Document:

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                                                                     EXHIBIT 4.1

THIS NOTE IS A GLOBAL SECURITY WITHIN THE MEANING OF THE INDENTURE HEREINAFTER
REFERRED TO AND IS REGISTERED IN THE NAME OF A DEPOSITORY OR A NOMINEE THEREOF.
THIS NOTE MAY NOT BE TRANSFERRED TO, OR REGISTERED OR EXCHANGED FOR SECURITIES
REGISTERED IN THE NAME OF, ANY PERSON OTHER THAN THE DEPOSITORY OR A NOMINEE
THEREOF AND NO SUCH TRANSFER MAY BE REGISTERED, EXCEPT IN THE LIMITED
CIRCUMSTANCES DESCRIBED IN THE INDENTURE. EVERY SECURITY AUTHENTICATED AND
DELIVERED UPON REGISTRATION OF TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR
OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER
HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION ("DTC"), TO THE COMPANY (AS
DEFINED BELOW) OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE, OR PAYMENT,
AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH
OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY
PAYMENT IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN
AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE, OR OTHER USE HEREOF FOR
VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED
OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

                  SUN COMMUNITIES OPERATING LIMITED PARTNERSHIP

                                MEDIUM-TERM NOTE
                                  (Fixed Rate)
REGISTERED
NO.  FXR - [__________]                                         PRINCIPAL AMOUNT
CUSIP NO. 86667PAC1                                              $100,000,000.00

ORIGINAL ISSUE DATE:  August 15, 2000
INTEREST RATE:  8.20%
STATED MATURITY DATE: August 15, 2008
INTEREST PAYMENT DATE(S):  February 15 and August 15
INITIAL REDEMPTION DATE:  N/A
INITIAL REDEMPTION PERCENTAGE:  N/A
REDEMPTION PRICE: See Exhibit A
ANNUAL REDEMPTION PERCENTAGE REDUCTION:  N/A
OPTIONAL REPAYMENT DATE(S):  N/A
REPAYMENT PRICE:  N/A

[ ]    CHECK IF A DISCOUNT NOTE

SPECIFIED CURRENCY:                                  AUTHORIZED DENOMINATION:
[x]United States dollars                             [x]$1,000 and integral
[ ]Other:                                               multiples thereof
                                                     [ ]Other:

ISSUE PRICE:  99.781%                                EXCHANGE RATE AGENT: N/A

OTHER/ADDITIONAL
PROVISIONS:  As set forth on Exhibit A               ADDENDUM ATTACHED:  Yes
attached to this Note

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         SUN COMMUNITIES OPERATING LIMITED PARTNERSHIP, a limited partnership
organized and existing under the laws of the State of Michigan (hereinafter
called the "Company", which term includes any successor under the Indenture
hereinafter referred to), for value received, hereby promises to pay to CEDE &
Co., or registered assigns, upon presentation, the principal sum of
$100,000,000.00 on the Stated Maturity Date specified above (or any Redemption
Date or Repayment Date, each as defined on the reverse hereof or upon any
declaration of acceleration; each such Stated Maturity Date, Redemption Date,
Repayment Date or declaration of acceleration being hereinafter referred to as
the "Maturity Date" with respect to the principal repayable on such date), and
to pay interest thereon, at the Interest Rate per annum specified above, until
the entire principal hereof is paid or made available for payment. The Company
will pay interest in arrears on each Interest Payment Date, if any, specified
above (each, an "Interest Payment Date"), commencing with the first Interest
Payment Date next succeeding the Original Issue Date specified above, and on the
Maturity Date; PROVIDED, HOWEVER, that if the Original Issue Date occurs between
a Record Date (as defined below) and the next succeeding Interest Payment Date,
interest payments will commence on the second Interest Payment Date next
succeeding the Original Issue Date to the Holder of this Note on the Record Date
with respect to such second Interest Payment Date. Interest on this Note will be
computed on the basis of a 360-day year of twelve 30-day months. Any capitalized
term not defined herein shall have the meaning assigned to it in that certain
Indenture by and among the Company, Sun Communities, Inc., a Maryland
corporation ("Sun"), and Bankers Trust Company, a New York banking corporation,
dated as of April 24, 1996, and amended pursuant to a First Supplemental
Indenture dated as of August 20, 1997.

