Document:

<PAGE>

                                                                   Exhibit 10.15

                                VOTING AGREEMENT

                  THIS VOTING AGREEMENT (this "AGREEMENT") is entered into this
___th day of April, 2001, by and between E-Stamp Corporation, a Delaware
corporation ("E-STAMP"), and each of the undersigned stockholders (each a
"LEARN2 STOCKHOLDER" and collectively, the "LEARN2 STOCKHOLDERS") of Learn2.com,
Inc., a Delaware corporation ("LEARN2").

                  WHEREAS, the Learn2 Stockholders own of record and/or
beneficially the shares of common stock, $.01 par value, of Learn2 ("COMMON
STOCK") set forth opposite their respective names on SCHEDULE A hereto and
desire to enter into this Agreement with respect to such shares of the Common
Stock;

                  WHEREAS, E-Stamp and Learn2 have contemporaneously with the
execution of this Agreement entered into an Agreement and Plan of Merger (the
"MERGER AGREEMENT"), dated as of the date hereof, which provides, among other
things, for the merger (the "MERGER") of Learn2 with and into E-Stamp pursuant
to the terms and conditions thereof; and

                  WHEREAS, as an essential condition and inducement to E-Stamp
entering into the Merger Agreement, the parties to the Merger Agreement have
required that the Learn2 Stockholders agree, and the Learn2 Stockholders have
agreed, to enter into this Agreement.

                  NOW, THEREFORE, the parties hereto, in consideration of the
foregoing, the mutual covenants and agreements contained herein and in the
Merger Agreement and for other good and valuable consideration, the receipt and
sufficiency of which hereby are acknowledged, and intending to be legally bound
hereby, agree as follows:

         SECTION 1. DEFINITIONS

                  Capitalized terms used herein and not otherwise defined shall
have the meanings given to such terms as in the Merger Agreement.

         SECTION 2. DISPOSITION OF THE SHARES

                  (a) Each Learn2 Stockholder covenants and agrees that from the
date of this Agreement until the Termination Date (as defined in Section 16
hereof), such Learn2 Stockholder shall not sell, assign, transfer, encumber,
pledge, mortgage or otherwise encumber or dispose of or enter into any contract,
option or other agreement or understanding with respect to the direct or
indirect sale, assignment, transfer, encumbrance, pledge, mortgage or other
encumbrance or disposition of ("TRANSFER"), any shares of the Common Stock or
any other capital stock of Learn2 (including all options, warrants and other
rights to acquire shares of Common Stock or Learn2 capital stock) (together, the
"CAPITAL STOCK") or any other voting interests in Learn2 now owned or hereafter
acquired beneficially or of record by such Learn2 Stockholder without the
consent of E-Stamp, PROVIDED, HOWEVER, that the foregoing requirements shall not
prohibit any Transfer of Capital Stock to any person or entity that does not
prevent the Learn2
<PAGE>

Stockholder from performing his or her obligations under this Agreement, and
PROVIDED, FURTHER, that the foregoing requirements shall not prohibit any
Transfer of Capital Stock to any person or entity where as a precondition to
such Transfer the transferee: (i) executes a counterpart to this Agreement and a
Proxy (as defined in Section 4, and with such modifications as Parent may
reasonably request); and (ii) agrees in writing to hold such Capital Stock (or
interest in Capital Stock) subject to all of the terms and provisions of this
Agreement.

                  (b) Each Learn2 Stockholder hereby agrees and consents to the
entry of stop transfer instructions by Learn2 against the transfer of any shares
of the Capital Stock consistent with the terms of SECTION 2(A) hereof.

         SECTION 3. VOTING

                  (a) Each Learn2 Stockholder hereby agrees to appear, or cause
the holder of record on any applicable record date (the "RECORD HOLDER") to
appear, in person or by proxy, for the purpose of obtaining a quorum at any
annual or special meeting of stockholders of Learn2 and at any adjournment
thereof for the purpose of voting on the Merger Agreement and the transactions
contemplated thereby (a "MEETING").

                  (b) Each Learn2 Stockholder further agrees that at any such
Meeting such Learn2 Stockholder shall vote, or cause the Record Holder to vote,
in person or by proxy all of the shares of the Capital Stock, and any other
voting interests of Learn2 directly or indirectly owned or hereafter acquired
beneficially or of record by such Learn2 Stockholder:

                           (i) in favor of the Merger and the adoption of the
Merger Agreement in connection with any meeting of, or solicitation of consents
from, the stockholders of Learn2 at which or in connection with which the Merger
and the Merger Agreement are submitted for the consideration and vote of the
stockholders of Learn2;

                           (ii) against approval or adoption of any transaction
involving (A) the sale or transfer of all or substantially all of the Capital
Stock, whether by merger, consolidation or other business combination, (B) a
sale or transfer of all or substantially all of the assets of Learn2 or its
Subsidiaries, (C) a reorganization, recapitalization or liquidation of Learn2 or
its Subsidiaries, or (D) any amendment to Learn2's governing instruments
creating any new class of securities of Learn2 or otherwise affecting the rights
of any class of security as currently in effect; and

                           (iii) against approval or adoption of resolutions or
actions which would cause the conditions to closing of the Merger, as set forth
in the Merger Agreement, not to be satisfied.

                  (c) To the extent inconsistent with the foregoing provisions
of this Section 3, each Learn2 Stockholder revokes any and all previous proxies
with respect to shares of the Capital Stock owned beneficially and/or of record
by such Learn2 Stockholder and agrees not to

                                       2
<PAGE>

grant any proxy with respect to the Capital Stock and any other voting interests
in Learn2 owned or hereafter acquired beneficially or of record by such Learn2
Stockholder.

         SECTION 4. PROXY; FURTHER ASSURANCES

                  (a) Contemporaneously with the execution of this Agreement:
(i) each Learn2 Stockholder has delivered to E-Stamp a proxy in the form
attached to this Agreement as EXHIBIT A, which shall be irrevocable to the
fullest extent permitted by law, with respect to the shares referred to therein
(the "PROXY"); and (ii) each Learn2 Stockholder has caused to be delivered to
E-Stamp an additional proxy (in the form attached hereto as EXHIBIT A) executed
on behalf of the record owner of any outstanding shares of the Common Stock that
are owned beneficially (within the meaning of Rule 13d-3 under the Exchange
Act), but not of record, by such Stockholder, which proxy shall be irrevocable
to the fullest extent permitted by law, with respect to the shares referred to
therein.

                  (b) Each Learn2 Stockholder shall, at E-Stamp's own expense,
execute such further documents and instruments as may reasonably be required to
vest in E-Stamp the power to carry out and give effect to the provisions of this
Agreement.

         SECTION 5. REPRESENTATIONS AND WARRANTIES OF EACH LEARN2 STOCKHOLDER

                  Each Learn2 Stockholder hereby, severally and not jointly,
represents and warrants to E-Stamp as follows:

                  (a) Such Learn2 Stockholder has the legal capacity and all
other power and authority necessary to enter into this Agreement, to perform the
obligations hereunder and to consummate the transactions contemplated hereby.

                  (b) The shares of the Common Stock reflected on SCHEDULE A as
being owned by such Learn2 Stockholder are the only shares of voting Capital
Stock of Learn2 or any other voting interests in Learn2 owned beneficially or of
record by such Learn2 Stockholder, and except as set forth in SCHEDULE A, such
Learn2 Stockholder does not own any other options, warrants or rights to acquire
shares of any class of capital stock of Learn2 or any other voting interests in
Learn2. Such Learn2 Stockholder has the sole power respecting voting and
transfer of such Learn2 Stockholder's shares of the Capital Stock.

