employees  ...........................      (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 note receivable   ..................         --              54          --              --            54
 Other comprehensive income--unrealized
  holding gains on marketable securities    ......         --             --            63             --            63
 Net loss  .......................................         --             --           --          (19,851)     (19,851)
 Total comprehensive loss ........................         --             --           --              --       (19,798)
                                                     ---------      ---------         -----      ----------   ----------
Balance as of December 31, 1999    ...............   $  (5,779)     $  (1,060)        $ 63       $ (31,528)   $  95,312
                                                     =========      =========         =====      ==========   ==========

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

                                      F-5


<PAGE>

<TABLE>
                            COMMTOUCH SOFTWARE LTD.

                     CONSOLIDATED STATEMENTS OF CASH FLOWS
                (In thousands, except share and per share data)


<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 other and
       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 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
                                                                    =========       =========        ==========
<FN>

     The accompanying notes are an integral part of these consolidated financial statements.
</FN>
</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 in early
2000.

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 (principally cash and cash equivalents, marketable securities,
long-term  lease  deposits  and  various  liabilities)  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 (loss).

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 accounts receivable 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  accounts 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 Market Financial Instruments:

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


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%.

Profits  distributed  from  income  that was tax exempt whilst undistributed are
subject  to  Company  tax  15%-20% of the grossed-up equivalent of the dividend.
Withholding tax of 15% will apply to the dividends.

The  entitlement  to  the  above  benefits  is  conditional  upon  the Company's
fulfilling   the   conditions  stipulated  by  the  Law,  regulations  published
thereunder  and  the  instruments  of  approval  for the specific investments in
"Approved   Enterprises".   In  the  event  of  failure  to  comply  with  these
conditions,  the  benefits  may  be  canceled and the Company may be required to
refund the amount of the benefits, in whole or in part, including interest.

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" as defined by this law 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 trade 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 common
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 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 $21,000, $135,000 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 exercised 670,180 options granted
to  them  by  Commtouch.  In  consideration  for  the  ordinary shares purchased
pursuant  to  the  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  restricted  shares,  and  are  subject to a right of repurchase in favor of
Commtouch  according  to the original vesting schedule of the options exercised,
generally four years.


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.

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. 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.

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

<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       10.37
 Exercised   ..............................        --          --        (740,040)          --         --         1.47
 Canceled    ..............................    (64,300)     (9,420)       (76,040)         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>

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

<CAPTION>
                                Options              Weighted
                           Outstanding as of         Average              Weighted
                             December 31,           Remaining         Average Exercise
    Exercise Price               1999            Contractual Life          Price
- ------------------------   -------------------   ------------------   ------------------
<S>                        <C>                   <C>                  <C>
          $ 0.55-$ 2.50           660,760              8.23                 $ 1.52
          $11.00-$15.75           502,500              9.54                 $14.24
          $16.00-$48.56           219,850              9.82                 $23.86
                                ----------             ----                 -------
          $ 0.55-$48.56         1,383,110              8.98                 $ 9.62
                                ==========             ====                 =======
</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.

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

<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 joins the Board of Directors as a nonemployee director on
or  after  the  effective  date  of  this  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 a related party. 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>

                               x,xxx,xxx Shares


                            COMMTOUCH SOFTWARE LTD.



                                Ordinary Shares




                           [COMMTOUCH LOGO GOES HERE]



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



Until  __________,   2000,  all  dealers  that  effect   transactions  in  these
securities,  whether or not  participating in this offering,  may be required to
deliver a prospectus.  This is in addition to the dealers' obligation to deliver
a  prospectus  when  acting as  underwriters  and with  respect to their  unsold
allotments or subscriptions.