         Interest on this Note will accrue from, and including, the immediately
preceding Interest Payment Date to which interest has been paid or duly provided
for (or from, and including, the Original Issue Date if no interest has been
paid or duly provided for) to, but excluding, the applicable Interest Payment
Date or the Maturity Date, as the case may be (each, an "Interest Period"). The
interest so payable, and punctually paid or duly provided for, on any Interest
Payment Date will, subject to certain exceptions described herein, be paid to
the Person in whose name this Note (or one or more predecessor Notes) is
registered in the Security Register applicable to this Note at the close of
business on the fifteenth calendar day (whether or not a Business Day, as
defined below) immediately preceding such Interest Payment Date (the "Record
Date"); PROVIDED, HOWEVER, that interest payable on the Maturity Date will be
payable to the Person to whom the principal hereof and premium, if any, hereon
shall be payable. Any such interest not so punctually paid or duly provided for
("Defaulted Interest") will forthwith cease to be payable to the Holder on any
Record Date, and shall be paid to the Person in whose name this Note is
registered in the Security Register applicable to this Note at the close of
business on a special record date (the "Special Record Date") for the payment of
such Defaulted Interest to be fixed by the Trustee hereinafter referred to,
notice whereof shall be given to the Holder of this Note by the Trustee not less
than 10 calendar days prior to such Special Record Date or may be paid at any
time in any other lawful manner not inconsistent with the requirements of any
securities exchange on which this Note may be listed, and upon such notice as
may be required by such exchange, all as more fully provided for in the
Indenture.

         Payments of principal of, premium, if any, and interest in respect of
this Note due on the Maturity Date will be made in immediately available funds
upon presentation and surrender of this Note (and, with respect to any
applicable Repayment Date, a duly completed election form as contemplated on the
reverse hereof) at the corporate trust office of the Trustee in the Borough of
Manhattan, The City of New York, or at such other paying agency in the Borough
of Manhattan, The City of New York which is maintained by the Trustee where
Notes may be presented for payment, registration of transfer or exchange, and
where notices to or demands upon the Company in respect of the Notes or the
Indenture may be made, as the Company may determine; PROVIDED, HOWEVER, that if
such payment is to be made in a Specified Currency other than United States
dollars as set forth below, such payment will be made by wire transfer of
immediately available funds to an account with a bank designated by the Holder
hereof at least 15 calendar days prior to the Maturity Date, provided that such
bank has appropriate facilities therefor and that this Note (and, if applicable,
a duly completed repayment election form) is presented and surrendered

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at the aforementioned office of the Trustee by 12 noon Eastern time for the
Trustee to make such payment in such funds in accordance with its normal
procedures. Payment of interest due on any Interest Payment Date other than the
Maturity Date will be made by check or wire mailed to the address of the Person
entitled thereto as such address shall appear in the Security Register
maintained at the aforementioned office of the Trustee; PROVIDED, HOWEVER, that
a Holder of U.S. $10,000,000 (or, if the Specified Currency specified above is
other than United States dollars, the equivalent thereof in the Specified
Currency) or more in aggregate principal amount of Notes (whether having
identical or different terms and provisions) will be entitled to receive
interest payments on such Interest Payment Date by wire transfer of immediately
available funds if appropriate wire transfer instructions have been received in
writing by the Trustee not less than 15 calendar days prior to such Interest
Payment Date. Any such wire transfer instructions received by the Trustee shall
remain in effect until revoked by such Holder.

         If any Interest Payment Date or the Maturity Date falls on a day that
is not a Business Day, the required payment of principal, premium, if any,
and/or interest shall be made on the next succeeding Business Day with the same
force and effect as if made on the date such payment was due, and no interest
shall accrue with respect to such payment for the period from and after such
Interest Payment Date or the Maturity Date, as the case may be, to the date of
such payment on the next succeeding Business Day.