         SECTION 6. SPECIFIC PERFORMANCE

                  Each Learn2 Stockholder acknowledges and agrees that there
would be no adequate remedy at law for E-Stamp and if such Learn2 Stockholder
fails to perform any of such Learn2 Stockholder's obligations hereunder, and
accordingly agrees that E-Stamp, in addition to any other remedy to which it may
be entitled at law or in equity, shall be entitled to compel specific
performance of the obligations of such Learn2 Stockholder under this Agreement
in accordance with the terms and conditions of this Agreement in any court of
the United States or

                                       3
<PAGE>

any State thereof having jurisdiction. Each Learn2 Stockholder hereby waives any
objection to the imposition of such relief or to the posting of a bond in
connection therewith.

         SECTION 7. GOVERNING LAW

                  This Agreement shall be governed by, and construed in
accordance with, the laws of the State of Delaware, regardless of the laws that
might otherwise govern under applicable principles of conflicts of law.

         SECTION 8. PARTIES IN INTEREST

                  This Agreement shall inure to the benefit of and shall be
binding upon the parties hereto and their respective heirs, legal
representatives and permitted assigns. If any Learn2 Stockholder shall at any
time hereafter acquire ownership of, or voting power with respect to, any
additional shares of the Capital Stock or any other voting interests in Learn2
in any manner, whether by the exercise of any options or any securities or
rights convertible into or exchangeable for shares of the Capital Stock or any
other voting interests in Learn2, by operation of law or otherwise, such shares
or other interests shall be held subject to all of the terms and provisions of
this Agreement. Without limiting the foregoing, each Learn2 Stockholder
specifically agrees that the obligations of such Learn2 Stockholder hereunder
shall not be terminated by operation of law, whether by death or incapacity of
such Learn2 Stockholder or otherwise.

         SECTION 9. AMENDMENT

                  This Agreement shall not be amended, altered or modified
except by an instrument in writing duly executed and delivered on behalf of each
of the parties hereto.

         SECTION 10. SEVERABILITY

                  If any term or other provision of this Agreement is invalid,
illegal or incapable of being enforced by any rule of law, or public policy, all
other conditions and provisions of this Agreement shall nevertheless remain in
full force and effect. Upon such determination that any term or other provision
is invalid, illegal or incapable of being enforced, the parties hereto shall
negotiate in good faith to modify this Agreement so as to effect the original
intent of the parties as closely as possible to the fullest extent permitted by
applicable law in a mutually acceptable manner in order that the terms of this
Agreement remain as originally contemplated to the fullest extent possible.

                                       4
<PAGE>

         SECTION 11. WAIVER

                  Except as provided in this Agreement, no action taken pursuant
to this Agreement, including without limitation any investigation by or on
behalf of any party, shall be deemed to constitute a waiver by the party taking
such action of compliance with any representations, warranties, covenants or
agreements contained in this Agreement. The waiver by any party hereto of a
breach of any provision hereunder shall not operate or be construed as a wavier
of any prior or subsequent breach of the same or any other provision hereunder.

         SECTION 12. NOTICES

                  All notices and other communications given or made pursuant
hereto shall be in writing and shall be deemed to have been duly given or made
as of the date delivered, mailed or transmitted, and shall be effective upon
receipt, if delivered personally, mailed by registered or certified mail
(postage prepaid, return receipt requested) to the parties at the following
addresses (or at such other address for a party as shall be specified by like
changes of address) or sent by electronic transmission to the telecopier number
specified below:

                  If to a Learn2 Stockholder:

                           To such Stockholder's address
                           or telecopier number as set forth
                           on SCHEDULE A attached hereto.

                  with a copy (which shall not constitute notice) to:

                           Swidler Berlin Shereff Friedman, LLP
                           The Chrysler Building
                           405 Lexington Avenue
                           New York, NY  10174
                           Attention: Gerald Adler, Esq.
                           Telecopier No.: (212) 891-9598

                  If to E-Stamp:

                           E-Stamp Corporation
                           2051 Stierlin Court
                           Mountain View, CA  94043
                           Attention: President and Chief Executive Officer
                           Facsimile: (650) 919-7533

                                       5
<PAGE>

                  with a copy (which shall not constitute notice) to:

                           Wilson Sonsini Goodrich & Rosati, Professional
                             Corporation
                           650 Page Mill Road
                           Palo Alto, CA 94304
                           Attention: N. Anthony Jeffries, Esq.
                           Facsimile: (650) 493-6811

         SECTION 13. ENTIRE AGREEMENT; ASSIGNMENT

                  This Agreement and the Proxy (a) constitute the entire
agreement among the parties hereto pertaining to the subject matter hereof and
supersedes all prior agreements, understandings, negotiations and discussions,
whether oral or written, of the parties and (b) shall not be assigned by
operation of law or otherwise, except that this Agreement shall be binding upon
each Learn2 Stockholder and each Learn2 Stockholder's successors and assigns.

         SECTION 14. HEADINGS

                  Section headings are included solely for convenience and are
not considered to be part of this Agreement and are not intended to be an
accurate description of the contents thereof.

         SECTION 15. COUNTERPARTS

                  This Agreement may be executed and delivered in one or more
counterparts, and by the different parties hereto in separate counterparts, each
of which when executed and delivered shall be deemed to be an original but all
of which taken together shall constitute one and the same agreement.

         SECTION 16. TERMINATION

                  This Agreement and all of the parties' rights and obligations
hereunder shall terminate on the earlier to occur of (i) the date on which the
Merger Agreement is validly terminated pursuant to Section 7 thereof and (ii)
the Effective Time

         SECTION 17. OFFICERS AND DIRECTORS

                  Notwithstanding anything else herein to the contrary but
subject to the proviso set forth in this Section 17, (i) nothing set forth
herein shall be deemed to restrict or otherwise prohibit a Learn2 Stockholder
who is an officer or director of Learn2 from exercising, in such individual's
capacity as an officer or director of Learn2, what such Learn2 Stockholder
believes in good faith to be his or her fiduciary duties as an officer or
director of Learn2 or to the stockholders of Learn2, and (ii) and no action or
inaction required hereby shall require a Learn2 Stockholder who is an officer or
director of Learn2 to take any action or refrain from taking any

                                       6
<PAGE>

action, in such individual's capacity as an officer or director of Learn2 that
such Learn2 Stockholder believes in good faith is required by or would be a
breach of his or her fiduciary duties as an officer or director of Learn2 to the
stockholders of Learn2.

         SECTION 18. NO REQUIREMENT TO EXERCISE

                  Notwithstanding anything to the contrary in this Agreement, a
Learn2 Stockholder shall be under no obligation under this Agreement to exercise
any options, warrants or other rights to acquire shares of Capital Stock owned
by a Learn2 Stockholder as of the date of this Agreement or of which a Learn2
Stockholder acquires ownership during the period from the date of this Agreement
through its termination pursuant to Section 16.

             [THE REMAINDER OF THIS PAGE INTENTIONALLY LEFT BLANK.]

                                       7
<PAGE>

         IN WITNESS WHEREOF, the parties hereto have duly executed and delivered
this Voting Agreement, or have caused this Voting Agreement to be executed and
delivered on their behalf, as of the date first above written.

