Document:

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                                                                     EXHIBIT 4.2

THE WARRANT AND THE SECURITIES ISSUABLE UPON EXERCISE OF THIS WARRANT (THE
"SECURITIES") HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933 (THE
"SECURITIES ACT") OR UNDER ANY STATE SECURITIES OR BLUE SKY LAWS ("BLUE SKY
LAWS"). NO TRANSFER, SALE, ASSIGNMENT, PLEDGE, HYPOTHECATION OR OTHER
DISPOSITION OF THIS WARRANT OR THE SECURITIES OR ANY INTEREST THEREIN MAY BE
MADE EXCEPT (A) PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE
SECURITIES ACT AND ANY APPLICABLE BLUE SKY LAWS OR (B) IF THE COMPANY HAS BEEN
FURNISHED WITH BOTH AN OPINION OF COUNSEL FOR THE HOLDER, WHICH OPINION AND
COUNSEL SHALL BE REASONABLY SATISFACTORY TO THE COMPANY, TO THE EFFECT THAT NO
REGISTRATION IS REQUIRED BECAUSE OF THE AVAILABILITY OF AN EXEMPTION FROM
REGISTRATION UNDER THE SECURITIES ACT AND APPLICABLE BLUE SKY LAWS, AND
ASSURANCES THAT THE TRANSFER, SALE, ASSIGNMENT, PLEDGE, HYPOTHECATION OR OTHER
DISPOSITION WILL BE MADE ONLY IN COMPLIANCE WITH THE CONDITIONS OF ANY SUCH
REGISTRATION OR EXEMPTION.

                   WARRANT TO PURCHASE SHARES OF COMMON STOCK
                              OF POPMAIL.COM, INC.

WARRANT NO. R-#                                                    Irving, Texas
                                                                 August 18, 2000

         This certifies that, for value received, XXXXXXXXXXXXXXXXXXXXXXX, or
its successors or assigns ("Holder") is entitled to purchase from PopMail.com,
inc. (the "Company") Eight Hundred Thousand (800,000) fully paid and
nonassessable shares (the "Shares") of the Company's Common Stock, $.01 par
value (the "Common Stock"), at any time from the date hereof until August 18,
2005 (the "Warrant Exercise Period"), at an exercise price of $0.625 per share
(the "Exercise Price"), subject to adjustment as herein provided.

         This Warrant is subject to the following provisions, terms and
conditions:

         1. Exercise of Warrant. The rights represented by this Warrant may be
exercised by the Holder, in whole or in part (but not as to a fractional share
of Common Stock), by the surrender of this Warrant (properly endorsed, if
required, at the Company's principal office in Irving, Texas, or such other
office or agency of the Company as the Company may designate by notice in
writing to the Holder at the address of such Holder appearing on the books of
the Company at any time within the period above named), and upon payment to it
by certified check, bank draft or cash of the purchase price for such Shares.
The Company agrees that the Shares so purchased shall have and are deemed to be
issued to the Holder as the record owner of such Shares as of the close of
business on the date on which this Warrant shall have been surrendered and
payment made for such Shares as aforesaid. Certificates for the Shares of Common
Stock so purchased shall be delivered to the Holder within a reasonable time,
not exceeding ten (10) days, after the rights represented by this Warrant shall
have been so exercised, and, unless this Warrant has expired, a new Warrant
representing the number of Shares, if any, with respect to which this Warrant
shall not then have been exercised shall also be delivered to the Holder within
such time. The Company may require that any such new Warrant or any certificate
for Shares purchased upon the exercise hereof bear a legend substantially
similar to that which is contained on the face of this Warrant.

         2. Transferability of this Warrant. This Warrant is issued upon the
following terms, to which each Holder consents and agrees:

            a. Until this Warrant is transferred on the books of the Company,
         the Company will treat the Holder of this Warrant registered as such on
         the books of the Company as the absolute owner hereof for all purposes
         without being affected by any notice to the contrary.

            b. This Warrant may not be exercised, and this Warrant and the
         Shares underlying this Warrant shall not be transferable, except in
         compliance with all applicable state and federal securities laws,
         regulations and orders, and with all other applicable laws, regulations
         and orders.

