WORLDTALK COMMUNICATIONS CORP
PRE 14A, 1999-10-18
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                            SCHEDULE 14A INFORMATION

                    Proxy Statement Pursuant to Section 14(a)
                     of the Securities Exchange Act of 1934

Filed by the Registrant [x]

Filed by a Party other than the Registrant [ ]

Check the appropriate box:

[x] Preliminary Proxy Statement              [ ] Confidential, for Use of the
[ ] Definitive Proxy Statement                   Commission Only (as Permitted
[ ] Definitive Additional Materials              by Rule 14a-6(e)(2))
[ ] Soliciting Material Pursuant to
    Rule 14a-11(c) or Rule 14a-12

                      WORLDTALK COMMUNICATIONS CORPORATION
- --------------------------------------------------------------------------------
                (Name of Registrant as Specified In Its Charter)


- --------------------------------------------------------------------------------
    (Name of Person(s) Filing Proxy Statement, if other than the Registrant)


Payment of Filing Fee (Check the appropriate box):

[x]  No fee required.

[ ]  Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and 0-11.


     (1) Title of each class of securities to which transaction applies:

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


     (2) Aggregate number of securities to which transaction applies:

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


     (3) Per unit  price  or other  underlying  value  of  transaction  computed
         pursuant to  Exchange  Act Rule 0-11 (Set forth the amount on which the
         filing fee is calculated and state how it was determined):

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


     (4) Proposed maximum aggregate value of transaction:

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


     (5) Total fee paid:

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

[ ]  Fee paid previously with preliminary materials.

[ ]  Check box if any part of the fee is offset as provided by Exchange Act Rule
     0-11(a)(2)  and identify the filing for which the  offsetting  fee was paid
     previously.  Identify the previous filing by registration statement number,
     or the Form or Schedule and the date of its filing.


     (1)  Amount Previously Paid:

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     (2)  Form, Schedule or Registration Statement No.:

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


     (3)  Filing Party:

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     (4)  Date Filed:

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<PAGE>


                                [Worldtalk Logo]

                      WORLDTALK COMMUNICATIONS CORPORATION
                            5155 Old Ironsides Drive
                          Santa Clara, California 95054


                    NOTICE OF SPECIAL MEETING OF STOCKHOLDERS


To Our Stockholders:

         NOTICE IS  HEREBY  GIVEN  that a special  meeting  of  stockholders  of
Worldtalk  Communications   Corporation   ("Worldtalk")  will  be  held  at  our
headquarters  located at 5155 Old Ironsides  Drive,  Santa Clara,  California on
Wednesday,  November  17,  1999 at  9:00  a.m.  Pacific  Standard  Time  for the
following purposes:

         1.       To approve an amendment to Worldtalk's  1996 Equity  Incentive
                  Plan to:

                      o    increase the number of shares reserved under the plan
                           by 1,000,000 shares; and

                      o    to provide for an automatic increase in the number of
                           shares  reserved  under  the plan on July 1, 2000 and
                           each  anniversary  thereafter,  of  3% of  the  total
                           shares of Worldtalk outstanding as of the immediately
                           preceding  June 30,  unless the board of directors of
                           Worldtalk  determines prior to the increase to reduce
                           or eliminate the increase in any particular year.

         2.       To approve an increase in the number of  authorized  shares of
                  common stock from 25,000,000 to 50,000,000.

         The foregoing  items of business are more fully  described in the proxy
statement accompanying this notice.

         Only  stockholders of record at the close of business on  ____________,
1999 are  entitled  to notice of and to vote at the  meeting or any  adjournment
thereof. Whether or not you expect to attend the meeting, please complete, date,
sign and promptly  return the  accompanying  proxy in the enclosed  postage-paid
envelope so that your shares may be  represented  at the meeting.  If the record
holder of your  shares is a broker,  bank or other  nominee,  please  follow the
instructions for voting that are given to you by such person or entity.


                                       By Order of the Board of Directors


                                       James Heisch
                                       President and Chief Financial Officer

Santa Clara, California
November      , 1999


<PAGE>


                      WORLDTALK COMMUNICATIONS CORPORATION
                            5155 Old Ironsides Drive
                          Santa Clara, California 95054

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

                                 PROXY STATEMENT

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

                                 November __, 1999


         The accompanying proxy is solicited on behalf of the board of directors
of Worldtalk Communications Corporation, a Delaware corporation,  for use at our
special meeting of stockholders to be held at our  headquarters  located at 5155
Old Ironsides Drive, Santa Clara, California on Wednesday,  November 17, 1999 at
9:00 a.m. Pacific Standard Time. This proxy statement and the accompanying  form
of proxy were first mailed to stockholders on or about November 3, 1999.

Record Date; Quorum

         Only  holders of record of our common stock at the close of business on
the record date of ___________,  1999 will be entitled to vote at the meeting. A
majority of the shares  outstanding on the record date will  constitute a quorum
for the transaction of business.

Outstanding Shares

         At the close of business on the record date, we had  __________  shares
of  common  stock   outstanding   and  entitled  to  vote  which  were  held  by
approximately __________ stockholders, although we have been informed that there
are approximately __________ beneficial owners of our common stock.

Voting Rights; Required Vote

         Holders of our  common  stock are  entitled  to one vote for each share
held as of the record date. In the event that a broker, bank, custodian, nominee
or other record holder of our common stock indicates on a proxy that it does not
have  discretionary  authority to vote certain shares on a particular  matter (a
"broker  non-vote"),  then  those  shares  will not be  considered  present  and
entitled to vote with respect to that matter,  although  they will be counted in
determining whether or not a quorum is present at the meeting.

         Approval of proposal 1 requires the  affirmative  vote of a majority of
the shares  present in person or  represented  by proxy at the meeting and voted
for or against the proposal.  Abstentions  and broker  non-votes will not affect
the outcome of the vote with respect to proposal 1.

         Approval of proposal 2 requires the  affirmative  vote of a majority of
the shares of outstanding  common stock. With respect only to proposal 2, broker
non-votes will have the same effect as a vote against proposal 2.

Voting of Proxies

         The proxy  accompanying  this proxy statement is solicited on behalf of
our board of directors  for use at the meeting.  Stockholders  are  requested to
complete,  date and sign the  accompanying  proxy and promptly  return it in the
enclosed  envelope or otherwise  mail it to Worldtalk.  All  executed,  returned
proxies  that are not  revoked  will be voted in  accordance  with the  included
instructions.  However, signed proxies that are returned without instructions as
to how they should be voted on a  particular  proposal  at the  meeting  will be
counted as votes in favor of the proposal set forth in the  accompanying  notice
of meeting and this proxy statement. We are not aware of any other matters to be
brought before the meeting.  However,  as to any business that may properly come
before the meeting, we intend that proxies in the form enclosed will be voted in
accordance with the judgment of the persons holding such proxies.

         In the event that  sufficient  votes in favor of any proposal  properly
brought  before the meeting are not  received  by the date of the  meeting,  the
persons named as proxies may propose one or more  adjournments of the

                                       1

<PAGE>


meeting to permit further  solicitations of proxies.  Any such adjournment would
require the affirmative  vote of the majority of the outstanding  shares present
in person or represented by proxy at the meeting.

         We will  pay the  expenses  of  soliciting  proxies  to be voted at the
meeting.  Following  the  original  mailing of the proxies and other  soliciting
materials,  we and/or our agents may also  solicit  proxies by mail,  telephone,
telegraph or in person.  Following the original mailing of the proxies and other
soliciting  materials,  we will request that brokers,  custodians,  nominees and
other record  holders of our common stock forward  copies of the proxy and other
soliciting  materials  to persons for whom they hold shares of common  stock and
request  authority for the exercise of proxies.  In such cases, upon the request
of the record  holders,  we will  reimburse  such  holders for their  reasonable
expenses.

Revocability of Proxies

         Any  person  signing  a  proxy  in the  form  accompanying  this  proxy
statement  has the  power to revoke it prior to the  meeting  or at the  meeting
prior to the vote  pursuant  to the  proxy.  A proxy may be revoked by a writing
delivered to us stating that the proxy is revoked, by a subsequent proxy that is
signed by the person who signed the earlier  proxy and is present at the meeting
or by attendance at the meeting and voting in person. Please note, however, that
if a stockholder's  shares are held of record by a broker, bank or other nominee
and that stockholder  wishes to vote at the meeting,  the stockholder must bring
to the meeting a letter from the broker,  bank or other nominee  confirming that
stockholder's  beneficial  ownership of the shares and that such broker, bank or
other nominee is not voting such shares.


          PROPOSAL NO. 1 -- AMENDMENT TO OUR 1996 EQUITY INCENTIVE PLAN

         In July 1999, the board adopted,  subject to stockholder  approval,  an
amendment to our 1996 Equity  Incentive Plan to increase the number of shares of
common stock  reserved  for issuance  thereunder  by  1,000,000  shares,  and to
provide for an automatic  increase in the shares reserved under the plan on July
1, 2000 and each anniversary  thereafter,  of 3% of the total shares outstanding
as of  the  immediately  preceding  June  30,  unless  our  board  of  directors
determines  prior to the  increase to reduce or  eliminate  the  increase in any
particular year. We are asking our stockholders to approve such amendment.

         The purpose of this amendment is to secure sufficient additional shares
under the plan so that we are able to maintain a competitive equity compensation
program.  Our board believes that the increase in the number of shares  reserved
for issuance under this plan and the automatic annual increase is in Worldtalk's
best  interests  because of our  continuing  need to attract and retain  quality
employees  and thereby  remain  competitive  in our  industry.  Granting  equity
incentives  under the plan plays an important role in our efforts to attract and
retain employees of outstanding  ability.  Competition for skilled engineers and
other key employees in our industry is intense and the use of significant  stock
options  to  retain  and  motivate  such  personnel  is  pervasive  in the  high
technology  industries.  Our board believes that the  additional  reservation of
shares with  respect to which equity  incentives  may be granted will provide us
with adequate flexibility to ensure that we can continue to meet those goals and
facilitate the expansion of our employee base.

         Below is a  summary  of the  principal  provisions  of our 1996  Equity
Incentive Plan. This summary is not necessarily complete and is qualified in its
entirety by reference to the full text of the plan.


                      Summary of 1996 Equity Incentive Plan

Plan history

         In February 1996, the board adopted,  subject to stockholders approval,
our 1996 Equity Incentive Plan and reserved 1,000,000 shares of common stock for
issuance under the plan. The equity  incentive plan was amended by the board and
stockholders  in June  1997 and June  1998 to  increase  the  number  of  shares
available for grant to a total of 2,750,000  shares.  The purpose of the plan is
to provide  incentives to attract,  retain and motivate  eligible  persons whose
present and  potential  contributions  are  important to our success by offering
them an opportunity to participate in our future  performance  through awards of
stock options, restricted stock and stock bonuses.

         As of September 30, 1999, options to purchase an aggregate of 2,539,341
shares of common stock were  outstanding  under the plan,  with exercise  prices
ranging  from $2.25 to $4.25 per share,  and an  additional  45,280

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<PAGE>


shares  were  available  for grant,  prior to taking into  account the  proposed
increase.  As of September  30,  1999,  options to purchase a total of 4,005,509
shares have been  granted to all  employees  as a group,  including  all current
officers who are non-executive  officers, of which options to purchase 2,188,789
shares were canceled.  As of September 30, 1999, our current executive  officers
as a group, consisting of five persons, have been granted options under the plan
to purchase an aggregate of 888,000 shares.  Options were granted under the plan
to the named executive officers, as defined in "Executive  Compensation," in the
following  amounts:  Robert  Dickinson - 90,000 shares;  Bernard  Harguindeguy -
606,333 shares;  Joseph Longo - 165,171 shares;  and John Weald - 45,000 shares.
In addition,  the  following  executive  officers  received  more than 5% of the
options granted under the plan: James Heisch - 375,000 shares and Colin Crosby -
178,000 shares.