                                          E-STAMP CORPORATION

                                          By:
                                             ---------------------------------
                                          Name:
                                          Title:

                                          LEARN2 STOCKHOLDERS

                                          By:
                                             ---------------------------------
                                          Name:
                                          Title:

                                          By:
                                             ---------------------------------
                                          Name:
                                          Title:

                                          By:
                                             ---------------------------------
                                          Name:
                                          Title:

                  [SIGNATURES CONTINUED ON THE FOLLOWING PAGE.]
<PAGE>

                                          By:
                                             ---------------------------------
                                          Name:

                                          By:
                                             ---------------------------------
                                          Name:

                                          By:
                                             ---------------------------------
                                          Name:

                                          By:
                                             ---------------------------------
                                          Name:

                                          By:
                                             ---------------------------------
                                          Name:

                  [SIGNATURES CONTINUED ON THE FOLLOWING PAGE.]
<PAGE>

<TABLE>
<CAPTION>
                                   SCHEDULE A
---------------------------------------- -------------------------------------- --------------------------------------
 LEARN2 STOCKHOLDER NAME, ADDRESS AND        COMMON STOCK OWNED OF RECORD       COMMON STOCK OWNED BENEFICIALLY (1)

           TELEPHONE NUMBER
---------------------------------------- -------------------------------------- --------------------------------------
<S>                                      <C>                                    <C>

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

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

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

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

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

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

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

---------------------------------------- -------------------------------------- --------------------------------------
</TABLE>

----------
(1)      [All are shares of Common Stock issuable upon the exercise of Options
         as of the date of this Agreement.]
<PAGE>

                                    EXHIBIT A

                            FORM OF IRREVOCABLE PROXY

                  The undersigned stockholder of Learn2.com, Inc., a Delaware
corporation ("LEARN2"), hereby irrevocably (to the fullest extent permitted by
law) appoints and constitutes E-Stamp Corporation, a Delaware corporation
("E-STAMP") the attorney and proxy of the undersigned, with full power of
substitution and resubstitution, to the full extent of the undersigned's voting
rights with respect to (a) the outstanding shares of common stock, $.01 par
value, of Learn2 (the "LEARN2 COMMON STOCK") or any other capital stock of
Learn2 (collectively with the Learn2 Common Stock, the "CAPITAL STOCK") owned of
record by the undersigned as of the date of this proxy, which shares are
specified on the final page of this proxy, and (b) any and all other shares of
Capital Stock of Learn2 which the undersigned may acquire on or after the date
hereof. Upon the execution hereof, all prior proxies given by the undersigned
with respect to any of the Capital Stock are hereby revoked, and the undersigned
agrees that no subsequent proxy will be given with respect to any of the Capital
Stock.

                  This proxy is (i) irrevocable, (ii) coupled with an interest,
(iii) granted in connection with the execution and delivery of the Voting
Agreement dated as of the date hereof among E-Stamp and the undersigned and
certain other stockholders of Learn2 (the "VOTING AGREEMENT"), and (iv) granted
in consideration of E-Stamp entering into the Agreement and Plan of Merger dated
as of the date hereof between E-Stamp and Learn2 (the "MERGER AGREEMENT"), which
provides, among other things, for the merger (the "MERGER") of Learn2 with and
into E-Stamp pursuant to the terms and conditions thereof.

                  The proxy named above (and its successors) will, prior to the
Termination Date (as defined in the Voting Agreement), be empowered, and may
exercise this proxy, to vote the Capital Stock at any meeting of the
stockholders of Learn2, however called, or in connection with any solicitation
of written consents from stockholders of Learn2:

                           (i) in favor of the Merger and the adoption of the
Merger Agreement;

                           (ii) against approval or adoption of any transaction
involving (A) the sale or transfer of all or substantially all of the Capital
Stock, whether by merger, consolidation or other business combination, (B) a
sale or transfer of all or substantially all of the assets of Learn2 or its
Subsidiaries, (C) a reorganization, recapitalization or liquidation of Learn2 or
its Subsidiaries, or (D) any amendment to Learn2's governing instruments
creating any new class of securities of Learn2 or otherwise affecting the rights
of any class of security as currently in effect; and

                           (iii) against approval or adoption of resolutions or
actions would cause the conditions to closing of the Merger, as set forth in the
Merger Agreement, not to be satisfied.

         The undersigned may vote the Capital Stock on all other matters.
<PAGE>

                  This proxy shall be binding upon the representatives,
successors and assigns of the undersigned (including any transferee of any of
the Capital Stock).

                  If any provision of this proxy or any part of any such
provision is held under any circumstances to be invalid or unenforceable in any
jurisdiction, then (a) such provision or part thereof shall, with respect to
such circumstances and in such jurisdiction, be deemed amended to conform to
applicable laws so as to be valid and enforceable to the fullest possible
extent, (b) the invalidity or unenforceability of such provision or part thereof
under such circumstances and in such jurisdiction shall not affect the validity
or enforceability of such provision or part thereof under any other
circumstances or in any other jurisdiction, and (c) the invalidity or
unenforceability of such provision or part thereof shall not affect the validity
or enforceability of the remainder of such provision or the validity or
enforceability of any other provision of this proxy. Each provision of this
proxy is separable from every other provision of this proxy, and each part of
each provision of this proxy is separable from every other part of such
provision.

                  This proxy shall terminate upon the valid termination of the
Voting Agreement.

Date: April __, 2001

                                        -----------------------------------
                                        Stockholder's Name

                                        Number of shares of Learn2 Common Stock
                                        owned of record as of the date of this
                                        proxy:

                                        -----------------------------------<PAGE>

                                                                   Exhibit 10.16

                      REDEMPTION AND TERMINATION AGREEMENT

            Redemption and Termination Agreement (this "AGREEMENT"), dated as of
April 19, 2001, by and among Learn2.com, Inc., a Delaware corporation with
headquarters located at 1311 Mamaroneck Avenue, White Plains, New York 10605
(the "COMPANY"), E-Stamp Corporation, a Delaware corporation with headquarters
located at 2051 Stierlin Court, Mountain View, California 94043 ("E-STAMP"), and
RGC International Investors, LDC ("RGC").

            WHEREAS:

      A. RGC is the holder of (i) that certain Convertible Debenture, dated
March 10, 2000, in the aggregate principal amount of $10,000,000 (the
"DEBENTURE"), which is convertible into shares of common stock, par value $0.01
per share, of the Company ("COMPANY COMMON STOCK"), subject to the terms and
conditions set forth in the Debenture and (ii) a certain Stock Purchase Warrant
issued on March 10, 2000, which is exercisable for 337,268 shares of Company
Common Stock (the "2000 WARRANT");

      B. RGC and the Company are parties to that certain (i) Securities Purchase
Agreement, dated as of March 10, 2000 (the "PURCHASE AGREEMENT"), and (ii)
Registration Rights Agreement, dated as of March 10, 2000 (the "REGISTRATION
RIGHTS AGREEMENT" and, collectively with the Debenture, the 2000 Warrant and the
Purchase Agreement, the "TRANSACTION DOCUMENTS");

      C. Concurrently with the execution of this Agreement, the Company is
entering into an Agreement and Plan of Merger (the "MERGER AGREEMENT") dated
April 19, 2001 with E-Stamp in the form attached hereto as EXHIBIT A;