         As used herein, "Business Day" means any day, other than a Saturday or
Sunday, that is neither a legal holiday nor a day on which banking institutions
are authorized or required by law, regulation or executive order to close in The
City of New York; PROVIDED, HOWEVER, that if the Specified Currency is other
than United States dollars and any payment is to be made in the Specified
Currency in accordance with the provisions hereof, such day is also not a day on
which banking institutions are authorized or required by law, regulation or
executive order to close in the Principal Financial Center (as defined below) of
the country issuing the Specified Currency (or, in the case of European Currency
Units ("ECU"), is not a day that appears as an ECU non-settlement day on the
display designated as "ISDE" on the Reuter Monitor Money Rates Service (or a day
so designated by the ECU Banking Association) or, if ECU non-settlement days do
not appear on that page (and are not so designated), is not a day on which
payments in ECU cannot be settled in the international interbank market).
"Principal Financial Center" means the capital city of the country issuing the
Specified Currency (except as described in the immediately preceding sentence
with respect to ECUs) except that with respect to United States dollars,
Australian dollars, Canadian dollars, Deutsche marks, Dutch guilders, Italian
lire, Swiss francs and ECU's, the "Principal Financial Center" shall be The City
of New York, Sydney, Toronto, Frankfurt, Amsterdam, Milan, Zurich and
Luxembourg, respectively.

         The Company is obligated to make payment of principal of, premium, if
any, and interest in respect of this Note in the Specified Currency (or, if the
Specified Currency is not at the time of such payment legal tender for the
payment of public and private debts, in such other coin or currency of the
country which issued the Specified Currency as at the time of such payment is
legal tender for the payment of such debts). If the Specified Currency is other
than United States dollars, any such amounts so payable by the Company will be
converted by the Exchange Rate Agent specified above into United States dollars
for payment to the Holder of this Note; PROVIDED, HOWEVER, that the Holder of
this Note may elect to receive such amounts in such Specified Currency pursuant
to the provisions set forth below.

         If the Specified Currency is other than United States dollars and the
Holder of this Note shall not have duly made an election to receive all or a
specified portion of any payment of principal, premium, if any, and/or interest
in respect of this Note in the Specified Currency, any United States dollar
amount to be received by the Holder of this Note will be based on the highest
bid quotation in The City of New York received by the Exchange Rate Agent at
approximately 11:00 A.M., New York City time, on the second Business Day
preceding the applicable payment date from three recognized foreign exchange
dealers (one of whom may be the Exchange Rate Agent) selected by the Exchange
Rate Agent and approved by the Company for the purchase by the quoting dealer of
the Specified Currency for United

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States dollars for settlement on such payment date in the aggregate amount of
the Specified Currency payable to all Holders of Notes scheduled to receive
United States dollar payments and at which the applicable dealer commits to
execute a contract. All currency exchange costs will be borne by the Holder of
this Note by deductions from such payments. If three such bid quotations are not
available, payments on this Note will be made in the Specified Currency unless
the Specified Currency is not available due to the imposition of exchange
controls or other circumstances beyond the control of the Company.

         If the Specified Currency is other than United States dollars, the
Holder of this Note may elect to receive all or a specified portion of any
payment of principal, premium, if any, and/or interest in respect of this Note
in the Specified Currency by submitting a written request for such payment to
the Trustee at its corporate trust office in The City of New York on or prior to
the applicable Record Date or at least 15 calendar days prior to the Maturity
Date, as the case may be. Such written request may be mailed or hand delivered
or sent by facsimile transmission. The Holder of this Note may elect to receive
all or a specified portion of all future payments in the Specified Currency in
respect of such principal, premium, if any, and/or interest and need not file a
separate election for each payment. Such election will remain in effect until
revoked by written notice to the Trustee, but written notice of any such
revocation must be received by the Trustee on or prior to the applicable Record
Date or at least 15 calendar days prior to the Maturity Date, as the case may
be.