Shares

         The stock subject to issuance  under the plan consists of shares of our
authorized  but  unissued  common  stock.  The number of shares of common  stock
currently  reserved for  issuance  under the plan is  2,750,000  shares.  Shares
subject to options  granted  pursuant to the plan that expire or are  terminated
for any  reason  without  being  exercised,  shares  subject  to awards  granted
pursuant to the plan that are forfeited or are  repurchased  by Worldtalk at the
original issue price,  and shares subject to awards granted pursuant to the plan
that otherwise terminate without shares being issued will again become available
for grant and  issuance  pursuant  to new awards  under the plan.  The number of
shares reserved under the plan is subject to proportional  adjustment to reflect
stock splits,  stock  dividends and other  similar  events.  Proposal 1 seeks to
increase  the  number  of  shares of  common  stock  reserved  under the plan by
1,000,000  shares,  to a  total  of  3,750,000  shares,  and to  provide  for an
automatic  increase in the number of shares  reserved  under the plan on July 1,
2000 and on each anniversary  thereafter,  of 3% of the total shares outstanding
as of  the  immediately  preceding  June  30,  unless  our  board  of  directors
determines  prior to the  increase to reduce or  eliminate  the  increase in any
particular year.

Eligibility

         Employees,  officers, directors,  consultants,  independent contractors
and advisors of  Worldtalk  are  eligible to receive  awards under the plan.  No
person will be eligible to receive more than 500,000 shares in any calendar year
pursuant to awards granted under the plan.  Notwithstanding the foregoing, a new
employee is eligible  to receive up to a maximum of 750,000  shares  pursuant to
the plan in the calendar  year in which he or she  commences  employment.  As of
September  30,  1999,  approximately  80  persons  were in the class of  persons
eligible  to  participate  in the plan,  165,379  shares  had been  issued  upon
exercise of options and 2,539,341 shares were subject to outstanding options. As
of that date,  45,280  shares were available for future grant, not including the
proposed  amendment to the plan. If the proposed  amendment had been approved by
the  stockholders  as of such  date,  there  would  have been  1,045,280  shares
available for future  issuance  under the plan.  The closing price of our common
stock  on  the  Nasdaq   National   Market  was  $__________  per  share  as  of
____________,  1999, the last trading day before the record date for the special
stockholder's meeting.

Administration

         The plan is administered by the compensation committee,  the members of
which  are  appointed  by our board of  directors.  The  compensation  committee
currently  consists  of  David  J.  Cowan  and  Anthony  Sun,  both of whom  are
non-employee  directors, as defined in Rule 16b-3 promulgated under the Exchange
Act,  and  outside  directors,  as defined  pursuant  to  Section  162(m) of the
Internal Revenue Code.

         Subject to the terms of the plan, the compensation committee determines
the persons who are to receive awards, the number of shares subject to each such
award and the terms and conditions of such awards.  The  compensation  committee
also has the authority to construe and  interpret  any of the  provisions of the
plan or any awards granted under the plan.

Stock options

         The plan  permits the  granting of options that are intended to qualify
either  as  incentive  stock  options,  known as ISOs,  or  non-qualified  stock
options,  known as  NQSOs.  ISOs may be  granted  only to  employees,  including
officers and directors who are also employees, of Worldtalk. The option exercise
price for each ISO share must be no less than 100% of the fair market value,  as
defined  in the  plan,  of a share  of our  common  stock at the time the ISO is
granted.  The per share  exercise  price of an ISO granted to a 10%  stockholder
must be no less  than

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<PAGE>


110% of the fair market value of a share of our common stock at the time the ISO
is granted.  The option  exercise price for each NQSO share must be no less than
85% of the fair market value of a share of common stock at the time of grant. We
have not granted  options  under the plan at less than fair market  value and do
not intend to do so in the foreseeable future.

         The  exercise  price of options  granted  under the plan may be paid as
approved by the compensation committee at the time of grant:

         o        in cash (by check);

         o        by   cancellation   of   indebtedness   of  Worldtalk  to  the
                  participant;

         o        by  surrender  of  shares  of our  common  stock  owned by the
                  participant  for at least six months and having a fair  market
                  value on the date of surrender equal to the aggregate exercise
                  price of the option;

         o        by tender of a full recourse promissory note;

         o        by waiver of compensation due to or accrued by the participant
                  for services rendered;

         o        by a  same-day  sale  commitment  from the  participant  and a
                  National  Association  of  Securities  Dealers,   Inc.  (NASD)
                  broker;

         o        by a margin commitment from the participant and a NASD broker;
                  or

         o        by any combination of the foregoing.

Restricted stock awards

         The  compensation  committee may grant  participants  restricted  stock
awards to purchase stock either in addition to, or in tandem with,  other awards
under  the  plan,   under  such  terms,   conditions  and  restrictions  as  the
compensation committee may determine. The purchase price for such awards must be
no less than 85% of the fair market value of our common stock on the date of the
award,  or in the case of an award  granted to a 10%  stockholder,  the purchase
price must be 100% of fair market value, and can be paid for in any of the first
five forms of  consideration  listed  above,  as  approved  by the  compensation
committee at the time of grant. We have not granted any restricted  stock awards
under the plan to date, and we do not intend to do so in the foreseeable future.

Stock bonuses

         The compensation  committee may grant participants stock bonuses either
in addition to or in tandem with other awards under the plan,  under such terms,
conditions and restrictions as the compensation committee may determine. We have
not granted any stock  bonuses  under the plan to date,  and we do not intend to
grant  stock  bonuses  from shares now  reserved or now  proposed to be reserved
under the plan.

Mergers, consolidations, change of control

         In the event of a merger, consolidation,  dissolution or liquidation of
Worldtalk,  the sale of  substantially  all of its assets,  or any other similar
corporate  transaction,  the successor  corporation  may assume awards under the
plan, substitute equivalent awards in exchange for those granted under the plan,
or provide consideration  substantially similar to that which is provided to our
stockholders in such  transaction.  In the event that the successor  corporation
does not assume or substitute  awards,  such awards will expire upon the closing
of such  transaction  at the  time  and  upon  the  conditions  as the  board of
directors  determines.  In addition,  each outstanding  award shall  immediately
accelerate and awards  granted before October 18, 1996 shall become  exercisable
in full while awards  granted on or after  October 18, 1996 that are not totally
vested shall become  exercisable as to the number of shares that is equal to the
number of shares vested at the time of the closing of the corporate transaction,
plus the number of shares that would have vested had the award been held for the
year after the closing of that corporate transaction.

Amendment or termination of the plan

         The  board  may at any time  terminate  or amend  the  plan,  including
amending any form of award  agreement or instrument  to be executed  pursuant to
the plan. However,  the board may not amend the plan in any manner that

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<PAGE>


requires  stockholder  approval  pursuant to the  Internal  Revenue  Code or its
regulations, or pursuant to the Exchange Act or Rule 16b-3 promulgated under the
Exchange Act.

Term of the plan

         Unless terminated earlier as provided in the plan, the plan will expire
in February 2006, ten years from the date it was adopted by the board.

Federal income tax information

         The  following  is a  general  summary  as of the  date of  this  proxy
statement of the federal income tax consequences to the company and participants
under the plan. Federal tax laws may change and the federal, state and local tax
consequences  for  any  participant  will  depend  upon  his or  her  individual
circumstances. Each participant has been and is encouraged to seek the advice of
a qualified tax advisor  regarding the tax  consequences of participation in the
plan.

         Incentive  stock options.  A participant  will recognize no income upon
grant of an ISO and incur no tax on its  exercise,  unless  the  participant  is
subject to the alternative  minimum tax,  referred to as AMT. If the participant
holds shares acquired upon exercise of an ISO, or the ISO shares,  for more than
one year  after the date the option  was  exercised  and for more than two years
after the date the option was granted,  the  participant  generally will realize
capital gain or loss,  rather than ordinary income or loss, upon  disposition of
the ISO shares.  This gain or loss will be equal to the  difference  between the
amount realized upon such disposition and the amount paid for the ISO shares.

         If the  participant  disposes of ISO shares prior to the  expiration of
either required holding period, known as a disqualifying  disposition,  the gain
realized upon such  disposition,  up to the  difference  between the fair market
value of the ISO  shares  on the date of  exercise  (or,  if  less,  the  amount
realized  on a sale of such  shares)  and the  option  exercise  price,  will be
treated as ordinary income.  Any additional gain will be long-term or short-term
capital gain,  depending upon the amount of time the ISO shares were held by the
participant.

         Alternative  minimum tax. The difference  between the fair market value
of the  ISO  shares  on the  date  of  exercise  and the  exercise  price  is an
adjustment  to income for  purposes  of AMT.  The AMT,  imposed to the extent it
exceeds the  taxpayer's  regular  tax,  is 26% of the  portion of an  individual
taxpayer's alternative minimum taxable income that would otherwise be taxable as
ordinary  income,  and 28% in the case of alternative  minimum taxable income in
excess of $175,000. A maximum 20% AMT rate applies to the portion of alternative
minimum  taxable  income that would  otherwise  be taxable as net capital  gain.
Alternative  minimum  taxable income is determined by adjusting  regular taxable
income for certain  items,  increasing  that  income by certain  tax  preference
items,  including the difference between the fair market value of the ISO shares
on the date of exercise and the exercise price,  and reducing this amount by the
applicable  exemption  amount  ($45,000  in case of a joint  return,  subject to
reduction under certain  circumstances).  If a disqualifying  disposition of the
ISO shares occurs in the same calendar year as exercise of the ISO,  there is no
AMT adjustment with respect to those ISO shares. Also, upon a sale of ISO shares
that is not a disqualifying  disposition,  alternative minimum taxable income is
reduced  in the year of sale by the excess of the fair  market  value of the ISO
shares at exercise over the amount paid for the ISO shares.

         Non-qualified  stock  options.  A  participant  will not  recognize any
taxable  income at the time an NQSO is  granted.  However,  upon  exercise of an
NQSO, the participant  must include in income as compensation an amount equal to
the  difference  between  the fair  market  value of the  shares  on the date of
exercise and the  participant's  exercise  price.  The  included  amount must be
treated as ordinary  income by the participant and may be subject to withholding
by Worldtalk,  either by payment in cash or withholding out of the participant's
salary.   Upon  resale  of  the  shares  by  the  participant,   any  subsequent
appreciation  or  depreciation  in the value of the  shares  will be  treated as
capital gain or loss.

         Restricted  stock awards and stock bonuses.  Restricted stock and stock
bonuses will  generally  be subject to tax at the time of receipt,  unless there
are  restrictions  that enable the participant to defer tax. At the time the tax
is  incurred,  the tax  treatment  will be similar to that  discussed  above for
NQSOs.

         Maximum tax rates.  The maximum tax rate  applicable to ordinary income
is 39.6%.  Long-term  capital  gain will be taxed at a maximum of 20%.  For this
purpose,  in order to receive long-term capital gain treatment,  the

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<PAGE>


shares must be held for more than twelve months.  Capital gains may be offset by
capital losses and up to $3,000 of capital losses may be offset annually against
ordinary income.

         Tax  treatment  of  Worldtalk.  We  generally  will  be  entitled  to a
deduction in  connection  with the exercise of an NQSO by a  participant  or the
receipt of restricted stock or stock bonuses by a participant to the extent that
the  participant  recognizes  ordinary  income and we  withhold  tax. We will be
entitled to a deduction in connection with the disposition of ISO shares only to
the extent that the  participant  recognizes  ordinary income on a disqualifying
disposition of the ISO shares.

         ERISA. The plan is not subject to any of the provisions of the Employee
Retirement Income Security Act of 1974 and is not qualified under Section 401(a)
of the Internal Revenue Code.

         The board  recommends  a vote for the  proposed  amendment  to our 1996
Equity Incentive Plan.


                                NEW PLAN BENEFITS

         The amounts of future  option  grants  under our 1996 Equity  Incentive
Plan to our chief  executive  officer,  our other four most  highly  compensated
executive  officers who were  serving as executive  officers at the end of 1998,
all of our current executive  officers as a group, all current directors who are
not executive officers as a group and all employees,  including all officers who
are not executive officers,  as a group, are not determinable  because under the
terms of the equity incentive plan such grants are made in the discretion of the
compensation committee or its designees. Future option exercise prices under the
equity incentive plan are not determinable  because they are based upon the fair
market value of our common stock on the date of grant.

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<PAGE>


          PROPOSAL NO. 2 -- INCREASE IN THE NUMBER OF AUTHORIZED SHARES

         We are asking  stockholders  to approve  the  increase in the number of
authorized  shares of our  common  stock  from  25,000,000  to  50,000,000.  Our
articles  of  incorporation  currently  authorize  us to issue up to  25,000,000
shares of common stock.