      D. The Merger Agreement contemplates, among other things, the merger (the
"MERGER") of the Company into E-Stamp in exchange for shares of common stock,
par value $0.001 per share, of E-Stamp ("E-STAMP COMMON STOCK") as well as the
investment by E-Stamp, on or prior to April 23, 2001, of $2,000,000 in exchange
for a note issued by the Company, in the form attached hereto as EXHIBIT B (the
"NOTE"), which note is convertible into a newly designated series of convertible
preferred stock of the Company, to be designated as Series E Preferred Stock,
par value $0.01 per share, pursuant to a Certificate of Designations,
Preferences and Rights in the form attached hereto as EXHIBIT C (the "SERIES E
PREFERRED STOCK") (the "PRIVATE PLACEMENT");

      E. The Merger Agreement, the Note and the Series E Preferred Stock provide
that, effective upon the consummation of the Merger, the Note and/or the Series
E Preferred Stock and/or any shares of Company Common Stock issued and/or
issuable upon conversion thereof shall be cancelled without any consideration;

      F. The Note shall be unsecured and shall rank PARI PASSU and equal in
right of payment with the indebtedness of the Company evidenced by the
Debenture; and

                                       1
<PAGE>

      G. In order to facilitate the transactions contemplated by the Merger
Agreement, the Company, E-Stamp and RGC desire, upon the terms and conditions
set forth herein, to provide for (i) the modification of the Transaction
Documents, as set forth more fully in this Agreement, and (ii) the full
satisfaction of the Company's obligations under the Transaction Documents
(including the redemption of the Debenture) upon the consummation of the Merger,
as set forth more fully in this Agreement.

            NOW, THEREFORE, in consideration of the foregoing and the mutual
promises contained herein, the Company, E-Stamp and RGC hereby agree as follows:

            1. AGREEMENTS BETWEEN THE COMPANY, E-STAMP AND RGC.

                  (a) REDEMPTION OF THE DEBENTURE; TERMINATION OF TRANSACTION
DOCUMENTS. Subject to and immediately prior to the consummation of the Merger
and subject to the satisfaction or waiver of the conditions set forth in
Sections 5 and 6 hereof, the Company shall redeem the Debenture (including all
outstanding principal and interest thereunder) in exchange for, and RGC shall
surrender the Debenture (including all rights to outstanding principal and
interest thereunder) in exchange for, (i) the payment by E-Stamp to RGC of
$1,000,000 by wire transfer to an account designated by RGC and (ii) the
issuance by the Company to RGC of a number of shares of Company Common Stock
(the "COMPANY SHARES") which, upon the consummation of the Merger, will be
converted into the right to receive shares of E-Stamp Common Stock representing
16.67% of the aggregate issued and outstanding E-Stamp Common Stock immediately
following the consummation of the Merger (the "E-STAMP SHARES") (for purposes of
such calculation, treating as issued and outstanding immediately following the
consummation of the Merger all shares of E-Stamp Common Stock issuable upon the
exercise of outstanding options and warrants (including options and warrants to
purchase shares of E-Stamp Common Stock which were issued pursuant to the terms
of the Merger Agreement in exchange for options and warrants to purchase shares
of Company Common Stock) which were included in the definition of "E-Stamp Total
Outstanding Shares" and/or "Learn2 Total Outstanding Shares" (as each such term
is defined in the Merger Agreement) immediately prior to the consummation of the
Merger). The issuance of the E-Stamp Shares to RGC shall be registered under the
Securities Act of 1933, as amended (the "SECURITIES ACT"), pursuant to that
certain Registration Statement on Form S-4 to be filed by E-Stamp pursuant to
the Merger Agreement. The E-Stamp Shares shall be freely tradeable by RGC
without restriction under the Securities Act (except as provided by Rule 145
promulgated under the Securities Act and by this Agreement). E-Stamp agrees to
register the resale by RGC of the E-Stamp Shares under the Securities Act in
accordance with the terms and provisions set forth in that certain Registration
Rights Agreement of even date herewith by and between E-Stamp and RGC in the
form attached hereto as EXHIBIT D (the "E-STAMP REGISTRATION RIGHTS AGREEMENT").
Subject to the satisfaction or waiver of the conditions set forth in Sections 5
and 6 hereof, the closing of the redemption of the Debenture (the "CLOSING")
shall take place concurrent with the closing of the Merger at the offices of
Swidler Berlin Shereff Friedman LLP, 405 Lexington Avenue, New York, New York
10174 or at such other place as is agreed to by the parties hereto. Upon receipt
by RGC of such $1,000,000 and the Company Shares and concurrent with the Merger,
the Debenture shall be redeemed, the Transaction Documents shall

                                       2
<PAGE>

terminate and RGC shall have no further rights or remedies against the Company
and E-Stamp under the Transaction Documents.

                  (b) RETENTION OF RIGHTS. Subject to the terms and conditions
of the Waiver attached hereto as EXHIBIT E, RGC shall retain all of its rights
and remedies set forth in the Debenture and the Transaction Documents until such
time as the Debenture is redeemed pursuant to the terms and conditions of this
Agreement.

                  (c) TRADING LIMITATIONS. In the event that the Merger is
consummated and subject to the conditions set forth in the last sentence of this
Section 1(c), RGC agrees that (i) it will conduct any Sales (as defined below)
of E-Stamp Common Stock in compliance with all relevant securities laws and
regulations and will not create any daily low trading prices in the E-Stamp
Common Stock, (ii) until one hundred eighty (180) days from the closing of the
Merger, it will not engage in any Sales of E-Stamp Common Stock, and (iii)
during the period beginning one hundred and eighty (180) days from the closing
of the Merger and ending on the one (1) year anniversary of the closing of the
Merger, its Sales of E-Stamp Common Stock in any calendar month will not exceed
5% of the lesser of (a) the total trading volume of the E-Stamp Common Stock for
the previous calendar month and (b) the aggregate number of shares of E-Stamp
Common Stock beneficially owned by RGC immediately following the consummation of
the Merger; PROVIDED, HOWEVER, that the foregoing trading limitations shall not
prevent RGC from selling up to 5% of the aggregate trading volume in any Trading
Day (as defined in the Debenture); and, PROVIDED FURTHER, HOWEVER, that the
foregoing trading limitations shall not apply to block sales of at least 25,000
shares of E-Stamp Common Stock to a single purchaser (who is not an "affiliate"
(as such term is defined in the Securities Act) of RGC) at a price greater than
the immediately preceding sale price of E-Stamp Common Stock on the principal
securities exchange or trading market where such security is listed or traded as
reported by Bloomberg Financial Markets, PROVIDED that the aggregate block sales
effected by RGC in any calendar month will not exceed 15% of the total trading
volume of the E-Stamp Common Stock for the previous calendar month. The
restrictions set forth in clauses (i), (ii) and (iii) above shall only apply to
RGC if (x) each of the officers and directors of the Company and E-Stamp who are
serving in such capacity as of the date hereof and (y) each of the holders of
five percent (5%) or more of the outstanding shares of E-Stamp Common Stock
immediately following the consummation of the Merger agree to the same
restrictions with respect to any Sales of E-Stamp Common Stock beneficially
owned by them; PROVIDED, HOWEVER, that (1) in the case of any such officer,
director or five percent (5%) holder, the limitation referred to in subpart (b)
of clause (iii) above shall be deemed to refer to the aggregate number of shares
of E-Stamp Common Stock beneficially owned by such officer, director or five
percent (5%) holder immediately following the consummation of the Merger, (2)
the exceptions set forth in the provisos to clause (iii) above shall not apply
to Sales by any such officer or director and (3) notwithstanding the limitation
referred to in subpart (b) of clause (iii) above (but subject to the limitation
referred to in subpart (a) of clause (iii) above), each such officer and
director shall be permitted to sell up to 5,000 shares of E-Stamp Common Stock
(as adjusted for stock splits, stock dividends and similar events) in any
calendar month during the period specified in clause (iii) above; and, PROVIDED
FURTHER, that such restrictions shall expire with respect to any officer or
director (other than Stephen Gott and Donald Schupak) whose employment with or
service to the Company or E-Stamp is subsequently terminated, so long as such
officer or director is not (or would not be following consummation of the
Merger), at the time of such termination, a holder