         If the Specified Currency is other than United States dollars or a
composite currency and the Holder of this Note shall have duly made an election
to receive all or a specified portion of any payment of principal, premium, if
any, and/or interest in respect of this Note in the Specified Currency and if
the Specified Currency is not available due to the imposition of exchange
controls or other circumstances beyond the control of the Company, the Company
will be entitled to satisfy its obligations to the Holder of this Note by making
such payment in United States dollars on the basis of the Market Exchange Rate
(as defined below) computed by the Exchange Rate Agent on the second Business
Day prior to such payment date or, if such Market Exchange Rate is not then
available, on the basis of the most recently available Market Exchange Rate or
as otherwise specified on the face hereof. The "Market Exchange Rate" for the
Specified Currency means the noon dollar buying rate in The City of New York for
cable transfers for the Specified Currency as certified for customs purposes by
(or if not so certified, as otherwise determined by) the Federal Reserve Bank of
New York. Any payment made under such circumstances in United States dollars
will not constitute an Event of Default.

         If the Specified Currency is a composite currency and the Holder of
this Note shall have duly made an election to receive all or a specified portion
of any payment of principal, premium, if any, and/or interest in respect of this
Note in the Specified Currency and if such composite currency is unavailable due
to the imposition of exchange controls or other circumstances beyond the control
of the Company, then the Company will be entitled to satisfy its obligations to
the Holder of this Note by making such payment in United States dollars. The
amount of each payment in United States dollars shall be computed on the basis
of the equivalent of the composite currency in United States dollars. The
component currencies of the composite currency for this purpose (collectively,
the "Component Currencies" and each, a "Component Currency") shall be the
currency amounts that were components of the composite currency as of the last
day on which the composite currency was used. The equivalent of the composite
currency in United States dollars shall be calculated by aggregating the United
States dollar equivalents of the Component Currencies. The United States dollar
equivalent of each of the Component Currencies shall be determined by the
Exchange Rate Agent on the basis of the Market Exchange Rate on the second
Business Day prior to such payment date or, if such Market Exchange Rate is not
then available, on the basis of the most recently available Market Exchange Rate
for each such Component Currency, or as otherwise specified on the face hereof.

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         If the official unit of any Component Currency is altered by way of
combination or subdivision, the number of units of the currency as a Component
Currency shall be divided or multiplied in the same proportion. If two or more
Component Currencies are consolidated into a single currency, the amounts of
those currencies as Component Currencies shall be replaced by an amount in such
single currency equal to the sum of the amounts of the consolidated Component
Currencies expressed in such single currency. If any Component Currency is
divided into two or more currencies, the amount of the original Component
Currency shall be replaced by the amounts of such two or more currencies, the
sum of which shall be equal to the amount of the original Component Currency.

         All determinations referred to above made by the Exchange Rate Agent
shall be at its sole discretion and shall, in the absence of manifest error, be
conclusive for all purposes and binding on the Holder of this Note.

         Reference is hereby made to the further provisions of this Note set
forth on the reverse hereof after the Trustee's Certificate of Authentication
and, if so specified above, in the Addendum hereto, which further provisions
shall have the same force and effect as if set forth on the face hereof.

         Notwithstanding any provisions to the contrary contained herein, if the
face of this Note specifies that an Addendum is attached hereto or that
"Other/Additional Provisions" apply, this Note shall be subject to the terms set
forth in such Addendum or such "Other/Additional Provisions".

         REFERENCE IS HEREBY MADE TO THE FURTHER PROVISIONS OF THIS NOTE SET
FORTH ON THE REVERSE HEREOF, WHICH FURTHER PROVISIONS SHALL FOR ALL PURPOSES
HAVE THE SAME EFFECT AS IF SET FORTH IN THIS PLACE.

         Unless the Certificate of Authentication hereon has been executed by or
on behalf of the Trustee by manual signature, this Note shall not be entitled to
any benefit under the Indenture or be valid or obligatory for any purpose.

         IN WITNESS WHEREOF, the Company has caused this instrument to be duly
executed under its corporate seal.