         The  board  has no  immediate  plans to issue a  significant  number of
additional shares of common stock. However, a larger number of authorized shares
of common stock will provide us certainty and  flexibility to undertake  various
types  of  transactions,   including  stock  splits,  financings,  acquisitions,
increases in the shares reserved for issuance pursuant to stock incentive plans,
or other  corporate  transactions  not yet determined.  Therefore,  our board of
directors is proposing to increase the number of shares of common stock reserved
for future issuance to 50,000,000.

         Reasons for the increase

         In order for the board to be able to  respond  to future  circumstances
with necessary  certainty and flexibility,  we must have a sufficient  number of
authorized  shares to cover  any  stock  dividends  or other  transactions.  For
example,  the number of shares  currently  authorized would not be sufficient to
approve a two-for-one  stock split in the form of a 100% stock dividend  without
first  obtaining  stockholder  approval.   Under  the  proposed  certificate  of
incorporation,  the  additional  shares of common stock would be  available  for
issuance  without  further  stockholder  action,  unless  stockholder  action is
otherwise  required by Delaware law or the rules of the Nasdaq National  Market.
We are is not currently  contemplating  any stock split or stock dividend or for
any stock split or dividend to occur in the future. Furthermore, the increase in
the authorized  number of shares of common stock will provide us with additional
flexibility with regard to any future acquisitions.  If the proposal to increase
the number of shares  reserved for issuance  under the equity  incentive plan is
approved,  we will also need  additional  shares of common  stock to issue  when
additional stock options are exercised. In the future, we may also seek to issue
securities in connection with strategic business  relationships,  which could be
impractical to complete if we would be required to seek stockholder approval.


                  Our board of directors unanimously recommends
     voting for the amendment of the certificate of incorporation increasing
         the authorized number of shares of common stock to 50,000,000.


                                       7

<PAGE>


         SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

         The following table sets forth certain information, as of September 30,
1999, known to Worldtalk with respect to the beneficial  ownership of our common
stock by: (i) each  stockholder  known by us to be the beneficial  owner of more
than 5% of our common stock;  (ii) each director;  (iii) each executive  officer
named in the Summary  Compensation  Table below; and (iv) all current  directors
and executive officers as a group.

<TABLE>
         Applicable  percentage  ownership  in the  following  table is based on
14,378,825  shares of common stock  outstanding  as of September  30, 1999.  The
table  treats  as  outstanding,   for  purposes  of  calculating  each  specific
stockholder's  percent  ownership,  all warrants held by the  stockholder  as of
September 30, 1999 and all options held by the stockholder  that are exercisable
within 60 days after September 30, 1999.  Unless otherwise  indicated below, the
persons and  entities  named in the table have sole  voting and sole  investment
power with  respect  to all  shares  beneficially  owned,  subject to  community
property laws where applicable.

<CAPTION>
                                                                                                                        Percent of
                                                                                            Amount and Nature of       Outstanding
           Name of Beneficial Owner                                                         Beneficial Ownership       Common Stock
           ------------------------                                                         --------------------       ------------
<S>                                                                                                <C>                     <C>
Paul Hilal(1) ......................................................................               4,800,000               30.1%
     Hilal Capital Partners LLC
     c/o Hilal Capital Management LLC
     60 East 42nd Street, Suite 1946
     New York, NY 10165

David J. Cowan(2) ..................................................................               1,568,977               10.9
     Bessemer Venture Partners III L.P.
     1025 Old Country Road, Suite 205
     Westbury, NY 11590

Anthony Sun(3) .....................................................................               1,276,334                8.9
     Venrock Associates
     30 Rockefeller Plaza, Rm. 5508
     New York, NY 10112

Wade Woodson(4) ....................................................................                 757,333                5.3
     Sigma Partners
     2884 Sand Hill Road, Suite 121
     Menlo Park, CA 94025

Robert D. Dickinson III(5) .........................................................                 208,995                1.5

Bernard Harguindeguy(6) ............................................................                 225,000                1.5

Joseph Longo(7) ....................................................................                  66,108                 *

Max D. Hopper(8) ...................................................................                  56,250                 *

Simon Khalaf(9) ....................................................................                  45,752                 *

John G. Weald(10) ..................................................................                  25,000                 *

All officers and directors as a group (10 persons)(11) .............................               8,814,009               54.5%

<FN>
- ---------------
*    Less than 1%

(1)  Represents   1,194,667  shares  of  common  stock  held  by  Hilal  Capital
     Associates LLC,  662,833 shares held by Highbridge  International,  619,167
     shares held by Hilal Capital  International,  Ltd.,  459,667 shares held by
     Hilal  Capital QP, L.P.,  180,333  shares held by Hilal  Capital,  L.P. and
     100,000  shares held by Philip  Hilal.  This number also  includes  597,333
     shares of common stock  issuable  upon  exercise of a warrant held by Hilal
     Capital  Associates  LLC,  323,167  shares of common  stock  issuable  upon
     exercise of a warrant held by Highbridge  International,  301,333 shares of
     common stock  issuable  upon  exercise of a warrant  held by Hilal  Capital
     International,  Ltd., 223,833 shares of common stock issuable upon exercise
     of a warrant held by Hilal

                                       8

<PAGE>


     Capital QP, L.P., 87,667 shares of common stock issuable upon exercise of a
     warrant  held by Hilal  Capital,  L.P.  and 50,000  shares of common  stock
     issuable upon exercise of a warrant held by Philip Hilal. Mr. Paul Hilal, a
     member of our  board  and the  Chairman  of the  Board of  Worldtalk,  is a
     non-managing  member of Hilal Capital  Partners  LLC,  which is the general
     partner of Hilal Capital  Associates  LLC, Hilal Capital QP, L.P. and Hilal
     Capital,  L.P.  Peter K. Hilal,  M.D.,  the  brother of Paul Hilal,  is the
     managing member of Hilal Capital Partners LLC. Hilal Capital Management LLC
     is the  investment  manager for  Highbridge  International,  Ltd. and Hilal
     Capital International,  Ltd. Peter K. Hilal, M.D. is the managing member of
     Hilal  Capital   Management  LLC.  Paul  Hilal  does  not  hold  voting  or
     dispositive  control  over any shares or warrants  owned of record by Hilal
     Capital   Associates   LLC,   Highbridge   International,   Hilal   Capital
     International, Ltd., Hilal Capital QP, L.P., Hilal Capital, L.P., or Philip
     Hilal. Paul Hilal disclaims beneficial ownership of all of these shares and
     warrants.

(2)  Mr.  Cowan is a director of Worldtalk  and a general  partner of Deer III &
     Co. L.P.  ("Deer"),  the general partner of Bessemer  Venture Partners III,
     L.P. ("BVP III").  The share number includes 1,305 shares held of record by
     Mr. Cowan;  12,500  shares  subject to options  exercisable  within 60 days
     after  September  30,  1999;  1,528,929  shares  held of record by BVP III;
     22,868  shares  held of record by the general  partners of Deer;  and 3,375
     shares  over  which BVP III  exercises  voting  control,  held of record by
     individuals,  each of whom is a present or former employee or consultant to
     Bessemer Securities  Corporation,  the sole owner of the limited partner of
     BVP III. Deer is a general  partnership whose voting partners are Robert H.
     Buescher,  David J. Cowan, G. Felda Hardymon and Christopher F.O. Gabrieli.
     BVP III disclaims  beneficial  ownership of securities  held by the general
     partners of Deer and the general partners disclaim beneficial  ownership of
     securities  held by BVP III,  except  to the  extent  of  their  individual
     partnership interest.

(3)  Represents  12,500  shares of common stock  subject to options  exercisable
     within 60 days of  September  30,  1999;  872,599  shares held of record by
     Venrock Associates; and 391,235 shares held of record by Venrock Associates
     II, L.P. Each fund disclaims beneficial ownership of the shares held by the
     other.  Mr. Sun is a director of Worldtalk and a general partner of Venrock
     Associates and Venrock Associates II, L.P.

(4)  Mr.  Woodson  is a director  of  Worldtalk  and a general  partner of Sigma
     Partners II, L.P. and Sigma Associates II, L.P. The share number represents
     24,098 shares held by Mr. Woodson; 12,500 shares of common stock subject to
     options  exercisable  within 60 days of September 30, 1999;  670,458 shares
     held by Sigma Partners II, L.P.; and 50,277 shares held by Sigma Associates
     II, L.P. Each fund disclaims beneficial ownership of the shares held by the
     other.

(5)  Includes 30,937 shares subject to options  exercisable within 60 days after
     September 30, 1999. Mr. Dickinson is Worldtalk's Chief Technical Officer.

(6)  Represents  shares  subject  to  options  exercisable  within 60 days after
     September 30, 1999. Mr.  Harguindeguy is Worldtalk's  former  President and
     Chief Executive Officer.

(7)  Represents  shares  subject  to  options  exercisable  within 60 days after
     September  30,  1999.  Mr.  Longo is  Worldtalk's  former  Vice  President,
     Consulting and Customer Services.

(8)  Mr. Hopper is a director of Worldtalk.

(9)  Mr. Khalaf is Worldtalk's former Vice President, Marketing.

(10) Mr. Weald is Worldtalk's former Vice President, Engineering - Santa Clara.

(11) Includes  warrants to purchase  1,583,333 shares listed in footnote (1) and
     213,561  shares  subject  to  options  exercisable  within  60  days  after
     September  30, 1999,  including  those set forth in footnotes (2) - (5) and
     (8) above.
</FN>
</TABLE>

                                       9

<PAGE>


                              DIRECTOR COMPENSATION

         Worldtalk  reimburses the members of the board for reasonable  expenses
associated with their attendance at board meetings. All members of the board who
are not also  employees  or  consultants  of  Worldtalk,  or of an  affiliate of
Worldtalk,  are eligible to receive  options under  Worldtalk's  1996  Directors
Stock Option Plan. In June 1998, each of Messrs.  Hopper, Cowan, Sun and Woodson
received a stock option  pursuant to the directors stock option plan to purchase
5,000  shares of our common stock at a price of $5.00 per share.  These  options
vest with  respect to 25% of the shares  subject  thereto on the fifth day after
each annual  stockholders  meeting of  Worldtalk  to be held in each of the four
calendar  years after the date of grant,  so long as the  director  continuously
remains a member of the board  through  the date of vesting.  In December  1998,
Worldtalk  repriced  certain stock options that had  previously  been granted to
employees and directors. This repricing affected outstanding options to purchase
15,000  shares  granted to each of Messrs.  Cowan,  Sun and Woodson in 1996.  In
connection  with the repricing,  the exercise price of these options was reduced
from $8.00 per share to $3.50 per share.


                             EXECUTIVE COMPENSATION

<TABLE>
         The following table sets forth all compensation awarded, earned or paid
for services  rendered in all capacities to Worldtalk  during each of 1996, 1997
and 1998 to Worldtalk's  chief executive  officer and the four other most highly
compensated executive officers who were serving as executive officers at the end
of 1998,  which we refer to as the named executive  officers.  This  information
includes  the dollar  values of base  salaries and bonus  awards,  the number of
shares subject to stock options granted and certain other compensation,  if any,
whether paid or deferred.  We do not grant stock appreciation  rights and has no
long-term compensation benefits other than stock options.