                                       3
<PAGE>

of five percent (5%) or more of the outstanding shares of E-Stamp Common Stock.
"SALE", for purposes of this Section 1(c), shall mean the sale, assignment,
transfer, or other disposition of, or the entering into of any contract, option
or other agreement or understanding (including, without limitation, any short
sale (whether or not against the box) or any purchase, sale or grant of any
right (including, without limitation, any put or call option) with respect to
any security (other than a broad-based market basket or index) that includes,
relates to or derives any significant part of its value from E-Stamp Common
Stock) with respect to the direct or indirect sale, assignment, transfer or
other disposition of shares of E-Stamp Common Stock; PROVIDED, HOWEVER, that the
term "SALES" shall not include the pledge by RGC of the E-Stamp Shares as
collateral in connection with a BONA FIDE margin account or other lending
arrangement.

                  (d) NOTE. RGC acknowledges and consents to the issuance of the
Note to E-Stamp, the incurrence of the debt covered by the Note, and all related
transactions (including without limitation the grant of the option to E-Stamp to
purchase the Company's property located at One American Way, Pryor, Oklahoma
74361). RGC further agrees that the Note shall rank PARI PASSU and equal in
right of payment with the indebtedness of the Company evidenced by the
Debenture.

            2. RGC'S REPRESENTATIONS AND WARRANTIES. RGC represents and warrants
to the Company and E-Stamp that:

                  (a) ORGANIZATION AND QUALIFICATION. RGC is a limited duration
company duly organized, validly existing and in good standing under the laws of
the Cayman Islands, with full power and authority to own, lease, use and operate
its properties and to carry on its business as and where now owned, leased,
used, operated and conducted.

                  (b) AUTHORIZATION; ENFORCEMENT. (i) RGC has all requisite
power and authority to enter into and perform this Agreement and the E-Stamp
Registration Rights Agreement and to consummate the transactions contemplated
hereby and thereby, (ii) the execution and delivery of this Agreement and the
E-Stamp Registration Rights Agreement by RGC and the consummation by RGC of the
transactions contemplated hereby have been duly authorized and no further
consent or authorization is required, (iii) this Agreement and the E-Stamp
Registration Rights Agreement have been duly executed and delivered on behalf of
RGC, and (iv) this Agreement and the E-Stamp Registration Rights Agreement
constitute legal, valid and binding agreements of RGC enforceable against RGC in
accordance with their respective terms.

                  (c) NO CONFLICTS. The execution, delivery and performance of
this Agreement and the E-Stamp Registration Rights Agreement by RGC and the
consummation by RGC of the transactions contemplated hereby and thereby will not
(i) conflict with or result in a violation of any provision of the charter
documents of RGC, or (ii) violate or conflict with, or result in a breach of any
provision of, or constitute a default (or an event which with notice or lapse of
time or both would become a default) under, or give to others any rights of
termination, amendment, acceleration or cancellation of, any agreement,
indenture, patent, patent license or instrument to which RGC or any of its
affiliates is a party (except for such conflicts, defaults, terminations,
amendments, accelerations and cancellations as would not, individually or in the
aggregate, adversely affect or delay RGC's ability to consummate any of the
transactions

                                       4
<PAGE>

contemplated by this Agreement or the E-Stamp Registration Rights Agreement). To
the best of RGC's knowledge, RGC is not required to obtain any consent,
authorization or order of, or make any filing or registration with, any court,
governmental agency, regulatory agency, self regulatory organization or stock
market or any third party in order for it to execute, deliver or perform any of
its obligations under this Agreement and the E-Stamp Registration Rights
Agreement in accordance with the terms hereof and thereof.

                  (d) NO OTHER AGREEMENTS. Other than the Transaction Documents,
the E-Stamp Registration Rights Agreement and this Agreement, there are no
mortgages, indentures, leases, contracts or other agreements or instruments,
permits, concessions, franchises or licenses between RGC or its affiliates, on
the one hand, and the Company or its affiliates, on the other hand.

            3. REPRESENTATIONS AND WARRANTIES OF THE COMPANY AND E-STAMP. Each
of the Company and E-Stamp represent and warrant to RGC (with respect to itself
and not with respect to the other) that:

                  (a) ORGANIZATION AND QUALIFICATION. Each of the Company and
E-Stamp is a corporation duly organized, validly existing and in good standing
under the laws of the jurisdiction in which it is incorporated, with full power
and authority (corporate and other) to own, lease, use and operate its
properties and to carry on its business as and where now owned, leased, used,
operated and conducted.

                  (b) AUTHORIZATION; ENFORCEMENT. (i) Each of the Company and
E-Stamp has all requisite corporate power and authority to enter into and
perform this Agreement and the E-Stamp Registration Rights Agreement and to
consummate the transactions contemplated hereby and thereby, (ii) the execution
and delivery of this Agreement and the E-Stamp Registration Rights Agreement by
each of the Company and E-Stamp and the consummation by each of them of the
transactions contemplated hereby and thereby (including, without limitation, the
issuance by E-Stamp of the E-Stamp Shares to RGC pursuant to the Merger
Agreement) have been duly authorized by their respective Boards of Directors,
and no further consent or authorization of the Company or E-Stamp or their
respective Boards of Directors or stockholders is required (subject only to the
approval of the issuance of the Company Shares to RGC by the Company's
stockholders and approval of the Merger by the stockholders of the Company and
E-Stamp), (iii) this Agreement and the E-Stamp Registration Rights Agreement
have been duly executed and delivered by the Company and E-Stamp, and (iv) this
Agreement and the E-Stamp Registration Rights Agreement constitute legal, valid
and binding obligations of each of the Company and E-Stamp, enforceable against
each of them in accordance with their respective terms.

                  (c) ISSUANCE OF COMPANY SHARES. The Company Shares to be
issued to RGC are duly authorized and reserved for issuance and, upon issuance
in accordance with the terms hereof, will be validly issued, fully paid and
non-assessable, and free from all taxes, liens, claims and encumbrances and
shall not be subject to preemptive rights or other similar rights of

                                       5
<PAGE>

stockholders of the Company or E-Stamp and will not impose personal liability
upon the holder thereof.