                           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  .................................   $
                                                                   --------
         NASD filing Fee    ....................................   $
         Nasdaq National Market filing fee    ..................    17,500
         Blue Sky fees and expenses  ...........................    10,000
         Printing and engraving expenses   .....................    50,000
         Israeli stamp duty ....................................
         Legal fees and expenses  ..............................    50,000
         Accounting fees and expenses   ........................    50,000
         Transfer agent and registrar fees and expenses   ......    10,000
         Miscellaneous expenses   ..............................   --------
Total  .........................................................   $
                                                                   ========

Item 14. Indemnification of Directors and Officers.

Reference  is made to Section ____________ 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.

The  Articles  of  Association  provide  that  the Registrant will indemnify any
Office  Holder  of  the  Registrant as defined in the Companies Ordinance out of
the  assets of the Registrant against all liabilities incurred bona fide by such
Office  Holder  in the line of his duties for the Registrant or related thereto.
The  Registration  Rights  Agreement  which  we  entered  into  with the Selling
Securityholders  (filed  as  an exhibit to this registration statement) contains
certain  provisions  relating  to  the  indemnification  of  our  directors  and
officers.

In  addition, the Registrant maintains insurance for its directors and officers.
Israeli  law  permits  a  company  to  insure  an  Office  Holder  in respect of
liabilities  incurred  by  him  as a result of the breach of his 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 monetary
liability  in  connection  with his activities as an Office Holder. The Articles
of  Association  of  the Registrant allow the Registrant to insure and indemnify
Office  Holders  to  the  fullest  extent  permitted  by  law. 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 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.


                                      II-1


<PAGE>

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  Securityholders,  the  Company  has  agreed  to  indemnify  the Selling
Securityholders  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 Securityholder, as to which each Selling Securityholder 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.

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


- ------------
(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>

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.

(a) Exhibits

<CAPTION>
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 _____, 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)
 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)
</TABLE>

                                      II-3


<PAGE>


<TABLE>
<CAPTION>
Exhibit
Number                                   Description of Document
- --------   --------------------------------------------------------------------------------------
<S>        <C>
 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.
</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
297(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 __, 2000.

                                          COMMTOUCH SOFTWARE LTD.


                                          By:       /s/ GIDEON MANTEL
                                              ----------------------------------
                                                        Gideon Mantel
                                                   Chief Executive Officer

<TABLE>
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.

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

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

       /s/ DEVYANI PATEL        Controller                               March __, 2000
- ---------------------------
          Devyani Patel

           /s/ AMIR LEV         Director                                 March __, 2000
- ---------------------------
             Amir Lev

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

         /s/ YAIR SAFRAI        Director                                 March __, 2000
- ---------------------------
            Yair Safrai

         /s/ YOSEPH SELA        Director                                 March __, 2000
- ---------------------------
           Yoseph Sela

      /s/ NAHUM SHARFMAN        Director                                 March __, 2000
- ---------------------------
         Nahum Sharfman

        /s/ THOMAS CAMP         Director                                 March __, 2000
- ---------------------------
           Thomas Camp

       /s/ RICHARD SORKIN       Director                                 March __, 2000
- ---------------------------
         Richard Sorkin

     /s/ JAMES E. COLLINS       Attorney-in-fact and                     March __, 2000
- ---------------------------     Authorized U.S. Representative
        James E. Collins
</TABLE>

                                      II-5


<PAGE>

<TABLE>
                            COMMTOUCH SOFTWARE LTD.


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


<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  ..................        --              460             --            460
                                     ==              ====           ====           ====
</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,  present  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


                                                                   EXHIBIT 4.2.2

                                 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 29 day of February, 2000 by
and among Commtouch Software Ltd., an Israeli company (the "Company") having its
principal executive offices at 6 Hazoran Street, Poleg Industrial Park, P.O. Box
8511, Netanya 42504,  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
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 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 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 shares remaining to be sold.