<CAPTION>
                                                     Summary Compensation Table

                                                                                                  Long-Term
                                                                                                 Compensation
                                                                    Annual Compensation             Awards
                                                           -------------------------------------------------
                                                                                                   Securities
                                               Fiscal                                Other Annual   Underlying         All Other
Name and Principal Position                     Year       Salary         Bonus     Compensation(2)  Options       Compensation (2)
- ---------------------------                     ----       ------         -----     ---------------  -------       ----------------
<S>                                             <C>        <C>          <C>              <C>         <C>             <C>
Robert D. Dickinson III                         1998       135,000        46,666          --            --                227
   Chief Technical Officer                      1997       114,167          --            --          45,000(3)          --
                                                1996       100,000          --            --          45,000             --

Bernard Harguindeguy                            1998      $210,000      $ 80,000          --         175,000(4)      $    700
   Former President and Chief                   1997       173,103        70,000          --         475,000(5)           205
   Executive Officer                            1996          --          25,000          --            --               --

Simon Khalaf                                    1998       140,000        37,500          --          75,625(6)           247
   Former Vice President, Marketing             1997       134,792        30,000          --          76,875(7)           119
                                                1996       106,674        20,000          --          27,500               62

Joseph Longo                                    1998       130,000        31,000         2,480        75,000              765
   Former Vice President, Consulting            1997       115,000          --           1,725        40,000             --
   and Customer Services                        1996       103,276          --           1,545                           --

John G. Weald                                   1998       136,962        26,666          --          25,000              505
   Former Vice President,                       1997       128,471        19,000          --          20,000              217
   Engineering - Santa Clara                    1996       110,000        12,000          --            --                 79

<FN>
- ------------
(1)  Bonuses are paid at the discretion of the  compensation  committee based on
     the achievement of certain objectives.
(2)  Includes excess group term life insurance premiums.
(3)  Represents shares subject to previously  granted options that were repriced
     in April 1997.
(4)  Includes  75,000  shares  subject to previously  granted  options that were
     repriced in December 1998.
(5)  Includes  175,000  shares subject to previously  granted  options that were
     repriced in April 1997.
(6)  Includes  625  shares  subject  to  previously  granted  options  that were
     repriced in December 1998.
(7)  Includes  26,875  shares  subject to previously  granted  options that were
     repriced in April 1997.
</FN>
</TABLE>

                                       10

<PAGE>

<TABLE>
         The following  table sets forth further  information  regarding  option
grants  pursuant  to our 1996 Equity  Incentive  Plan during 1998 to each of the
named  executive  officers.  In accordance  with the rules of the Securities and
Exchange  Commission,  the SEC, the table sets forth the hypothetical  gains, or
option spreads,  that would exist for the options at the end of their respective
ten-year terms.  These gains are based on assumed rates of annual compound stock
price appreciation of 5% and 10% from the date the option was granted to the end
of the option term.
<CAPTION>
                                                        Option Grants in 1998

                                                                                                         Potential Realizable
                                      Number of        Percentage of                                   Value at Assumed Annual
                                     Securities        Total Options                                    Rates of Stock Price
                                     Underlying         Granted to                                   Appreciation for Option Term(2)
                                      Options          Employees in   Exercise Price   Expiration    -------------------------------
         Name                        Granted (1)        Fiscal 1998     Per Share         Date             5%             10%
         ----                        -----------        -----------     ---------         ----            ---             ---
<S>                                   <C>                  <C>           <C>            <C>             <C>             <C>
Robert D. Dickinson, III ...........     --                --              --              --              --              --

Bernard Harguindeguy ...............  100,000              8.8%          $ 3.00          4/17/08        $188,666        $477,121
                                       75,000(3)           6.6             3.50          9/19/07         144,722         356,460
Simon Khalaf .......................   75,000              6.6             3.00          4/17/08         141,500         358,591
                                          625(3)           0.1             3.50          2/7/06            1,044           2,501
Joseph Longo .......................   60,000              5.3             2.3125       10/28/08          99,475         240,548
                                       15,000              1.3             3.00          4/17/08          28,300          71,718
John Weald .........................   25,000              2.2             3.00          3/30/99           3,750           7,500

<FN>
- --------------
(1)  The incentive  stock options shown in the table were granted at fair market
     value and typically become  exercisable with respect to 12.5% of the shares
     on the six-month anniversary of the grant and with respect to an additional
     6.25% of the shares every three months that the optionee  renders  services
     to  Worldtalk  thereafter.  The options  shown in the table will expire ten
     years  from  the  date  of  grant,  subject  to  earlier  termination  upon
     termination of employment.

(2)  The 5% and 10% assumed annual  compound  rates of stock price  appreciation
     are mandated by the rules of the SEC and do not  represent  our estimate or
     projection of future common stock prices.

(3)  Represents the number of shares subject to previously  granted options that
     were repriced in December 1998.
</FN>
</TABLE>

<TABLE>
         The  following  table sets forth  certain  information  concerning  the
exercise of options by each of the named executive  officers during fiscal 1998,
including  the aggregate  amount of gains on the date of exercise.  In addition,
the table  includes  the  number  of  shares  covered  by both  exercisable  and
unexercisable stock options as of December 31, 1998. Also reported are values of
in-the-money  options that represent the positive  spread between the respective
exercise  prices of outstanding  stock options and $3.8125 per share,  which was
the closing price of Worldtalk's common stock as reported on the Nasdaq National
Market on December 31, 1998.

<CAPTION>
                                Aggregate Option Exercises in Fiscal 1998 and Fiscal Year-End Values

                                                                             Number of Securities         Value of Unexercised
                                                                            Underlying Unexercised      In-the-Money Options at
                                                                          Options at Fiscal Year-End       Fiscal Year-End (2)
                                                                          ---------------------------   ---------------------------
                                             Shares
                                           Acquired on         Value
           Name                              Exercise        Realized (1)  Exercisable  Unexercisable   Exercisable   Unexercisable
           ----                              --------        ------------  -----------  -------------   -----------   -------------
<S>                                           <C>          <C>                <C>           <C>            <C>             <C>
Robert D. Dickinson, III ...............        --               --           19,687         25,313       $  1,230       $  1,682

Bernard Harguindeguy ...................        --               --          135,937        264,063         23,728         95,016

Simon Khalaf ...........................      10,550       $   30,858.75      88,081        100,246        130,112         63,742

Joseph Longo ...........................       5,000           12,500.00      38,283        106,888         86,420        131,255

John Weald .............................        --               --           56,977           --          143,702           --

<FN>
- -------------------
(1)  Value  Realized  represents  the fair market  value of the shares of common
     stock  underlying  the option on the date of  exercise  less the  aggregate
     exercise price of the option.

                                       11

<PAGE>


(2)  These  values,  unlike the amounts set forth in the column  entitled  Value
     Realized,  have not been,  and may never be,  realized and are based on the
     positive  spread  between the  respective  exercise  prices of  outstanding
     options and the closing price of the Company's common stock on December 31,
     1998, the last day of trading for the fiscal year.
</FN>
</TABLE>


           COMPENSATION COMMITTEE INTERLOCKS AND INSIDER PARTICIPATION

     The compensation  committee  consists of Messrs.  Cowan and Sun, neither of
whom has any interlocking relationships as defined by the SEC.


                 CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

     From  January  1, 1998 to the  present,  there  has not been,  nor is there
currently proposed,  any transactions or series of similar transactions to which
we were, or will be, a party in which the amount involved exceeds $60,000 and in
which any of our executive  officers,  directors,  5%  beneficial  owners of our
common stock or member of the immediate  family of any of the foregoing  persons
had or will have a direct or  indirect  material  interest,  other  than  normal
compensation  arrangements  which we described  under  "Executive  Compensation"
above.

Employment Agreements

     Worldtalk has entered into an employment  agreement  with Robert  Dickinson
who is our Chief Technical Officer.  This employment  agreement provides,  among
other  things,  that upon some  corporate  transactions,  including  changes  in
control,  either all shares of stock and options held by Mr.  Dickinson  will be
assumed,  converted,  substituted  or replaced by the  successor  company or the
successor  company  may  provide  substantially  similar  consideration  to  Mr.
Dickinson as was  provided to  stockholders  or option  holders  generally  with
respect  to any  stock  or  options  held  Mr.  Dickinson.  In case of a sale of
Worldtalk,  the successor company may not terminate Mr.  Dickinson's  employment
prior to the first  anniversary  of the sale of  Worldtalk,  except  for  cause,
without giving  written  notice.  During the notice period,  which must continue
until  the  first  anniversary  of the sale of  Worldtalk,  Mr.  Dickinson  will
continue  to  collect  salary and bonus at  then-current  levels  regardless  of
whether his services are actually  required by Worldtalk or its  successor.  All
employee benefits will continue and Mr. Dickinson's  options and shares of stock
will  continue  to vest  during the period of notice,  provided  that he was not
terminated  for cause.  Upon  Worldtalk's  request made during the  twelve-month
period  following the first  anniversary  of the sale,  Mr.  Dickinson must also
provide  certain  consulting  services,  paid at an  hourly  rate  for  services
actually  performed.  During this period,  provided Mr.  Dickinson's  consulting
arrangement is not terminated for cause, his options and shares will continue to
vest.

     Worldtalk also entered into an employment  agreement with James Heisch, our
President and Chief Financial Officer. This employment agreement provides, among
other things, that upon specified corporate  transactions,  including changes of
control,  occurring  within two years  after June 4,  1999,  the  vesting of Mr.
Heisch's  options shall accelerate and be exercisable as to the number of shares
that are  vested on the date of  termination,  plus a number of shares  equal to
one-half of all shares  that  remain  unvested on the date of the closing of the
specific corporate  transaction.  In addition,  any shares that are subject to a
right of repurchase  in favor of Worldtalk  shall be released from this right of
repurchase,  as to all shares that are vested on the date of  termination,  plus
one-half of all shares  that  remain  unvested on the date of the closing of the
specific corporate transaction.

Financing

         On July 7, 1999, we entered into an agreement for the sale of shares of
common stock and warrants  for the  purchase of common  stock to  affiliates  of
Hilal Capital Management LLC and others. Under the agreement, the shares and the
warrants were placed in escrow until  conditions were satisfied,  which occurred
on July 19, 1999. On that date, a total of 3,333,334  shares at a price of $3.00
per share, and warrants to purchase up to 1,666,667  additional shares of common
stock, at an exercise price of $7.00 per share, were delivered to the investors.
A total of $10,000,000  was raised as a result of the sale of the shares and the
warrants.  The investors were provided with registration  rights relating to the
shares and the warrant shares and Worldtalk has filed a  Registration  Statement
on Form S-3  relating  to the resale of these  shares.  Each  investor  was also
granted the right to participate in any new financing of Worldtalk to the extent
of the investor's percentage ownership.

                                       12

<PAGE>


                              STOCKHOLDER PROPOSALS

     Proposals  of  stockholders  intended  to be  presented  at our 2000 annual
meeting  of  stockholders  must be  received  by us at our  principal  executive
offices no later than  December  29,  1999 in order to be  included in our proxy
statement and form of proxy relating to that meeting.


                                 OTHER BUSINESS

     Our board does not currently  intend to bring any other business before the
meeting, and, so far as we know, no matters are to be brought before the meeting
except as specified in the notice of the  meeting.  As to any business  that may
properly come before the meeting,  however,  it is intended that proxies, in the
form enclosed,  will be voted in respect thereof in accordance with the judgment
of the persons voting such proxies.

WHETHER OR NOT YOU PLAN TO ATTEND THE MEETING,  PLEASE COMPLETE,  DATE, SIGN AND
PROMPTLY RETURN THE ACCOMPANYING PROXY IN THE ENCLOSED  POSTAGE-PAID ENVELOPE SO
THAT YOUR SHARES WILL BE  REPRESENTED  AT THE MEETING.  IF THE RECORD  HOLDER OF
YOUR SHARES IS A BROKER,  BANK OR OTHER NOMINEE,  PLEASE FOLLOW THE INSTRUCTIONS
FOR VOTING THAT ARE GIVEN TO YOU BY SUCH PERSON OR ENTITY.

                                       13

<PAGE>


                                                                      Appendix A

                              WORLDTALK CORPORATION

                           1996 EQUITY INCENTIVE PLAN

                         As adopted on February 7, 1996
                        and Amended Through July 20, 1999

         1. PURPOSE.  The purpose of this Plan, as amended  herein (the "Plan"),
is to provide incentives to attract,  retain and motivate eligible persons whose
present and potential contributions are important to the success of the Company,
its Parent,  Subsidiaries  and  Affiliates,  by offering them an  opportunity to
participate  in the  Company's  future  performance  through  awards of Options,
Restricted  Stock and Stock Bonuses.  Capitalized  terms not defined in the text
are defined in Section 23.

         2. SHARES SUBJECT TO THE PLAN.

                  2.1 Number of Shares  Available.  Subject to Sections  2.2 and
18, the total  number of Shares  reserved and  available  for grant and issuance
pursuant  to this  Plan  will be  3,750,000*  Shares  as of July  20,  1999.  In
addition, on July 1, 2000 and each anniversary thereafter,  the aggregate number
of Shares  reserved and available  for grant and issuance  pursuant to this Plan
will be increased  automatically  by a number of Shares  equal to three  percent
(3%) of the  total  outstanding  shares  of the  Company  as of the  immediately
preceding June 30, unless the Board  determines prior to such increase of Shares
that all or a part of the  increase  shall not occur for such  year.  Subject to
Sections 2.2 and 18,  Shares that:  (a) are subject to issuance upon exercise of
an Option  but cease to be subject  to such  Option  for any  reason  other than
exercise of such Option;  (b) are subject to an Award granted  hereunder but are
forfeited or are  repurchased by the Company at the original issue price; or (c)
are subject to an Award that  otherwise  terminates  without Shares being issued
will again be available for grant and issuance in  connection  with Awards under
this Plan granted after such cessation,  forfeiture,  repurchase or termination.
At all times the Company shall reserve and keep available a sufficient number of
Shares as shall be  required  to satisfy  the  requirements  of all  outstanding
Options  granted under this Plan and all other  outstanding  but unvested Awards
granted under this Plan.