                  (d) NO CONFLICTS. The execution, delivery and performance of
this Agreement and the E-Stamp Registration Rights Agreement by the Company and
E-Stamp and the consummation by the Company and E-Stamp of the transactions
contemplated hereby and thereby will not (i) conflict with or result in a
violation of any provision of the certificate of incorporation or by-laws of the
Company or E-Stamp or (ii) violate or conflict with, or result in a breach of
any provision of, or constitute a default (or an event which with notice or
lapse of time or both would become a default) under, or give to others any
rights of termination, amendment, acceleration or cancellation of, any
agreement, indenture, patent, patent license or instrument to which the Company
or E-Stamp or any of their respective subsidiaries is a party, or (iii) result
in a violation of any law, rule, regulation, order, judgment or decree
(including federal and state securities laws and regulations and regulations of
any self-regulatory organizations to which the Company or E-Stamp or either of
their securities are subject) applicable to the Company or E-Stamp or any of
their respective subsidiaries or by which any property or asset of the Company
or E-Stamp or any of their respective subsidiaries is bound or affected (except,
in the case of clauses (i), (ii) and (iii) above, for such conflicts, defaults,
terminations, amendments, accelerations, cancellations and violations as would
not, individually or in the aggregate, have a material adverse effect on the
Company or E-Stamp). Neither the Company nor E-Stamp is required to obtain any
consent, authorization or order of, or make any filing or registration with, any
court, governmental agency, regulatory agency, self regulatory organization or
stock market or any third party in order for it to execute, deliver or perform
any of its obligations under this Agreement or the E-Stamp Registration Rights
Agreement in accordance with the terms hereof or thereof (other than
notification filings, if any, with the Nasdaq National Market or such national
securities exchange, automated quotation system or bulletin board, and the
requirement to file a Form S-4 containing a proxy statement/prospectus with the
Securities and Exchange Commission).

                  (e) NO INVESTMENT COMPANY. E-Stamp is not, and upon the
consummation of the Merger will not be, an "investment company" required to be
registered under the Investment Company Act of 1940 (an "INVESTMENT Company").
E-Stamp is not controlled by an Investment Company.

                  (f) CAPITALIZATION. As of the date hereof, the authorized
capital stock of the Company consists of (i) 100,000,000 shares of Company
Common Stock, of which 52,881,618 shares are issued and outstanding, 12,021,272
shares are reserved for issuance pursuant to the Company's stock option plans,
2,825,126 shares are reserved for issuance pursuant to securities (other than
the Debenture and the 2000 Warrant) exercisable for, or convertible into or
exchangeable for shares of Company Common Stock; and (ii) 100,000 shares of
preferred stock, 15,000 shares of which are designated as Series B Convertible
Preferred Stock, none of which are issued and outstanding, and 35,000 shares of
which are designated as Series D Preferred Stock, none of which are issued and
outstanding. All of such outstanding shares of capital stock are, or upon
issuance will be, duly authorized, validly issued, fully paid and nonassessable.
No shares of capital stock of the Company are subject to preemptive rights or
any other similar rights of the stockholders of the Company or any liens or
encumbrances imposed through the actions or failure to act of the Company.
Except as disclosed in SCHEDULE

                                       6
<PAGE>

3(f), as of the date of this Agreement, (i) there are no outstanding options,
warrants, scrip, rights to subscribe for, puts, calls, rights of first refusal,
agreements, understandings, claims or other commitments or rights of any
character whatsoever relating to, or securities or rights convertible into or
exchangeable for any shares of capital stock of the Company or any of its
subsidiaries, or arrangements by which the Company or any of its subsidiaries is
or may become bound to issue additional shares of capital stock of the Company
or any of its subsidiaries, (ii) there are no agreements or arrangements under
which the Company or any of its subsidiaries is obligated to register the sale
of any of its or their securities under the Securities Act (except the
Registration Rights Agreement) and (iii) there are no anti-dilution or price
adjustment provisions contained in any security issued by the Company (or in any
agreement providing rights to security holders) that will be triggered by the
redemption of the Debenture. The Company has furnished to RGC true and correct
copies of the Company's Certificate of Incorporation as in effect on the date
hereof ("CERTIFICATE OF INCORPORATION"), the Company's By-laws, as in effect on
the date hereof (the "BY-LAWS"), and the terms of all securities convertible
into or exercisable for Company Common Stock and the material rights of the
holders thereof in respect thereto (including any planned changes to the
exercise price or vesting schedule of any outstanding options or warrants). The
Company shall provide RGC with a written update of this representation signed by
the Company's President and Chief Executive or Chief Financial Officer on behalf
of the Company as of the closing date of the Merger.

            4. COVENANTS.

                  (a) LISTING. E-Stamp shall promptly secure the listing of the
E-Stamp Shares upon each national securities exchange or automated quotation
system (including the Nasdaq SmallCap Market), if any, upon which shares of
E-Stamp Common Stock are then listed (subject to official notice of issuance)
and, so long as RGC owns the E-Stamp Shares, shall maintain, so long as any
other shares of E-Stamp Common Stock shall be so listed, such listing of the
E-Stamp Shares. E-Stamp will obtain and, for two (2) years following the
consummation of the Merger, maintain the listing and trading of the E-Stamp
Common Stock (or the capital stock of any successor entity) on the Nasdaq
National Market (the "NNM"), the Nasdaq SmallCap Market, the New York Stock
Exchange, the American Stock Exchange or the Over-the-Counter Bulletin Board and
will comply in all respects with E-Stamp's reporting, filing and other
obligations under the bylaws or rules of the National Association of Securities
Dealers and such exchanges, as applicable. Following the consummation of the
Merger, at RGC's request, E-Stamp shall promptly provide to RGC copies of any
notices it receives from the NNM and any other exchanges or quotation systems on
which the E-Stamp Common Stock is then listed regarding the continued
eligibility of the E-Stamp Common Stock for listing on such exchanges and
quotation systems.

                  (b) TRANSFER AGENT INSTRUCTIONS. E-Stamp shall issue
irrevocable instructions to its transfer agent to issue unlegended certificates,
registered in the name of RGC or its nominee, for the E-Stamp Shares in such
amounts as may be specified from time to time by RGC (the "IRREVOCABLE TRANSFER
AGENT INSTRUCTIONS"), so long as (i) the E-Stamp Shares are registered for
resale by RGC pursuant to an effective registration statement under the
Securities Act of 1933, as amended, or otherwise may be sold under Rule 144
promulgated under the Securities Act of 1933, as amended ("RULE 144"), without
any restriction as to the number of securities as of a particular date that can
then be immediately sold, (ii) RGC provides E-Stamp

                                       7
<PAGE>

with an opinion of counsel, in form, substance and scope customary for opinions
of counsel in comparable transactions, to the effect that a public sale or
transfer of such E-Stamp Shares may be made without registration under the
Securities Act of 1933, as amended, and such sale or transfer is effected or
(iii) RGC has provided E-Stamp with reasonable assurances that such E-Stamp
Shares can be sold pursuant to Rule 144 or Rule 145, as applicable. E-Stamp
acknowledges that a breach by it of its obligations hereunder will cause
irreparable harm to RGC by obliterating the intent and purpose of the
transaction contemplated hereby. Accordingly, E-Stamp acknowledges that the
remedy at law for a breach of its obligations under this Section 4(b) will be
inadequate and agrees, in the event of a breach or threatened breach by E-Stamp
of the provisions of this Section 4(b), that RGC shall be entitled, in addition
to all other available remedies at law or in equity, to an injunction or
injunctions to prevent, cure or restrain any such breach and to enforce
specifically the terms and provisions of this Section 4(b), without the
necessity of showing economic loss and without any bond or other security being
required.