                  2. Each Holder shall notify the Company 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  Allan  Barkat  (the  "Attorney-in-Fact"),  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,
                  additional 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  Attorney-in-Fact,  including  the
                  making of all  representation  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  Attorney-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;


<PAGE>

                                    (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
                  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 U.S. 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  Attorney-in-Fact  in  their
                  discretion, including, if necessary, the endorsement (if blank
                  or otherwise) on behalf of the  undersigned of the certificate
                  of  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) The Custodian,  the Company and the  underwriters
         and all other  persons  dealing with the  Attorney-in-Fact  as such may
         rely  upon any  writing  believed  in good  faith to be  signed  by the
         Attorney-in-Fact.

                           (c)  The  Attorney-in-Fact   shall  not  receive  any
         compensation for his 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 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


<PAGE>

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.


<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: _______________________

SHAREHOLDERS:

         By: __________________________
         Name: ________________________
         Company: _____________________
         Title: _______________________

         By: __________________________
         Name: ________________________
         Company: _____________________
         Title: _______________________

         By: __________________________
         Name: ________________________
         Company: _____________________
         Title: _______________________

         By: __________________________
         Name: ________________________
         Company: _____________________
         Title: _______________________

         By: __________________________
         Name: ________________________
         Company: _____________________
         Title: _______________________


<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

                  1.       Isabel Maxwell

                  2.       Nahum Sharfman

                  3.       James Collins




                                                                     EXHIBIT 5.1

                                   C/255/79
                             Tel-Aviv, March 6, 2000

CommTouch Software Ltd.
6 Hazoran Street
Poleg Industrial Park
Netanya 42504
Israel


Ladies and Gentlemen:

         We refer to the  registration  statement on Form F-1,  Registration No.
333-______ (the "Registration Statement"), initially filed by CommTouch Software
Ltd.  (the  "Company")  on  March  6,  2000  with the  Securities  and  Exchange
Commission  under the  Securities  Act of 1933,  as  amended.  The  Registration
Statement  relates  to (i)  the  sale  by the  Company  to the  Underwriters  as
described in the  Registration  Statement of up to  1,669,000  Ordinary  Shares,
nominal value NIS 0.05 per share, of the Company (the "Firm Shares"), for resale
to the public,  and (ii) the sale by the selling  shareholders  described in the
Registration  Statement  of up to an aggregate  of  1,331,000  Ordinary  Shares,
nominal  value NIS 0.05 per share,  of the  Company  (the  "Selling  Shareholder
Shares").  The  Underwriters  may, as described in the  Registration  Statement,
purchase up to an additional 450,000 Ordinary Shares, nominal value NIS 0.05 per
share, of the Company (the "Option  Shares" and,  together with the Firm Shares,
the  "Primary  Shares")  at the  public  offering  price  less the  underwriting
discount.

                                       2

<PAGE>

         As special  Israeli  counsel  to the  Company  in  connection  with the
offering of the Primary Shares and the Selling  Shareholder  Shares  pursuant to
the  Registration  Statement,  we  have  examined  such  corporate  records  and
documents  and  such  questions  of  law  as we  have  considered  necessary  or
appropriate for the purpose of this opinion.

         Upon the basis of such examination, we are of the opinion that:

                  1. The Primary Shares to be issued and sold by the Company, as
contemplated by the Prospectus included in the Registration Statement,  are duly
and validly  authorized and, when issued and sold in the manner  contemplated by
the Underwriting Agreement filed as an exhibit to the Registration Statement and
upon receipt by the Company of payment  therefor as provided in the Underwriting
Agreement, will be legally and validly issued, fully paid and non-assessable.

                  2. The  Selling  Shareholder  Shares are  legally  and validly
issued, fully paid and non-assessable.

         We  consent  to  the  filing  of  this  opinion  as an  exhibit  to the
Registration  Statement  and to the  reference  to this firm  under the  caption
"Legal Matters" in the Prospectus  contained in the  Registration  Statement and
elsewhere in the Registration Statement and Prospectus.

                                Very truly yours,

                                Naschitz, Brandes & Co.