                  2.2  Adjustment  of  Shares.  In the event  that the number of
outstanding  Shares is  changed  by a stock  dividend,  recapitalization,  stock
split,  reverse  stock  split,  subdivision,  combination,  reclassification  or
similar change in the capital  structure of the Company  without  consideration,
then (a) the number of Shares  reserved  for issuance  under this Plan,  (b) the
Exercise Prices of and number of Shares subject to outstanding  Options, and (c)
the number of Shares subject to other outstanding Awards will be proportionately
adjusted, subject to any required action by the Board or the stockholders of the
Company and compliance with applicable securities laws; provided,  however, that
fractions  of a Share will not be issued but will  either be  replaced by a cash
payment  equal to the Fair Market  Value of such  fraction of a Share or will be
rounded up to the nearest whole Share, as determined by the Committee.

         3.  ELIGIBILITY.  ISOs (as  defined  in Section 5 below) may be granted
only to employees  (including  officers and directors who are also employees but
are not members of the Compensation Committee of the Board) of the Company or of
a Parent or  Subsidiary  of the  Company.  All other  Awards  may be  granted to
employees,  officers,  directors,   consultants,   independent  contractors  and
advisors of the Company or any Parent,  Subsidiary  or Affiliate of the Company;
provided such  consultants,  contractors  and advisors render bona fide services
not in connection  with the offer and sale of  securities  in a  capital-raising
transaction.  No person will be eligible to receive more than 500,000  Shares in
any  calendar  year under this Plan  pursuant to the grant of Awards  hereunder,
other than new employees of the Company or of a Parent,  Subsidiary or Affiliate
of the Company  (including  new employees who are also officers and directors of
the Company or any Parent,  Subsidiary  or  Affiliate of the Company but are not
members of the Compensation  Committee of the Board) who are eligible to receive
up to a

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

*    Reflects (a)  amendment  adopted on June 12, 1997 to increase the number of
     Shares reserved from 1,000,000 to 1,750,000;  (b) amendment adopted on June
     12, 1998 to increase the number of Shares  reserved to  2,750,000;  and (c)
     amendment  adopted  on July 20,  1999 to  increase  the  number  of  Shares
     reserved to 3,750,000.


<PAGE>


                                                           Worldtalk Corporation
                                                      1996 Equity Incentive Plan


maximum of 750,000  Shares in the  calendar  year in which they  commence  their
employment. A person may be granted more than one Award under this Plan.

         4. ADMINISTRATION.

                  4.1 Committee Authority. This Plan will be administered by the
Committee  or by the  Board  acting as the  Committee.  Subject  to the  general
purposes,  terms and conditions of this Plan, and to the direction of the Board,
the Committee will have full power to implement and carry out this Plan. Without
limitation, the Committee will have the authority to:

                  (a) construe and interpret this Plan, any Award  Agreement and
         any other agreement or document executed pursuant to this Plan;

                  (b)  prescribe,   amend  and  rescind  rules  and  regulations
         relating to this Plan;

                  (c) select persons to receive Awards;

                  (d) determine the form and terms of Awards;

                  (e)  determine  the  number of  Shares or other  consideration
         subject to Awards;

                  (f)  determine  whether  Awards  will be  granted  singly,  in
         combination with, in tandem with, in replacement of, or as alternatives
         to, other Awards under this Plan or any other incentive or compensation
         plan of the  Company or any  Parent,  Subsidiary  or  Affiliate  of the
         Company;

                  (g) grant waivers of Plan or Award conditions;

                  (h)  determine  the  vesting,  exercisability  and  payment of
         Awards;

                  (i) correct any defect,  supply any omission or reconcile  any
         inconsistency in this Plan, any Award or any Award Agreement;

                  (j) determine whether an Award has been earned; and

                  (k) make other  determinations  necessary or advisable for the
         administration of this Plan.

                  4.2  Committee  Discretion.  Any  determination  made  by  the
Committee  with respect to any Award will be made in its sole  discretion at the
time of grant of the Award or,  unless in  contravention  of any express term of
this Plan or Award, at any later time, and such  determination will be final and
binding on the Company and on all persons  having an interest in any Award under
this Plan. The Committee may delegate to one or more officers of the Company the
authority to grant an Award under this Plan to Participants who are not Insiders
of the Company.

                  4.3 Exchange Act  Requirements.  If two or more members of the
Board are Outside Directors, the Committee will be comprised of at least two (2)
members  of the  Board,  all of whom are  Outside  Directors  and  Disinterested
Persons.  During  all times  that the  Company  is  subject to Section 16 of the
Exchange  Act,  the  Company  will take  appropriate  steps to  comply  with the
disinterested  administration requirements of Section 16(b) of the Exchange Act,
which will consist of the appointment by the Board of a Committee  consisting of
not less than two (2)  members  of the  Board,  each of whom is a  Disinterested
Person.

         5. OPTIONS.  The  Committee  may grant Options to eligible  persons and
will determine  whether such Options will be Incentive  Stock Options within the
meaning of the Code ("ISOs") or Nonqualified Stock Options ("NQSOs"), the number
of Shares subject to the Option,  the Exercise  Price of the Option,  the period
during which the Option may be exercised,  and all other terms and conditions of
the Option, subject to the following:

                                      -2-

<PAGE>


                                                           Worldtalk Corporation
                                                      1996 Equity Incentive Plan


                  5.1 Form of Option Grant.  Each Option granted under this Plan
will be evidenced by an Award Agreement which will expressly identify the Option
as an ISO or an NQSO ("Stock  Option  Agreement"),  and will be in such form and
contain such provisions (which need not be the same for each Participant) as the
Committee  may from time to time  approve,  and which  will  comply  with and be
subject to the terms and conditions of this Plan.

                  5.2 Date of Grant.  The date of grant of an Option will be the
date on which the Committee makes the determination to grant such Option, unless
otherwise  specified by the Committee.  The Stock Option Agreement and a copy of
this Plan will be delivered to the  Participant  within a reasonable  time after
the granting of the Option.

                  5.3 Exercise  Period.  Options will be exercisable  within the
times or upon the events  determined  by the Committee as set forth in the Stock
Option Agreement governing such Option;  provided,  however, that no Option will
be  exercisable  after the expiration of ten (10) years from the date the Option
is granted; and provided further that no ISO granted to a person who directly or
by  attribution  owns more than ten percent (10%) of the total  combined  voting
power of all classes of stock of the Company or of any Parent or  Subsidiary  of
the Company ("Ten Percent Stockholder") will be exercisable after the expiration
of five (5)  years  from the date the ISO is  granted.  The  Committee  also may
provide for the  exercise of Options to become  exercisable  at one time or from
time to time,  periodically or otherwise, in such number of Shares or percentage
of Shares as the Committee determines.

                  5.4 Exercise  Price.  The Exercise  Price of an Option will be
determined by the Committee  when the Option is granted and may be not less than
85% of the Fair Market Value of the Shares on the date of grant;  provided that:
(a) the  Exercise  Price of an ISO will be not less than 100% of the Fair Market
Value of the Shares on the date of grant;  and (b) the Exercise Price of any ISO
granted  to a Ten  Percent  Stockholder  will not be less  than 110% of the Fair
Market  Value  of the  Shares  on the  date of  grant.  Payment  for the  Shares
purchased may be made in accordance with Section 8 of this Plan.

                  5.5  Method of  Exercise.  Options  may be  exercised  only by
delivery  to the  Company of a written  stock  option  exercise  agreement  (the
"Exercise Agreement") in a form approved by the Committee (which need not be the
same for each  Participant),  stating the number of Shares being purchased,  the
restrictions  imposed on the Shares purchased under such Exercise Agreement,  if
any, and such representations and agreements regarding Participant's  investment
intent and access to information  and other matters,  if any, as may be required
or desirable by the Company to comply with applicable  securities laws, together
with  payment  in full of the  Exercise  Price for the  number  of Shares  being
purchased.

                  5.6  Termination.  Notwithstanding  the  exercise  periods set
forth in the  Stock  Option  Agreement,  exercise  of an Option  will  always be
subject to the following:

                  (a) If the  Participant  is  Terminated  for any reason except
         death  or   Disability,   then  the   Participant   may  exercise  such
         Participant's  Options only to the extent that such Options  would have
         been  exercisable  upon the  Termination  Date no later  than three (3)
         months  after the  Termination  Date (or such  shorter  or longer  time
         period  not  exceeding  five  (5)  years  as may be  determined  by the
         Committee,  with  any  exercise  beyond  three  (3)  months  after  the
         Termination Date deemed to be an NQSO), but in any event, no later than
         the expiration date of the Options.

                  (b) If the Participant is Terminated  because of Participant's
         death or Disability  (or the  Participant  dies within three (3) months
         after a  Termination  other  than  because  of  Participant's  death or
         disability),  then  Participant's  Options may be exercised only to the
         extent that such Options would have been  exercisable by Participant on
         the  Termination   Date  and  must  be  exercised  by  Participant  (or
         Participant's  legal  representative  or authorized  assignee) no later
         than twelve (12) months after the Termination  Date (or such shorter or
         longer time period not exceeding five (5) years as may be determined by
         the Committee, with any such exercise beyond (a) three (3) months after
         the Termination Date when the Ter-

                                      -3-

<PAGE>


                                                           Worldtalk Corporation
                                                      1996 Equity Incentive Plan


         mination  is for any  reason  other  than  the  Participant's  death or
         Disability,  or (b) twelve (12) months after the Termination  Date when
         the Termination is for Participant's death or Disability,  deemed to be
         an NQSO),  but in any event no later  than the  expiration  date of the
         Options.

                  5.7  Limitations  on  Exercise.  The  Committee  may specify a
reasonable  minimum number of Shares that may be purchased on any exercise of an
Option,  provided  that such minimum  number will not prevent  Participant  from
exercising  the  Option  for the full  number  of  Shares  for  which it is then
exercisable.

                  5.8  Limitations  on ISOs.  The  aggregate  Fair Market  Value
(determined  as of the date of grant) of Shares  with  respect to which ISOs are
exercisable for the first time by a Participant  during any calendar year (under
this Plan or under any other  incentive  stock option plan of the Company or any
Affiliate, Parent or Subsidiary of the Company) will not exceed $100,000. If the
Fair Market  Value of Shares on the date of grant with respect to which ISOs are
exercisable for the first time by a Participant during any calendar year exceeds
$100,000,  then the  Options  for the first  $100,000  worth of Shares to become
exercisable in such calendar year will be ISOs and the Options for the amount in
excess of $100,000 that become  exercisable in that calendar year will be NQSOs.
In the event that the Code or the regulations promulgated thereunder are amended
after the  Effective  Date of this Plan to provide for a different  limit on the
Fair Market  Value of Shares  permitted  to be subject to ISOs,  such  different
limit will be  automatically  incorporated  herein and will apply to any Options
granted after the effective date of such amendment.

                  5.9  Modification,  Extension or Renewal.  The  Committee  may
modify,  extend or renew  outstanding  Options  and  authorize  the grant of new
Options in substitution therefor, provided that any such action may not, without
the written consent of a Participant,  impair any of such  Participant's  rights
under any Option  previously  granted.  Any  outstanding  ISO that is  modified,
extended,  renewed or  otherwise  altered  will be treated  in  accordance  with
Section  424(h) of the Code.  The  Committee  may reduce the  Exercise  Price of
outstanding  Options without the consent of  Participants  affected by a written
notice to them;  provided,  however,  that the Exercise Price may not be reduced
below the minimum  Exercise  Price that would be permitted  under Section 5.4 of
this Plan for  Options  granted  on the date the  action is taken to reduce  the
Exercise Price.

                  5.10 No Disqualification.  Notwithstanding any other provision
in this Plan, no term of this Plan relating to ISOs will be interpreted, amended
or altered,  nor will any  discretion  or authority  granted  under this Plan be
exercised,  so as to  disqualify  this Plan  under  Section  422 of the Code or,
without the consent of the  Participant  affected,  to disqualify  any ISO under
Section 422 of the Code.