                  (c) APPROVAL OF MERGER; STOCKHOLDER APPROVALS. Subject to the
terms of the Merger Agreement, the Company and E-Stamp shall use their
respective best efforts to consummate the Merger and obtain the stockholder
approvals referred to in Section 3(b) hereof.

                  (d) TRANSFER OF DEBENTURE OR 2000 WARRANT. RGC agrees that,
prior to the consummation of the Merger, it will not transfer the Debenture or
the 2000 Warrant unless the transferee agrees to be bound by the provisions of
this Agreement.

                  (e) TRANSFER OR RESALE. RGC has been advised that RGC may be
deemed to be an "affiliate" of the Company at the effective time of the Merger,
as the term "affiliate" is used for purposes of paragraphs (c) and (d) of Rule
145 promulgated under the Securities Act, although nothing contained herein
shall be construed as an admission by RGC that RGC is in fact an "affiliate" of
the Company. RGC accordingly agrees that, in addition to the restrictions set
forth in Section 1(c) of this Agreement, RGC will not transfer any of the
E-Stamp Shares unless (a) such transfer is made in conformity with the
requirements of Rule 145(d) promulgated under the Securities Act, (b) such
E-Stamp Shares are sold pursuant to an effective registration statement under
the Securities Act, (c) RGC delivers to E-Stamp a written opinion of counsel,
reasonably acceptable to E-Stamp in form and substance, that such sale, transfer
or other disposition is otherwise exempt from registration under the Securities
Act, or (d) the E-Stamp Shares are sold pursuant to Rule 144. Notwithstanding
the foregoing or anything else contained herein to the contrary, the E-Stamp
Shares may be pledged as collateral in connection with a BONA FIDE margin
account or other lending arrangement. RGC agrees to sell the E-Stamp Shares,
including those represented by a certificate(s) from which the legend has been
removed pursuant to Section 4(b) hereof, in compliance with applicable
prospectus delivery requirements, if any.

                  (f) REVERSE STOCK SPLIT. RGC agrees that it will vote in favor
of any proposal approved by a majority of the members of the board of directors
of E-Stamp seeking stockholder approval of a reverse stock split at any annual
or special meeting of the stockholders of E-Stamp held for such purpose prior to
the one hundred eightieth (180th) day following consummation of the Merger.

                                       8
<PAGE>

                  (g) SIDE LETTER. The parties agree that if, pursuant to the
terms of that certain letter agreement, dated of even date herewith, between the
Company and E-Stamp, the Merger is restructured to be an acquisition by the
Company of E-Stamp, the parties shall amend this Agreement and the E-Stamp
Registration Rights Agreement (provided that the economic and other benefits to
be afforded RGC pursuant to this Agreement and the E-Stamp Registration Rights
Agreement are preserved in their entirety in such amended agreements) and take
such other actions as are necessary to reflect the Company as the surviving
company in the Merger and to consummate the transactions contemplated by this
Agreement and the E-Stamp Registration Rights Agreement.

            5. CONDITIONS TO THE COMPANY'S AND E-STAMP'S OBLIGATIONS.

                  The obligations of the Company and E-Stamp hereunder to pay to
RGC $1,000,000 and issue the Company Shares in redemption of the Debenture at
the Closing is subject to the satisfaction, at or before the date of the
Closing, of each of the following conditions thereto, provided that these
conditions are for the Company's and E-Stamp's sole benefit and may be waived in
writing by the Company and E-Stamp (acting collectively) at any time in their
sole discretion:

                  (a) RGC shall have executed this Agreement and the E-Stamp
Registration Rights Agreement, and delivered the same to the Company.

                  (b) RGC shall have delivered the Debenture for redemption in
accordance with Section 1(a) above.

                  (c) The representations and warranties of RGC shall be true
and correct in all material respects as of the date when made and as of the date
of the Closing as though made at that time (except for representations and
warranties that speak as of a specific date, which representations and
warranties shall be true and correct as of such date), and RGC shall have
performed, satisfied and complied in all material respects with the covenants,
agreements and conditions required by this Agreement to be performed, satisfied
or complied with by RGC at or prior to the date of the Closing.

                  (d) No litigation, statute, rule, regulation, executive order,
decree, ruling or injunction shall have been enacted, entered, promulgated or
endorsed by or in any court or governmental authority of competent jurisdiction
or any self-regulatory organization having authority over the matters
contemplated hereby which prohibits the consummation of any of the transactions
contemplated by this Agreement.

                  (e) The Company and E-Stamp shall have obtained the
stockholder approvals referred to in Section 3(b) of this Agreement and the
Merger shall be consummated concurrent with the Closing hereunder.

            6. CONDITIONS TO RGC'S OBLIGATIONS.

            The obligations of RGC hereunder to deliver the Debenture at the
Closing is subject to the satisfaction, at or before the date of the Closing, of
each of the following

                                       9
<PAGE>

conditions, provided that these conditions are for RGC's sole benefit and may be
waived in writing by RGC at any time in its sole discretion:

                  (a) The Company and E-Stamp shall have executed this Agreement
and the E-Stamp Registration Rights Agreement, and delivered the same to RGC.

                  (b) E-Stamp shall have paid to RGC $1,000,000 and the Company
shall have delivered to RGC the Company Shares.

                  (c) The Irrevocable Transfer Agent Instructions, in form and
substance reasonably satisfactory to RGC and consistent with the provisions of
Section 4(a) hereof, shall have been delivered to and acknowledged in writing by
E-Stamp's Transfer Agent.

                  (d) The representations and warranties of the Company and
E-Stamp shall be true and correct in all material respects as of the date when
made and as of the date of Closing as though made at such time (except for
representations and warranties that speak as of a specific date, which
representations and warranties shall be true and correct as of such date) and
the Company and E-Stamp shall have performed, satisfied and complied in all
material respects with the covenants, agreements and conditions required by this
Agreement to be performed, satisfied or complied with by the Company and E-Stamp
at or prior to the date of the Closing. RGC shall have received a certificate or
certificates, executed by the chief executive officer or chief financial officer
of each of the Company and E-Stamp, dated as of the date of the Closing, to the
foregoing effect and as to such other matters, including, but not limited to,
with respect to the Company's and E-Stamp's certificate of incorporation, bylaws
and Board of Directors' resolutions relating to the transactions contemplated
hereby as would customarily be contained in an officer's certificate and
secretary's certificate in a comparable transaction.

                  (e) No litigation, statute, rule, regulation, executive order,
decree, ruling or injunction shall have been enacted, entered, promulgated or
endorsed by or in any court or governmental authority of competent jurisdiction
or any self-regulatory organization having authority over the matters
contemplated hereby which prohibits the consummation of any of the transactions
contemplated by this Agreement.

                  (f) The E-Stamp Common Stock shall be listed for trading on
the NNM, the Nasdaq SmallCap Market, the New York Stock Exchange, the American
Stock Exchange or the Over-the-Counter Bulletin Board, trading in the E-Stamp
Common Stock shall not have been suspended by the SEC or such trading market and
the E-Stamp Shares shall have been authorized for quotation on such trading
market.

                  (g) The Company and E-Stamp shall have obtained the
stockholder approvals referred to in Section 3(b) of this Agreement and the
Merger shall be consummated concurrent with the Closing hereunder.

                  (h) RGC shall have received an officer's certificate described
in Section 3(f) above, dated as of the date of the Closing.