                                                                    EXHIBIT 23.1

                         CONSENT OF INDEPENDENT AUDITORS

   We consent to the reference to our firm under the caption  "Experts",  and to
use of our  reports  dated  January  31,1999  with  respect to the  consolidated
financial statements and schedule in the Registration  Statement on Form F-1 and
the related  Prospectus  of  CommTouch  Software  Ltd. for the  registration  of
3,000,000 of its ordinary shares.

Tel-Aviv, Israel
March 6 ,1999

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



                                                                   EXHIBIT 23.3



               CONSENT OF MCCUTCHEN, DOYLE, BROWN & ENERSEN, LLP



We  consent  to  the references to the name of our firm under the caption "Legal
Matters"  in  the  Registration  Statement  (Form F-1) and related Prospectus of
CommTouch  Software  Ltd.  for  the registration of Ordinary Shares on behalf of
the Company and on behalf of Selling Shareholders.


                                         MCCUTCHEN, DOYLE, BROWN & ENERSEN, LLP


Palo Alto, California
March 6, 2000

                                       1



                                                                   EXHIBIT 24.1

<TABLE>

                               POWER OF ATTORNEY


KNOW  ALL  PERSONS  BY  THESE PRESENTS, that each person whose signature appears
below  hereby  constitutes  and  appoints  James  E. Collins, with full power of
substitution  and  resubstitution,  as  his true and lawful attorney-in-fact and
agent  for  him and on his behalf and in his name, place and stead as a director
or  officer  or  both  of Commtouch Software Ltd. (the "Registrant") to sign the
registration  statement  on  Form F-1 relating to an offering of ordinary shares
by  the Registrant and/or selling securityholders of the Registrant, and any and
all   amendments  (including  post-effective  amendments)  to  the  registration
statement  and  any  registration  statement for the same offering that is to be
effective  upon  filing pursuant to Rule 462(b) under the Securities Act of 1933
(and  any  amendments  thereto), and to file the same, with exhibits and any and
all  other  documents  filed  with  respect  thereto,  with  the  Securities and
Exchange  Commission  (or  any  other  governmental  or  regulatory  authority),
granting  unto  said attorney full power and authority to do and to perform each
and  every  act  and  thing  requisite and necessary to be done in and about the
premises  in  order  to effectuate the same as fully to all intents and purposes
as  he  himself  might  or  could do if personally present, hereby ratifying and
confirming  all that said attorney-in-fact and agent may lawfully do or cause to
be done by virtue hereof.

<CAPTION>
           Name                                Title                         Date
- -----------------------------   --------------------------------------   ---------------
<S>                             <C>                                      <C>
       /s/ GIDEON MANTEL        Chief Executive Officer and Director     March 6, 2000
- ---------------------------     (Principal Executive Officer)
          Gideon Mantel

     /s/ JAMES E. COLLINS       Chief Financial Officer                  March 6, 2000
- ---------------------------     (Principal Financial Officer)
        James E. Collins

       /s/ DEVYANI PATEL        Controller                               March 6, 2000
- ---------------------------
          Devyani Patel

      /s/ ALLAN C. BARKAT       Director                                 March 6, 2000
- ---------------------------
         Allan C. Barkat

        /s/ THOMAS CAMP         Director                                 March 6, 2000
- ---------------------------
           Thomas Camp

           /s/ AMIR LEV         Director                                 March 6, 2000
- ---------------------------
             Amir Lev

         /s/ YAIR SAFRAI        Director                                 March 6, 2000
- ---------------------------
            Yair Safrai

         /s/ YOSEPH SELA        Director                                 March 6, 2000
- ---------------------------
           Yoseph Sela

      /s/ NAHUM SHARFMAN        Director                                 March 6, 2000
- ---------------------------
         Nahum Sharfman

       /s/ RICHARD SORKIN       Director                                 March 6, 2000
- ---------------------------
         Richard Sorkin
</TABLE>





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