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            c. Prior to making any disposition of this Warrant or of any of the
         Shares underlying this Warrant, the Holder will give written notice to
         the Company describing the manner of any such proposed disposition. The
         Warrant may not be transferred, and the Shares may not be transferred,
         without the Holder obtaining an opinion of counsel satisfactory in form
         and substance to the Company's counsel stating that the proposed
         transaction will not result in a prohibited transaction under the
         Securities Act, and applicable Blue Sky laws. By accepting this
         Warrant, the Holder agrees to act in accordance with any conditions
         reasonably imposed on such transfer by such opinion of counsel.

            d. Neither this issuance of this Warrant nor the issuance of the
         Shares underlying this Warrant have been registered under the
         Securities Act.

         3. Certain Covenants of the Company. The Company covenants and agrees
that all Shares which may be issued upon the exercise of the rights represented
by this Warrant, upon issuance and full payment for the Shares so purchased,
will be duly authorized and issued, fully paid and nonassessable and free from
all taxes, liens and charges with respect to the issue hereof, except those that
may be created by or imposed upon the Holder or its property, and without
limiting the generality of the foregoing, the Company covenants and agrees that
it will from time to time take all such actions as may be requisite to assure
that the par value per share of the Common Stock is at all times equal to or
less than the effective purchase price per share of the Common Stock issuable
pursuant to this Warrant. The Company further covenants and agrees that during
the period within which the rights represented by this Warrant may be exercised,
the Company will at all times have authorized and reserved free of preemptive or
other rights for the exclusive purpose of issue upon exercise of the purchase
rights evidenced by this Warrant, a sufficient number of shares of its Common
Stock to provide for the exercise of the rights represented by this Warrant.

         4. Adjustment of Exercise Price and Number of Shares. The Exercise
Price and number of Shares are subject to the following adjustments:

            a. Adjustment of Exercise Price for Stock Dividend, Stock Split or
Stock Combination. In the event that (i) any dividends on any class of stock of
the Company payable in Common Stock or securities convertible into or
exercisable for Common Stock ("Common Stock Equivalents") shall be paid by the
Company, (ii) the Company shall subdivide its then outstanding shares of Common
Stock into a greater number of shares, or (iii) the Company shall combine its
outstanding shares of Common Stock, by reclassification or otherwise, then, in
any such event, the Exercise Price in effect immediately prior to such event
shall (until adjusted again pursuant hereto) be adjusted immediately after such
event to a price (calculated to the nearest full cent) determined by dividing
(a) the number of shares of Common Stock outstanding immediately prior to such
event, multiplied by the then existing Exercise Price, by (b) the total number
of shares of Common Stock outstanding immediately after such event, and the
resulting quotient shall be the adjusted Exercise Price per share. No adjustment
of the Exercise Price shall be made if the amount of such adjustment shall be
less than $.05 per share, but in such case any adjustment that would otherwise
be required then to be made shall be carried forward and shall be made at the
time and together with the next subsequent adjustment which, together with any
adjustment or adjustments so carried forward, shall amount to not less than $.05
per share.

            b. Adjustment of Number of Shares Purchasable on Exercise of
Warrants. Upon each adjustment of the Exercise Price pursuant to this Section,
the Holder shall thereafter (until another such adjustment) be entitled to
purchase at the adjusted Exercise Price the number of shares, calculated to the
nearest full share, obtained by multiplying the number of shares specified in
such Warrant (as

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adjusted as a result of all adjustments in the Exercise Price in effect prior to
such adjustment) by the Exercise Price in effect prior to such adjustment and
dividing the product so obtained by the adjusted Exercise Price.