                                       10
<PAGE>

            7. MISCELLANEOUS.

                  (a) TERMINATION. This Agreement will terminate on the earlier
of (a) the date of termination of the Merger Agreement and (b) September 30,
2001. (b) GOVERNING LAW. This Agreement shall be governed by and construed in
accordance with the laws of the State of Delaware applicable to agreements made
and to be performed in the State of Delaware (without regard to principles of
conflict of laws). The parties irrevocably consent to the exclusive jurisdiction
of the United States federal courts and the state courts located in Delaware
with respect to any suit or proceeding based on or arising under this Agreement,
the agreements entered into in connection herewith or the transactions
contemplated hereby or thereby and irrevocably agree that all claims in respect
of such suit or proceeding may be determined in such courts. The parties
irrevocably waive the defense of an inconvenient forum to the maintenance of
such suit or proceeding. The parties further agree that service of process upon
a party mailed by first class mail shall be deemed in every respect effective
service of process upon the party in any such suit or proceeding. Nothing herein
shall affect any party's right to serve process in any other manner permitted by
law. The parties agree that a final non-appealable judgment in any such suit or
proceeding shall be conclusive and may be enforced in other jurisdictions by
suit on such judgment or in any other lawful manner.

                  (c) COUNTERPARTS; SIGNATURES BY FACSIMILE. This Agreement may
be executed in one or more counterparts, all of which shall be considered one
and the same agreement and shall become effective when counterparts have been
signed by each party and delivered to the other party. This Agreement, once
executed by a party, may be delivered to the other party hereto by facsimile
transmission of a copy of this Agreement bearing the signature of the party so
delivering this Agreement.

                  d) HEADINGS. The headings of this Agreement are for
convenience of reference and shall not form part of, or affect the
interpretation of, this Agreement.

                  (e) SEVERABILITY. If any provision of this Agreement shall be
invalid or unenforceable in any jurisdiction, such invalidity or
unenforceability shall not affect the validity or enforceability of the
remainder of this Agreement or the validity or enforceability of this Agreement
in any other jurisdiction.

                  (f) ENTIRE AGREEMENT; AMENDMENTS. This Agreement, the E-Stamp
Registration Rights Agreement and the Waiver contain the entire understanding of
the parties with respect to the matters covered herein and therein and, except
as specifically set forth herein or therein, such documents supercede all prior
agreements among the parties with respect to the matters covered herein or
therein. Except as specifically set forth in this Agreement, the E-Stamp
Registration Rights Agreement and the Waiver, none of the Company, E-Stamp or
RGC makes any representation, warranty, covenant or undertaking with respect to
such matters. No provision of this Agreement may be waived or amended other than
by an instrument in writing signed by the party to be charged with enforcement.

                                       11
<PAGE>

                  (g) NOTICES. Any notices required or permitted to be given
under the terms of this Agreement shall be sent by certified or registered mail
(return receipt requested) or delivered personally or by courier (including a
recognized overnight delivery service) or by facsimile and shall be effective
five days after being placed in the mail, if mailed by regular United States
mail, or upon receipt, if delivered personally or by courier (including a
recognized overnight delivery service) or by facsimile, in each case addressed
to a party. The addresses for such communications shall be:

                  If to the Company:

                           Learn2.com, Inc.
                           1311 Mamaroneck Avenue
                           White Plains, New York 10605
                           Attention: President and Chief Executive Officer
                           Facsimile: (914) 682-4440

                  With copy to:

                           Swidler Berlin Shereff Friedman, LLP
                           405 Lexington Avenue
                           New York, New York 10174
                           Attention: Gerald Adler, Esq.
                           Facsimile: (212) 891-9598

                  If to E-Stamp:

                           E-Stamp Corporation
                           2051 Stierlin Court
                           Mountain View, California 94043
                           Attention: President and Chief Executive Officer
                           Facsimile: (650) 919-7886

                  With a copy to:

                           Wilson Sonsini Goodrich & Rosati
                           650 Page Mill Road
                           Palo Alto, California 94304-1050
                           Attention: N. Anthony Jeffries, Esq.
                           Facsimile: (650) 493-6811

                  If to RGC: To the address set forth immediately below RGC's
                  name on the signature pages hereto.

                                       12
<PAGE>

                  With copy to:

                           Ballard Spahr Andrews & Ingersoll, LLP
                           1735 Market Street, 51st Floor
                           Philadelphia, Pennsylvania  19103-7599
                           Attention: Gerald J. Guarcini, Esq.
                           Facsimile: (215) 864-8999

Each party shall provide notice to the other parties of any change in address.

                  (h) SUCCESSORS AND ASSIGNS. This Agreement shall be binding
upon and inure to the benefit of the parties and their successors and permitted
assigns. None of the Company, E-Stamp nor RGC shall assign this Agreement or any
rights or obligations hereunder without the prior written consent of the other.

                  (i) THIRD PARTY BENEFICIARIES. This Agreement is intended for
the benefit of the parties hereto and their respective permitted successors and
assigns, and is not for the benefit of, nor may any provision hereof be enforced
by, any other person.

                  (j) SURVIVAL. The representations and warranties of the
parties and the agreements and covenants set forth herein shall survive the
Closing hereunder notwithstanding any due diligence investigation conducted by
or on behalf of any party.

                  (k) PUBLICITY. The Company, E-Stamp and RGC shall have the
right to review a reasonable period of time before issuance of any press
releases, filings with the SEC, NASD or any stock exchange or interdealer
quotation system, or any other public statements with respect to the
transactions contemplated hereby; PROVIDED, HOWEVER, that the Company or E-Stamp
shall be entitled, without the prior approval of RGC to make any press release
or public filings with respect to such transactions as is required by applicable
law and regulations (although RGC shall be consulted by the Company or E-Stamp
in connection with any such press release prior to its release and shall be
provided with a copy thereof and be given an opportunity to comment thereon).

                  (l) FURTHER ASSURANCES. Each party shall do and perform, or
cause to be done and performed, all such further acts and things, and shall
execute and deliver all such other agreements, certificates, instruments and
documents, as the other parties may reasonably request in order to carry out the
intent and accomplish the purposes of this Agreement and the consummation of the
transactions contemplated hereby.

                  (m) NO STRICT CONSTRUCTION. The language used in this
Agreement will be deemed to be the language chosen by the parties to express
their mutual intent, and no rules of strict construction will be applied against
any party.

                                       13
<PAGE>

                  IN WITNESS WHEREOF, the undersigned have caused this Agreement
to be duly executed as of the date first above written.

LEARN2.COM, INC.

By:
    -------------------------------------
    Stephen P. Gott
    President and Chief Executive Officer

E-STAMP CORPORATION

By:
    -------------------------------------
    Robert H. Ewald
    President and Chief Executive Officer

RGC INTERNATIONAL INVESTORS, LDC

By:      Rose Glen Capital Management, L.P.,
         Investment Manager

         By:      RGC General Partner Corp.,
                  as General Partner

By:
    -------------------------------------
    Steve Katznelson
    Managing Director

RESIDENCE: Cayman Islands

ADDRESS:

c/o Rose Glen Capital Management, L.P.
3 Bala Plaza East, Suite 501
251 St. Asaphs Road
Bala Cynwyd, PA 19004
Facsimile: (610) 617-0570
Telephone: (610) 617-5900

                                       14

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