                                SUN COMMUNITIES OPERATING
                                LIMITED PARTNERSHIP

                                By:      Sun Communities, Inc.
                                Its:     General Partner

                                         By:  _________________________________
                                              Name:  Gary A. Shiffman
                                              Title:    President

Date: August 15, 2000

                                         By:  _________________________________
                                              Name:  Jeffrey P. Jorissen
                                              Title: Chief Financial Officer

[SEAL]

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                     TRUSTEE'S CERTIFICATE OF AUTHENTICATION

         This is one of the Securities of the series designated therein referred
to in the within-mentioned Indenture.

BANKERS TRUST COMPANY,
as Trustee

By:  _______________________              Date:   _______________________, 2000
         Authorized Officer

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                  SUN COMMUNITIES OPERATING LIMITED PARTNERSHIP

                                MEDIUM -TERM NOTE
                                  (FIXED RATE)

         This Note is one of a duly authorized issue of securities of the
Company (hereinafter called the "Securities"), issued and to be issued in one or
more series under an Indenture (the "Indenture") among the Company, Sun, and
Bankers Trust Company, a New York banking corporation, as Trustee (herein called
the "Trustee", which term includes any successor trustee under the Indenture
with respect to the series of which this Note is a part), to which Indenture and
all indentures supplemental thereto reference is hereby made for a statement of
the respective rights, limitations of rights, duties and immunities thereunder
of the Company, the Trustee and the Holders of the Securities and of the terms
upon which the Securities are, and are to be, authenticated and delivered. This
Note is one of the series of Securities designated as "Medium-Term Notes Due
Nine Months or More From Date of Issue" (the "Notes"). All terms used but not
defined in this Note or in an Addendum hereto shall have the meanings assigned
to such terms in the Indenture.

         This Note is issuable only in registered form without coupons in
minimum denominations of U.S. $1,000 and integral multiples thereof or the
minimum Authorized Denomination specified on the face hereof.

         This Note will not be subject to any sinking fund and, unless otherwise
provided on the face hereof in accordance with the provisions of the following
two paragraphs, will not be redeemable or repayable prior to the Stated Maturity
Date.

         This Note will be subject to redemption at the option of the Company at
any time, in whole or from time to time in part in increments of U.S. $1,000 or
the minimum Authorized Denomination (provided that any remaining principal
amount hereof shall be at least U.S. $1,000 or such minimum Authorized
Denomination), at the Redemption Price (as defined below), together with unpaid
interest accrued thereon to the date fixed for redemption (each, a "Redemption
Date"), on written notice given to the Holder of this Note no more than 60 nor
less than 30 calendar days prior to the Redemption Date as set forth in such
notice and in accordance with the provisions of the Indenture. The "Redemption
Price", if any, shall equal the sum of (i) the principal amount of the Note
being redeemed plus accrued interest thereon to the Redemption Date and (ii) the
Make-Whole Amount, if any, with respect to the Note. The Initial Redemption
Percentage, if any, shall decline at each anniversary of the Initial Redemption
Date by the Annual Redemption Percentage Reduction, if any, specified on the
face hereof until the Redemption Price is 100% of the unpaid principal amount to
be redeemed. In the event of redemption of this Note in part only, a new Note of
like tenor for the unredeemed portion hereof and otherwise having the same terms
as this Note shall be issued in the name of the Holder hereof upon the
presentation and surrender hereof.

         This Note will be subject to repayment by the Company at the option of
the Holder hereof on the Optional Repayment Date(s), if any, specified on the
face hereof, in whole or in part in increments of U.S. $1,000 or the minimum
Authorized Denomination (provided that any remaining principal amount hereof
shall be at least U.S. $1,000 or such minimum Authorized Denomination), at a
repayment price equal to 100% of the unpaid principal amount to be repaid,
together with unpaid interest accrued thereon to the date fixed for repayment
(each, a "Repayment Date"). If an Optional Repayment Date is not set forth on
the face hereof, this Note will not be repayable at the option of the Holder
hereof prior to Maturity. For this Note to be repaid, this Note must be
received, together with the form hereon entitled "Option to Elect Repayment"
duly completed, by the Trustee at its corporate trust office not more than 60
nor less than 30 calendar days prior to the Repayment Date. Exercise of such
repayment option by the Holder hereof will be irrevocable. In the event of
repayment of this Note in part only, a new Note of like tenor for the

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unrepaid portion hereof and otherwise having the same terms as this Note shall
be issued in the name of the Holder hereof upon the presentation and surrender
hereof.