            c. Notice as to Adjustment. Upon any adjustment of the Exercise
Price and any increase or decrease in the number of shares of Common Stock
purchasable upon the exercise of the Warrant, then, and in each such case, the
Company within thirty (30) days thereafter shall give written notice thereof, by
first class mail, postage prepaid, addressed to each Holder as shown on the
books of the Company, which notice shall state the adjusted Exercise Price and
the increased or decreased number of shares purchasable upon the exercise of the
Warrants, and shall set forth in reasonable detail the method of calculation and
the facts upon which such calculation is based.

            d. Effect of Reorganization, Reclassification, Merger, etc. If at
any time while any Warrant is outstanding there should be any capital
reorganization of the capital stock of the Company (other than the issuance of
any shares of Common Stock in subdivision of outstanding shares of Common Stock
by reclassification or otherwise and other than a combination of shares provided
for in Section 4(a) hereof), or any consolidation or merger of the Company with
another corporation, or any sale, conveyance, lease or other transfer by the
Company of all or substantially all of its property to any other corporation,
which is effected in such a manner that the holders of Common Stock shall be
entitled to receive cash, stock, securities, or assets with respect to or in
exchange for Common Stock, then, as a part of such transaction, lawful provision
shall be made so that each Holder shall have the right thereafter to receive,
upon the exercise hereof, the number of shares of stock or other securities or
property of the Company, or of the successor corporation resulting from such
consolidation or merger, or of the corporation to which the property of the
Company has been sold, conveyed, leased or otherwise transferred, as the case
may be, which the Holder would have been entitled to receive upon such capital
reorganization, reclassification of capital stock, consolidation, merger, sale,
conveyance, lease or other transfer, if such Warrant had been exercised
immediately prior to such capital reorganization, reclassification of capital
stock, consolidation, merger, sale, conveyance, lease or other transfer. In any
such case, appropriate adjustments (as determined by the Board of Directors of
the Company) shall be made in the application of the provisions set forth in
this Warrant (including the adjustment of the Exercise Price and the number of
Shares issuable upon the exercise of the Warrants) to the end that the
provisions set forth herein shall thereafter be applicable, as near as
reasonably may be, in relation to any shares or other property thereafter
deliverable upon the exercise of the Warrants as if the Warrants had been
exercised immediately prior to such capital reorganization, reclassification of
capital stock, such consolidation, merger, sale, conveyance, lease or other
transfer and the Warrant Holders had carried out the terms of the exchange as
provided for by such capital reorganization, consolidation or merger. The
Company shall not effect any such capital reorganization, consolidation, merger
or transfer unless, upon or prior to the consummation thereof, the successor
corporation or the corporation to which the property of the Company has been
sold, conveyed, leased or otherwise transferred shall assume by written
instrument the obligation to deliver to each Holder such shares of stock,
securities, cash or property as in accordance with the foregoing provisions such
Holder shall be entitled to purchase.

         5. No Rights as Stockholders. This Warrant shall not entitle the Holder
as such to any voting rights or other rights as a stockholder of the Company.

         6. Registration Rights. If at any during the Warrant Exercise Period,
the Company shall propose to file any registration statement (other than any
registration on Form S-4, S-8 or any other similarly inappropriate form, or any
successor forms thereto) under the 1933 Act covering a public offering of the
Company's Common Stock, it will notify the Holder hereof at least thirty (30)
days prior to each such filing and will use its best efforts to include in the
Registration Statement (to the extent permitted by applicable regulation), the
Common Stock purchased or purchasable by the Holder upon