         6.  RESTRICTED  STOCK.  A  Restricted  Stock  Award  is an offer by the
Company to sell to an eligible  person Shares that are subject to  restrictions.
The Committee will determine to whom an offer will be made, the number of Shares
the  person  may  purchase,  the price to be paid (the  "Purchase  Price"),  the
restrictions  to which the  Shares  will be  subject,  and all  other  terms and
conditions of the Restricted Stock Award, subject to the following:

                  6.1 Form of  Restricted  Stock Award.  All  purchases  under a
Restricted  Stock Award made pursuant to this Plan will be evidenced by an Award
Agreement  ("Restricted  Stock  Purchase  Agreement")  that will be in such form
(which need not be the same for each  Participant)  as the  Committee  will from
time to time  approve,  and will  comply  with and be  subject  to the terms and
conditions of this Plan.  The offer of Restricted  Stock will be accepted by the
Participant's  execution and delivery of the Restricted Stock Purchase Agreement
and full payment for the Shares to the Company  within thirty (30) days from the
date the Restricted Stock Purchase Agreement is delivered to the person. If such
person does not execute and deliver  the  Restricted  Stock  Purchase  Agreement
along with full payment for the Shares to the Company  within  thirty (30) days,
then the offer will terminate, unless otherwise determined by the Committee.

                  6.2 Purchase Price. The Purchase Price of Shares sold pursuant
to a Restricted  Stock Award will be  determined by the Committee and will be at
least 85% of the Fair  Market  Value of the  Shares  on the date the  Restricted
Stock  Award  is  granted,  except  in  the  case  of a  sale  to a Ten  Percent
Stockholder, in which case

                                      -4-

<PAGE>


                                                           Worldtalk Corporation
                                                      1996 Equity Incentive Plan


the  Purchase  Price  will be 100% of the  Fair  Market  Value.  Payment  of the
Purchase Price may be made in accordance with Section 8 of this Plan.

                  6.3  Restrictions.  Restricted Stock Awards will be subject to
such  restrictions  (if any) as the  Committee  may impose.  The  Committee  may
provide for the lapse of such restrictions in installments and may accelerate or
waive  such  restrictions,  in whole  or  part,  based  on  length  of  service,
performance or such other factors or criteria as the Committee may determine.

         7. STOCK BONUSES.

                  7.1  Awards  of Stock  Bonuses.  A Stock  Bonus is an award of
Shares  (which may consist of  Restricted  Stock) for  services  rendered to the
Company or any Parent, Subsidiary or Affiliate of the Company. A Stock Bonus may
be awarded for past  services  already  rendered to the Company,  or any Parent,
Subsidiary or Affiliate of the Company  (provided that the Participant  pays the
Company  the par  value  of the  Shares  awarded  by such  Stock  Bonus in cash)
pursuant to an Award  Agreement  (the "Stock Bonus  Agreement")  that will be in
such form (which  need not be the same for each  Participant)  as the  Committee
will from time to time approve, and will comply with and be subject to the terms
and conditions of this Plan. A Stock Bonus may be awarded upon  satisfaction  of
such performance goals as are set out in advance in the Participant's individual
Award Agreement (the  "Performance  Stock Bonus Agreement") that will be in such
form (which need not be the same for each  Participant)  as the  Committee  will
from time to time approve,  and will comply with and be subject to the terms and
conditions of this Plan.  Stock Bonuses may vary from Participant to Participant
and between groups of Participants, and may be based upon the achievement of the
Company,  Parent,  Subsidiary or Affiliate and/or individual performance factors
or upon such other criteria as the Committee may determine.

                  7.2 Terms of Stock  Bonuses.  The Committee will determine the
number of Shares to be awarded to the  Participant  and whether such Shares will
be Restricted Stock. If the Stock Bonus is being earned upon the satisfaction of
performance  goals  pursuant to a Performance  Stock Bonus  Agreement,  then the
Committee will determine: (a) the nature, length and starting date of any period
during which performance is to be measured (the  "Performance  Period") for each
Stock Bonus;  (b) the  performance  goals and criteria to be used to measure the
performance,  if any;  (c) the  number  of  Shares  that may be  awarded  to the
Participant;  and (d) the extent to which such Stock  Bonuses  have been earned.
Performance Periods may overlap and Participants may participate  simultaneously
with respect to Stock Bonuses that are subject to different  Performance Periods
and different performance goals and other criteria.  The number of Shares may be
fixed or may vary in accordance with such performance  goals and criteria as may
be determined by the Committee.  The Committee may adjust the performance  goals
applicable  to the  Stock  Bonuses  to  take  into  account  changes  in law and
accounting  or tax rules and to make such  adjustments  as the  Committee  deems
necessary  or  appropriate  to reflect  the impact of  extraordinary  or unusual
items, events or circumstances to avoid windfalls or hardships.

                  7.3 Form of Payment.  The earned  portion of a Stock Bonus may
be paid  currently  or on a  deferred  basis  with  such  interest  or  dividend
equivalent,  if any, as the Committee may determine.  Payment may be made in the
form of  cash,  whole  Shares,  including  Restricted  Stock,  or a  combination
thereof,  either in a lump sum payment or in installments,  all as the Committee
will determine.

                  7.4 Termination During Performance Period. If a Participant is
Terminated  during a Performance  Period for any reason,  then such  Participant
will be entitled to payment (whether in Shares,  cash or otherwise) with respect
to the Stock Bonus only to the extent  earned as of the date of  Termination  in
accordance with the Performance Stock Bonus Agreement, unless the Committee will
determine otherwise.

         8. PAYMENT FOR SHARE PURCHASES.

                  8.1  Payment.  Payment for Shares  purchased  pursuant to this
Plan  may be made in cash  (by  check)  or,  where  expressly  approved  for the
Participant by the Committee and where permitted by law:

                  (a) by  cancellation  of  indebtedness  of the  Company to the
         Participant;

                                      -5-

<PAGE>


                                                           Worldtalk Corporation
                                                      1996 Equity Incentive Plan


                  (b) by surrender of shares that either: (1) have been owned by
         Participant  for more than six (6) months and have been paid for within
         the meaning of SEC Rule 144 (and,  if such shares were  purchased  from
         the Company by use of a promissory  note, such note has been fully paid
         with respect to such shares);  or (2) were obtained by  Participant  in
         the public market;

                  (c) by tender of a full recourse  promissory  note having such
         terms as may be approved  by the  Committee  and bearing  interest at a
         rate  sufficient to avoid  imputation of income under  Sections 483 and
         1274 of the Code;  provided,  however,  that  Participants  who are not
         employees  or directors of the Company will not be entitled to purchase
         Shares with a promissory note unless the note is adequately  secured by
         collateral other than the Shares;  provided,  further, that the portion
         of the  Purchase  Price equal to the par value of the  Shares,  if any,
         must be paid in cash;

                  (d)  by  waiver  of   compensation   due  or  accrued  to  the
         Participant for services rendered;  provided, further, that the portion
         of the  Purchase  Price equal to the par value of the  Shares,  if any,
         must be paid in cash;

                  (e) with respect only to purchases upon exercise of an Option,
         and provided that a public market for the Company's stock exists:

                           (1)  through a "same day  sale"  commitment  from the
                  Participant  and a  broker-dealer  that  is a  member  of  the
                  National  Association of Securities Dealers (an "NASD Dealer")
                  whereby the  Participant  irrevocably  elects to exercise  the
                  Option and to sell a portion of the Shares so purchased to pay
                  for  the   Exercise   Price,   and  whereby  the  NASD  Dealer
                  irrevocably commits upon receipt of such Shares to forward the
                  Exercise Price directly to the Company; or

                           (2)   through   a   "margin"   commitment   from  the
                  Participant   and  a  NASD  Dealer  whereby  the   Participant
                  irrevocably  elects to  exercise  the Option and to pledge the
                  Shares so purchased to the NASD Dealer in a margin  account as
                  security  for a loan from the NASD Dealer in the amount of the
                  Exercise  Price,  and  whereby  the  NASD  Dealer  irrevocably
                  commits  upon  receipt of such Shares to forward the  Exercise
                  Price directly to the Company; or

                  (f) by any combination of the foregoing.

                  8.2 Loan  Guarantees.  The Committee may help the  Participant
pay for Shares  purchased  under this Plan by  authorizing  a  guarantee  by the
Company of a third-party loan to the Participant.

         9. WITHHOLDING TAXES.

                  9.1 Withholding Generally. Whenever Shares are to be issued in
satisfaction  of Awards  granted  under this Plan,  the  Company may require the
Participant  to remit to the Company an amount  sufficient  to satisfy  federal,
state  and local  withholding  tax  requirements  prior to the  delivery  of any
certificate or certificates for such Shares. Whenever, under this Plan, payments
in satisfaction of Awards are to be made in cash, such payment will be net of an
amount  sufficient  to  satisfy  federal,   state,  and  local  withholding  tax
requirements.

                  9.2 Stock  Withholding.  When,  under  applicable  tax laws, a
Participant  incurs tax liability in connection  with the exercise or vesting of
any Award that is subject to tax withholding and the Participant is obligated to
pay the Company the amount required to be withheld,  the Committee may allow the
Participant  to satisfy the minimum  withholding  tax  obligation by electing to
have the  Company  withhold  from the Shares to be issued  that number of Shares
having a Fair Market Value equal to the minimum amount  required to be withheld,
determined on the date that the amount of tax to be withheld is to be determined
(the "Tax Date").  All  elections by a Participant  to have Shares  withheld for
this purpose will be made in writing in a form  acceptable  to the Committee and
will be subject to the following restrictions:

                  (a) the  election  must be made on or prior to the  applicable
         Tax Date;

                                      -6-

<PAGE>


                                                           Worldtalk Corporation
                                                      1996 Equity Incentive Plan


                  (b) once made,  then except as provided  below,  the  election
         will  be  irrevocable  as to the  particular  Shares  as to  which  the
         election is made;

                  (c)  all   elections   will  be  subject  to  the  consent  or
         disapproval of the Committee;

                  (d) if the  Participant  is an Insider  and if the  Company is
         subject to Section  16(b) of the Exchange Act: (1) the election may not
         be made within six (6) months of the date of grant of the Award, except
         as otherwise permitted by SEC Rule 16b-3(e) under the Exchange Act, and
         (2)  either  (A)  the  election  to  use  stock   withholding  must  be
         irrevocably  made  at  least  six (6)  months  prior  to the  Tax  Date
         (although  such  election  may be  revoked at any time at least six (6)
         months  prior to the Tax  Date) or (B) the  exercise  of the  Option or
         election  to use  stock  withholding  must be made in the ten  (10) day
         period  beginning  on  the  third  day  following  the  release  of the
         Company's  quarterly or annual summary  statement of sales or earnings;
         and

                  (e) in the event that the Tax Date is  deferred  until six (6)
         months after the delivery of Shares  under  Section  83(b) of the Code,
         the Participant  will receive the full number of Shares with respect to
         which the exercise occurs, but such Participant will be unconditionally
         obligated to tender back to the Company the proper  number of Shares on
         the Tax Date.

         10. PRIVILEGES OF STOCK OWNERSHIP.

                  10.1 Voting and Dividends. No Participant will have any of the
rights of a  stockholder  with respect to any Shares until the Shares are issued
to the Participant.  After Shares are issued to the Participant, the Participant
will be a stockholder  and have all the rights of a stockholder  with respect to
such  Shares,  including  the right to vote and receive all  dividends  or other
distributions made or paid with respect to such Shares;  provided,  that if such
Shares are Restricted  Stock, then any new,  additional or different  securities
the  Participant  may become  entitled to receive with respect to such Shares by
virtue of a stock dividend,  stock split or any other change in the corporate or
capital structure of the Company will be subject to the same restrictions as the
Restricted Stock; provided,  further, that the Participant will have no right to
retain such stock dividends or stock  distributions  with respect to Shares that
are repurchased at the Participant's original Purchase Price pursuant to Section
12.

                  10.2 Financial Statements.  The Company will provide financial
statements to each Participant  prior to such  Participant's  purchase of Shares
under  this Plan (if  requested  by the  Participant),  and to each  Participant
annually during the period such  Participant has Awards  outstanding;  provided,
however,  the Company will not be required to provide such financial  statements
to Participants whose services in connection with the Company assure them access
to equivalent information.

         11.  TRANSFERABILITY.  Awards granted under this Plan, and any interest
therein,  will not be transferable or assignable by Participant,  and may not be
made subject to execution, attachment or similar process, otherwise than by will
or by the laws of descent and  distribution  or as consistent  with the specific
Plan and Award Agreement provisions relating thereto. During the lifetime of the
Participant  an  Award  will be  exercisable  only by the  Participant,  and any
elections with respect to an Award, may be made only by the Participant.

         12.  RESTRICTIONS  ON SHARES.  At the discretion of the Committee,  the
Company may reserve to itself and/or its  assignee(s) in the Award Agreement (a)
a right of first  refusal  to  purchase  all  Shares  that a  Participant  (or a
subsequent  transferee)  may propose to transfer to a third party,  and/or (b) a
right to repurchase a portion of or all Shares held by a  Participant  following
such  Participant's  Termination  at any time within  ninety (90) days after the
later of  Participant's  Termination  Date and the  date  Participant  purchases
Shares  under  this  Plan,  for  cash  and/or  cancellation  of  purchase  money
indebtedness,  at: (A) with  respect to Shares that are  "Vested" (as defined in
the Award or Exercise Agreement),  the higher of Participant's original Purchase
Price or the Fair Market Value of such Shares on Participant's Termination Date;
or (B) with  respect to Shares that are not "Vested" (as defined in the Award or
Exercise Agreement), at the Participant's original Purchase Price.

         13.  CERTIFICATES.  All  certificates  for  Shares or other  securities
delivered under this Plan will be subject to such stock transfer orders, legends
and other restrictions as the Committee may deem necessary or

                                      -7-

<PAGE>


                                                           Worldtalk Corporation
                                                      1996 Equity Incentive Plan


advisable, including restrictions under any applicable federal, state or foreign
securities law, or any rules,  regulations and other  requirements of the SEC or
any stock  exchange or automated  quotation  system upon which the Shares may be
listed or quoted.

         14.  ESCROW;  PLEDGE  OF  SHARES.  To  enforce  any  restrictions  on a
Participant's  Shares,  the Committee may require the Participant to deposit all
certificates   representing   Shares,   together  with  stock  powers  or  other
instruments  of transfer  approved by the Committee,  appropriately  endorsed in
blank,  with the Company or an agent designated by the Company to hold in escrow
until such restrictions have lapsed or terminated, and the Committee may cause a
legend  or  legends   referencing   such   restrictions  to  be  placed  on  the
certificates.  Any  Participant who is permitted to execute a promissory note as
partial or full consideration for the purchase of Shares under this Plan will be
required  to pledge and  deposit  with the  Company all or part of the Shares so
purchased as collateral to secure the payment of Participant's obligation to the
Company under the promissory  note;  provided,  however,  that the Committee may
require or accept other or additional  forms of collateral to secure the payment
of such  obligation  and,  in any event,  the  Company  will have full  recourse
against the Participant under the promissory note  notwithstanding any pledge of
the Participant's  Shares or other collateral.  In connection with any pledge of
the Shares, Participant will be required to execute and deliver a written pledge
agreement  in such form as the  Committee  will from time to time  approve.  The
Shares  purchased with the promissory  note may be released from the pledge on a
pro rata basis as the promissory note is paid.

         15.  EXCHANGE AND BUYOUT OF AWARDS.  The Committee  may, at any time or
from time to time,  authorize  the Company,  with the consent of the  respective
Participants, to issue new Awards in exchange for the surrender and cancellation
of any or all  outstanding  Awards.  The  Committee  may at any  time buy from a
Participant an Award previously  granted with payment in cash, Shares (including
Restricted Stock) or other consideration,  based on such terms and conditions as
the Committee and the Participant may agree.

         16. SECURITIES LAW AND OTHER REGULATORY  COMPLIANCE.  An Award will not
be effective unless such Award is in compliance with all applicable  federal and
state securities  laws, rules and regulations of any governmental  body, and the
requirements of any stock exchange or automated  quotation system upon which the
Shares may then be listed or quoted,  as they are in effect on the date of grant
of the Award and also on the date of exercise or other issuance. Notwithstanding
any other  provision in this Plan,  the Company will have no obligation to issue
or deliver  certificates  for Shares under this Plan prior to: (a) obtaining any
approvals from governmental  agencies that the Company  determines are necessary
or advisable;  and/or (b) completion of any registration or other  qualification
of such Shares under any state or federal law or ruling of any governmental body
that the Company  determines to be necessary or  advisable.  The Company will be
under no obligation to register the Shares with the SEC or to effect  compliance
with the  registration,  qualification  or  listing  requirements  of any  state
securities laws, stock exchange or automated  quotation system,  and the Company
will have no liability for any inability or failure to do so.

         17. NO OBLIGATION TO EMPLOY.  Nothing in this Plan or any Award granted
under this Plan will confer or be deemed to confer on any  Participant any right
to continue in the employ of, or to continue any other  relationship  with,  the
Company or any Parent,  Subsidiary  or  Affiliate of the Company or limit in any
way the right of the  Company or any  Parent,  Subsidiary  or  Affiliate  of the
Company to terminate Participant's employment or other relationship at any time,
with or without cause.

         18. CORPORATE TRANSACTIONS.

                  18.1 Assumption or Replacement of Awards by Successor.  In the
event of:

                  (a) a dissolution or liquidation of the Company,

                  (b) a merger or  consolidation in which the Company is not the
         surviving  corporation  (other  than a merger or  consolidation  with a
         wholly  owned  subsidiary,  a  reincorporation  of  the  Company  in  a
         different  jurisdiction,  or other  transaction  in  which  there is no
         substantial change in the stockholders of the Company or their relative
         stock holdings and the Awards granted under this Plan are

                                      -8-

<PAGE>


                                                           Worldtalk Corporation
                                                      1996 Equity Incentive Plan


         assumed,  converted  or replaced by the  successor  corporation,  which
         assumption will be binding on all Participants),

                  (c) a merger in which the Company is the surviving corporation
         but  after  which  the  stockholders  of the  Company  (other  than any
         stockholder which merges (or which owns or controls another corporation
         which  merges) with the Company in such  merger)  cease to own at least
         90% of the  issued  and  outstanding  capital  stock  or  other  equity
         interests in the Company,

                  (d) the sale of all or substantially  all of the assets of the
         Company; or

                  (e) any other  transaction  which  qualifies  as a  "corporate
         transaction"  under Section 424(a) of the Code wherein the stockholders
         of the  Company  give up all of their  equity  interest  in the Company
         (except for the  acquisition,  sale or transfer of all or substantially
         all  of  the  outstanding   shares  of  the  Company  from  or  by  the
         stockholders of the Company),

then,  subject to  Section  18.3  below,  any or all  outstanding  Awards may be
assumed,  converted or replaced by the  successor  corporation  (if any),  which
assumption,  conversion or replacement will be binding on all  Participants.  In
the alternative and subject to Section 18.3 below, the successor corporation may
substitute  equivalent Awards or provide  substantially similar consideration to
Participants  as was  provided to  stockholders  (after  taking into account the
existing provisions of the Awards). The successor corporation may also issue, in
place  of   outstanding   Shares  of  the  Company  held  by  the   Participant,
substantially   similar   shares  or  other   property   subject  to  repurchase
restrictions no less favorable to the Participant.

                  18.2  Termination  of  Awards.  In the event of a  transaction
described  in clauses  (a)  through (e) of Section  18.1 and  provided  that the
successor  corporation  (if any) does not assume or substitute  all  outstanding
Awards as  provided  above,  such  Awards will expire on (and if the Company has
reserved to itself a right to  repurchase  shares issued upon exercise of Awards
at the original purchase price of such shares,  such right shall terminate upon)
such event at such time and on such conditions as the Board shall determine upon
twenty (20) days advance  written  notice to  Participants  holding  outstanding
Awards.

                  18.3  Acceleration  of  Vesting.  In  the  event  of a  merger
described in either clause (b) or (c) of Section 18.1 above,  the sale of all or
substantially  all of the assets of the  Company as a going  concern in a single
transaction  or series of  related  transactions  or the sale or  transfer  of a
majority of the  outstanding  shares of the Company by the  stockholders  of the
Company in a single  transaction or a series of related  transactions other than
market transactions to unrelated purchasers (an "Acquisition") and:

                  (a) if the successor  corporation,  if any (the  "Successor"),
         does not assume or substitute Awards as provided above in Section 18.1,
         then each  outstanding  Award granted on or after October 18, 1996 that
         is not totally "Vested" (as defined in the Award or Exercise Agreement)
         shall immediately accelerate and become exercisable as to the number of
         shares that is equal to (i) the number of shares  then  "Vested" at the
         closing of the  Acquisition,  plus (ii) the number of shares that would
         have  "Vested" had the Award been held for the year after such closing.
         Awards  granted  before  October  18, 1996 will  excelerate  and become
         exercisable  in  full.  Such  acceleration  shall be  under  the  terms
         described by the Board in the notice  described in the last sentence of
         Section 18.2; or

                  (b) if the Successor assumes or substitutes Awards as provided
         above  in  Section  18.1,  but any  Participant's  employment  with the
         Successor or any Parent,  Subsidiary  of Affiliate of the Successor (as
         the  definitions  for such terms  shall be revised  to  substitute  the
         Successor for the Company) is terminated by the Successor, such Parent,
         Subsidiary  or  Affiliate  without  "cause"  within  one year after the
         Acquisition,  then  the  outstanding  Awards  held  by  the  terminated
         employee, as so substituted or assumed, and granted on or after October
         18, 1996 shall provide that they will likewise  immediately  accelerate
         and become  exercisable on the date of such  termination such that they
         are  exercisable for (i) the number of shares then "Vested" at the date
         of such  termination,  plus (ii) the  number of shares  that would have
         "Vested"  had the Award been held for the year after such  termination.
         Awards  granted  before  October 18, 1996 will  accelerate  vesting and
         become exercisable in full upon such termination. For purposes hereof

                                      -9-

<PAGE>


                                                           Worldtalk Corporation
                                                      1996 Equity Incentive Plan


         "cause" for termination of any  Participant's  employment will exist at
         any time after the  happening of one or more of the  following  events:
         (i)  Participant's  conviction of a felony  involving moral  turpitude;
         (ii)  any  willful  act  or  acts  of  dishonesty   undertaken  by  the
         Participant  and  intended  to result in  substantial  gain or personal
         enrichment of  Participant,  directly or indirectly,  at the expense of
         the Successor, such Parent, Subsidiary or Affiliate;  (iii) any willful
         act or misconduct which is materially and demonstrably injurious to the
         Successor,  such Parent,  Subsidiary or Affiliate; (iv) substantial and
         repeated  neglect  of  Participant's  responsibility,   or  malfeasance
         thereof,  that remains uncured after thirty (30) days written notice of
         such  neglect;  or (v) the death or  disability  (within the meaning of
         Section 22(e)(3) of the Code) of the Participant.

                  18.4 Other Treatment of Awards.  Subject to any greater rights
granted to  Participants  under the foregoing  provisions of this Section 18, in
the event of the  occurrence of any  transaction  described in Section 18.1, any
outstanding  Awards will be treated as provided in the  applicable  agreement or
plan of merger, consolidation, dissolution, liquidation, sale of assets or other
"corporate transaction."

                  18.5  Assumption of Awards by the Company.  The Company,  from
time to time,  also may  substitute  or assume  outstanding  awards  granted  by
another company, whether in connection with an acquisition of such other company
or otherwise,  by either;  (a) granting an Award under this Plan in substitution
of such other  company's  award;  or (b)  assuming  such award as if it had been
granted  under this Plan if the terms of such assumed  award could be applied to
an Award  granted  under this Plan.  Such  substitution  or  assumption  will be
permissible  if the holder of the  substituted  or assumed award would have been
eligible to be granted an Award under this Plan if the other company had applied
the rules of this Plan to such grant.  In the event the Company assumes an award
granted by another  company,  the terms and conditions of such award will remain
unchanged  (except that the  exercise  price and the number and nature of Shares
issuable  upon  exercise  of any  such  option  will be  adjusted  appropriately
pursuant  to Section  424(a) of the Code).  In the event the  Company  elects to
grant a new Option rather than assuming an existing option,  such new Option may
be granted with a similarly adjusted Exercise Price.