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the exercise of the Warrant to the extent requested by the Holder hereof within
twenty (20) days after receipt of notice of such filing (which request shall
specify the interest in this Warrant or the Warrant Shares intended to be sold
or disposed of by such Holder and describe the nature of any proposed sale or
other disposition thereof); provided, however, that if a greater number of
Warrants and Warrant Shares is offered for participation in the proposed
offering than in the reasonable opinion of the managing underwriter of the
proposed offering can be accommodated without adversely affecting the proposed
offering, then the amount of Warrant and Warrant Shares proposed to be offered
by such Holders for registration, as well as the number of securities of any
other selling shareholders participating in the registration, shall be
proportionately reduced to a number deemed satisfactory by the managing
underwriter. The Company shall bear all expenses and fees incurred in connection
with the preparation, filing, and amendment of the Registration Statement with
the Commission, except that the Holder shall pay all fees, disbursements and
expenses of any counsel or expert retained by the Holder and all underwriting
discounts and commissions, filing fees and any transfer or other taxes relating
to the Shares included in the Registration Statement. The Holder of this Warrant
agrees to cooperate with the Company in the preparation and filing of any
Registration Statement, and in the furnishing of information concerning the
Holder for inclusion therein, or in any efforts by the Company to establish that
the proposed sale is exempt under the 1933 Act as to any proposed distribution.

         7. Governing Law. This Warrant shall be governed by and construed in
accordance with the laws of the State of Minnesota.

         8. Amendments and Waivers. The provisions of this Warrant may not be
amended, modified or supplemented, and waiver or consents to departures from the
provisions hereof may not be given, unless the Company agrees in writing and has
obtained the written consent of the Holders.

         9. Notices. All notices or communications hereunder, except as herein
otherwise specifically provided, shall be in writing and if sent to the Holder
shall be mailed, delivered, or telefaxed and confirmed to the Holder at his or
her address set forth on the records of the Company; or if sent to the Company
shall be mailed, delivered, or telefaxed and confirmed to PopMail.com, inc.,
1333 Corporate Drive, Suite 350, Irving, TX 75038 or to such other address as
the Company or the Holder shall notify the other as provided in this Section.

         IN WITNESS WHEREOF, PopMail.com, inc. has caused this Warrant to be
signed by its duly authorized officer in the date set forth above.

                                        POPMAIL.COM, INC.

                                        By:
                                           -------------------------------------

                                        Its:
                                            ------------------------------------

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                                SUBSCRIPTION FORM

         To be signed only upon exercise of Warrant.

         The undersigned, the holder of the within Warrant, hereby irrevocably
elects to exercise the purchase right represented by such Warrant for, and to
purchase thereunder, ___________________________________________ of the shares
of Common Stock of PopMail.com, inc. (the "Shares") to which such Warrant
relates and herewith makes payment of $______ therefor in cash, certified check
or bank draft and requests that a certificate evidencing the Shares be delivered
to, _______________________________, the address for whom is set forth below the
signature of the undersigned:

Dated:
      -------------------------------

                                       -----------------------------------------
                                       (Signature)

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

                                       -----------------------------------------
                                       (Address)

                                      ~ ~ ~

                                 ASSIGNMENT FORM

         To be signed only upon authorized transfer of Warrant.

         FOR VALUE RECEIVED, the undersigned hereby sells, assigns, and
transfers unto _____________________________________ the right to purchase
shares of Common Stock of PopMail.com, inc. to which the within Warrant relates
and appoints ____________________ attorney, to transfer said right on the books
of _________________ with full power of substitution in the premises.

Dated:
      -------------------------------

                                       -----------------------------------------
                                       (Signature)

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

                                       -----------------------------------------
                                       (Address)

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                                                                     EXHIBIT 4.3

                     Schedule of Warrants Issued (R Series)

<TABLE>
<CAPTION>
DATE OF                                                     WARRANT       NUMBER           EXERCISE PRICE
ISSUE           NAME                                        NO.           OF SHARES        EXPIRATION DATE
=============== ==========================================  ============= ===============  =========================
<S>             <C>                                         <C>           <C>              <C>
8/18/2000       The Shaar Fund Ltd.                         R-1           800,000          Exercise Price: $0.625
                                                                                           Expires: 8/18/2005

8/18/2000       Gulfstream Financial Partners, LLC          R-2           800,000          Exercise Price: $0.625
                                                                                           Expires: 8/18/2005

8/18/2000       Blake Capital Partners, LLC                 R-3           400,000          Exercise Price: $0.625
                                                                                           Expires: 8/18/2005
</TABLE>

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