         19. ADOPTION AND STOCKHOLDER APPROVAL.  This Plan will become effective
on the date on which the  registration  statement  filed by the Company with the
SEC under the Securities  Act  registering  the initial  public  offering of the
Company's Common Stock is declared  effective by the SEC (the "Effective Date");
provided,  however,  that if the  Effective  Date  does not  occur on or  before
December 31, 1996, this Plan will terminate as of December 31, 1996 having never
become effective. This Plan shall be approved by the stockholders of the Company
(excluding  Shares issued  pursuant to this Plan),  consistent  with  applicable
laws, within twelve (12) months before or after the date this Plan is adopted by
the Board.  Upon the Effective Date, the Board may grant Awards pursuant to this
Plan; provided,  however,  that: (a) no Option may be exercised prior to initial
stockholder approval of this Plan; (b) no Option granted pursuant to an increase
in the  number of Shares  subject  to this Plan  approved  by the Board  will be
exercised prior to the time such increase has been approved by the  stockholders
of the Company;  and (c) in the event that stockholder approval of such increase
is not  obtained  within the time period  provided  herein,  all Awards  granted
hereunder  will be  canceled,  any Shares  issued  pursuant to any Award will be
canceled, and any purchase of Shares hereunder will be rescinded. So long as the
Company is subject to Section 16(b) of the Exchange Act, the Company will comply
with the requirements of Rule 16b-3 (or its successor), as amended, with respect
to stockholder approval.

         20. TERM OF PLAN.  Unless earlier  terminated as provided herein,  this
Plan will  terminate  ten (10) years  after the date this Plan is adopted by the
Board or, if earlier, the date of stockholder approval.

         21.  AMENDMENT  OR  TERMINATION  OF  PLAN.  The  Board  may at any time
terminate  or amend  this  Plan in any  respect,  including  without  limitation
amendment of any form of Award  Agreement or instrument to be executed  pursuant
to this Plan; provided,  however,  that the Board will not, without the approval
of the stockholders of the Company,  amend this Plan in any manner that requires
such stockholder  approval  pursuant to the Code or the regulations  promulgated
thereunder as such  provisions  apply to ISO plans or (if the Company is subject
to the  Exchange  Act or Section  16(b) of the  Exchange  Act)  pursuant  to the
Exchange  Act  or  Rule  16b-3  (or  its  successor),  as  amended,  thereunder,
respectively.

                                      -10-

<PAGE>


                                                           Worldtalk Corporation
                                                      1996 Equity Incentive Plan


         22.  NONEXCLUSIVITY  OF THE PLAN.  Neither the adoption of this Plan by
the Board,  the submission of this Plan to the  stockholders  of the Company for
approval,  nor any  provision  of this Plan will be  construed  as creating  any
limitations  on the power of the  Board to adopt  such  additional  compensation
arrangements  as it may  deem  desirable,  including,  without  limitation,  the
granting of stock options and bonuses  otherwise  than under this Plan, and such
arrangements may be either  generally  applicable or applicable only in specific
cases.

         23.  DEFINITIONS.  As used in this Plan, the following  terms will have
the following meanings:

"Affiliate"  means any corporation that directly,  or indirectly  through one or
more  intermediaries,  controls or is controlled  by, or is under common control
with, another corporation,  where "control" (including the terms "controlled by"
and "under common control with") means the  possession,  direct or indirect,  of
the  power  to  cause  the  direction  of the  management  and  policies  of the
corporation,  whether through the ownership of voting securities, by contract or
otherwise.

"Award" means any award under this Plan, including any Option,  Restricted Stock
or Stock Bonus.

"Award  Agreement"  means,  with  respect  to each  Award,  the  signed  written
agreement  between the Company and the  Participant  setting forth the terms and
conditions of the Award.

"Board" means the Board of Directors of the Company.

"Code" means the Internal Revenue Code of 1986, as amended.

"Committee" means the committee  appointed by the Board to administer this Plan,
or if no such committee is appointed, the Board.

"Company" means Worldtalk Communications Corporation, dba Worldtalk Corporation,
a  corporation  organized  under  the  laws of the  State  of  Delaware,  or any
successor corporation.

"Disability"  means a disability,  whether  temporary or  permanent,  partial or
total,  within the meaning of Section 22(e)(3) of the Code, as determined by the
Committee.

"Disinterested  Person"  means a director  who has not,  during the period  that
person is a member of the Committee and for one year prior to commencing service
as a member of the Committee, been granted or awarded equity securities pursuant
to this Plan or any other  plan of the  Company  or any  Parent,  Subsidiary  or
Affiliate of the Company,  except in accordance with the  requirements set forth
in Rule 16b-3(c)(2)(i) (and any successor  regulation thereto) as promulgated by
the SEC under  Section  16(b) of the Exchange  Act, as such rule is amended from
time to time and as interpreted by the SEC.

"Exchange Act" means the Securities Exchange Act of 1934, as amended.

"Exercise Price" means the price at which a holder of an Option may purchase the
Shares issuable upon exercise of the Option.

"Fair Market Value" means, as of any date, the value of a share of the Company's
Common Stock determined as follows:

                  (a) if such Common Stock is then quoted on the Nasdaq National
         Market,  its closing  price on the Nasdaq  National  Market on the last
         trading day prior to the date of  determination as reported in The Wall
         Street Journal;

                  (b) if such Common Stock is publicly traded and is then listed
         on a  national  securities  exchange,  its  closing  price  on the last
         trading day prior to the date of determination on the principal

                                      -11-

<PAGE>


                                                           Worldtalk Corporation
                                                      1996 Equity Incentive Plan


         national  securities  exchange  on which the Common  Stock is listed or
         admitted to trading as reported in The Wall Street Journal;

                  (c) if such Common Stock is publicly  traded but is not quoted
         on the Nasdaq  National  Market nor listed or  admitted to trading on a
         national securities exchange,  the average of the closing bid and asked
         prices on the last  trading day prior to the date of  determination  as
         reported in The Wall Street Journal; or

                  (d) if none of the foregoing is  applicable,  by the Committee
         in good faith.

"Insider"  means an officer or director of the Company or any other person whose
transactions  in the  Company's  Common  Stock are  subject to Section 16 of the
Exchange Act.

"Outside  Director" means any director who is not; (a) a current employee of the
Company or any Parent,  Subsidiary  or Affiliate  of the  Company;  (b) a former
employee of the Company or any Parent,  Subsidiary  or  Affiliate of the Company
who is receiving  compensation  for prior services  (other than benefits under a
tax-qualified  pension plan);  (c) a current or former officer of the Company or
any Parent,  Subsidiary or Affiliate of the Company;  or (d) currently receiving
compensation  for personal  services in any capacity,  other than as a director,
from  the  Company  or any  Parent,  Subsidiary  or  Affiliate  of the  Company;
provided,  however, that at such time as the term "Outside Director", as used in
Section 162(m) of the Code is defined in regulations  promulgated  under Section
162(m) of the Code,  "Outside  Director" will have the meaning set forth in such
regulations,  as amended  from time to time and as  interpreted  by the Internal
Revenue Service.

"Option" means an award of an option to purchase Shares pursuant to Section 5.

"Parent" means any corporation  (other than the Company) in an unbroken chain of
corporations ending with the Company, if at the time of the granting of an Award
under this Plan,  each of such  corporations  other than the Company  owns stock
possessing  50% or more of the total  combined  voting  power of all  classes of
stock in one of the other corporations in such chain.

"Participant" means a person who receives an Award under this Plan.

"Plan" means this Worldtalk  Corporation  1996 Equity Incentive Plan, as amended
from time to time.

"Restricted Stock Award" means an award of Shares pursuant to Section 6.

"SEC" means the Securities and Exchange Commission.

"Securities Act" means the Securities Act of 1933, as amended.

"Shares" means shares of the Company's  Common Stock reserved for issuance under
this  Plan,  as  adjusted  pursuant  to  Sections  2 and 18,  and any  successor
security.

"Stock Bonus" means an award of Shares,  or cash in lieu of Shares,  pursuant to
Section 7.

"Subsidiary" means any corporation (other than the Company) in an unbroken chain
of  corporations  beginning  with the Company if, at the time of granting of the
Award, each of the corporations  other than the last corporation in the unbroken
chain owns stock  possessing 50% or more of the total  combined  voting power of
all classes of stock in one of the other corporations in such chain.

"Termination" or "Terminated" means, for purposes of this Plan with respect to a
Participant,  that the Participant has for any reason ceased to provide services
as an employee, director,  consultant,  independent contractor or advisor to the
Company or a Parent,  Subsidiary or Affiliate of the Company, except in the case
of sick leave,  military  leave,  or any other leave of absence  approved by the
Committee, provided that such leave is for a period of not more than ninety (90)
days,  or  reinstatement  upon the  expiration  of such leave is  guaranteed  by
contract or statute. The

                                      -12-

<PAGE>


                                                           Worldtalk Corporation
                                                      1996 Equity Incentive Plan


Committee  will have sole  discretion  to determine  whether a  Participant  has
ceased to  provide  services  and the  effective  date on which the  Participant
ceased to provide services (the "Termination Date").


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



<PAGE>
                                                                      Appendix B


                      WORLDTALK COMMUNICATIONS CORPORATION
          PROXY FOR SPECIAL MEETING OF STOCKHOLDERS - November 17, 1999

    THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS OF WORLDTALK.

         The  undersigned  hereby appoints Paul Hilal and James Heisch or either
of them as proxies, each with full power of substitution,  and hereby authorizes
them to represent and to vote, as designated  below, all shares of common stock,
par value $0.01 per share,  of  Worldtalk  Communications  Corporation,  held of
record by the  undersigned  on  ____________,  1999,  at our special  meeting of
stockholders to be held at our headquarters located at 5155 Old Ironsides Drive,
Santa Clara,  California on Wednesday,  November 17, 1999, at 9:00 a.m.  Pacific
Standard Time, and at any adjournments or postponements thereof.

         THIS PROXY  WILL BE VOTED AS  DIRECTED  ON THE  REVERSE  SIDE.  WHEN NO
CHOICE IS INDICATED, THIS PROXY WILL BE VOTED FOR PROPOSAL 1 AND FOR PROPOSAL 2.
In their  discretion,  the proxy holders are  authorized to vote upon such other
business  as may  properly  come  before  the  meeting  or any  adjournments  or
postponements  thereof to the extent  authorized  by Rule  14a-4(c)  promulgated
under the Securities Exchange Act of 1934, as amended.

    WHETHER OR NOT YOU PLAN TO ATTEND THE MEETING IN PERSON, YOU ARE URGED TO
    COMPLETE, DATE, SIGN AND PROMPTLY MAIL THIS PROXY IN THE ENCLOSED RETURN
        ENVELOPE SO THAT YOUR SHARES MAY BE REPRESENTED AT THE MEETING.


                  (Continued and to be signed on reverse side)


<PAGE>


     The Board of  Directors  recommends  that you vote FOR  Proposal  1 and FOR
     Proposal 2.

1.   Approval of an  amendment  to  Worldtalk's  1996 Equity  Incentive  Plan to
     increase  the  number  of  shares of common  stock  reserved  for  issuance
     thereunder by 1,000,000 shares, and to provide for an automatic increase in
     the  shares  reserved  under the plan on July 1, 2000 and each  anniversary
     thereafter,  of 3% of the total shares  outstanding  as of the  immediately
     preceding  June 30, unless the board of directors  determines  prior to the
     increase to reduce or eliminate the increase in any particular year.

         [ ]    FOR              [ ]    AGAINST           [ ]    ABSTAIN

2.   Approval of an amendment of the certificate of incorporation increasing the
     authorized  number  of  shares  of  common  stock  to  from  25,000,000  to
     50,000,000.

         [ ]    FOR              [ ]    AGAINST           [ ]    ABSTAIN


     Dated:_______________________, 1999


     Signature(s)______________________________________


         Please  sign   exactly  as  your   name(s)   appear(s)  on  your  stock
certificate.  If  shares  of stock  stand of  record in the names of two or more
persons  or in the  name of  husband  and  wife,  whether  as joint  tenants  or
otherwise, both or all of such persons should sign the proxy. If shares of stock
are held of  record  by a  corporation,  the proxy  should  be  executed  by the
president or vice president and the secretary or assistant secretary. Executors,
administrators  or other  fiduciaries who execute the above proxy for a deceased
stockholder should give their full title. Please date the proxy.




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