         If this Note is a Discount Note as specified on the face hereof, the
amount payable to the Holder of this Note in the event of redemption, repayment
or acceleration of maturity will be equal to the sum of (1) the Issue Price, if
any, specified on the face hereof (increased by any accruals of the Discount, as
defined below) and, in the event of any redemption of this Note (if applicable),
multiplied by the Initial Redemption Percentage (as adjusted by the Annual
Redemption Percentage Reduction, if applicable), if any, and (2) any unpaid
interest on this Note accrued from the Original Issue Date to the Redemption
Date, Repayment Date or date of acceleration of maturity, as the case may be.
The difference between the Issue Price and 100% of the principal amount of this
Note is referred to herein as the "Discount".

         For purposes of determining the amount of Discount that has accrued as
of any Redemption Date, Repayment Date or date of acceleration of maturity of
this Note, such Discount will be accrued so as to cause the yield on the Note to
be constant. The constant yield will be calculated using a 30-day month, 360-day
year convention, a compounding period that, except for the Initial Period (as
defined below), corresponds to the shortest period between Interest Payment
Dates (with ratable accruals within a compounding period), a coupon rate equal
to the initial interest rate applicable to this Note and an assumption that the
maturity of this Note will not be accelerated. If the period from the Original
Issue Date to the initial Interest Payment Date (the "Initial Period") is
shorter than the compounding period for this Note, a proportionate amount of the
yield for an entire compounding period will be accrued. If the Initial Period is
longer than the compounding period, then such period will be divided into a
regular compounding period and a short period, with the short period being
treated as provided in the preceding sentence.

         If an Event of Default, shall occur and be continuing, the principal
amount of the Notes may be declared accelerated and thereupon become due and
payable in the manner, with the effect, and subject to the conditions provided
in the Indenture.

         The Indenture contains provisions for defeasance at any time of (a) the
entire indebtedness of the Company on this Note and (b) certain restrictive
covenants and the related defaults and Events of Default applicable to the
Company, in each case, upon compliance by the Company with certain conditions
set forth in the Indenture, which provisions apply to this Note.

         If any Event of Default with respect to Securities of this series shall
occur and be continuing, the principal of, and Make-Whole Amount, if any, on the
Securities of this series may be declared due and payable in the manner and with
the effect provided in the Indenture.

         As provided in and subject to the provisions of the Indenture, the
Holder of this Note shall not have the right to institute any proceeding with
respect to the Indenture or for the appointment of a receiver or trustee or for
any other remedy hereunder, unless (i) such Holder shall have previously given
written notice to the Trustee of a continuing Event of Default with respect to
the Securities of this series, (ii) the Holders of not less than 25% in
principal amount of the Securities of this series at the time Outstanding shall
have made written request to the Trustee to institute proceedings in respect of
such Event of Default as Trustee, (iii) such Holder or Holders have offered
reasonable indemnity to the Trustee against the costs, expenses and liabilities
to be incurred in compliance with such request, (iv) the Trustee shall have
failed to institute any such proceeding for 60 days after its receipt of such
notice, request and offer of indemnity, and (v) the Trustee shall not have
received from the Holders of a majority in principal amount of Securities of
this series at the time Outstanding a direction inconsistent with such request.
The foregoing shall not apply to any suit instituted by the Holder of this Note
for the enforcement of any payment of principal hereof (and Make-Whole Amount,
if any) or any interest thereon on or after the respective due dates expressed
herein.

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         The Indenture permits, with certain exceptions as therein provided, the
amendment thereof and the modification of the rights and obligations of the
Company and the rights of the Holders of the Securities of each series to be
affected under the Indenture at any time by the Company and the Trustee with the
consent of the Holders of not less than a majority in principal amount of the
Securities of each series at the time Outstanding affected thereby. The
Indenture also contains provisions permitting the Holders of at least a majority
in principal amount of the Securities of each series at the time Outstanding, on
behalf of the Holders of all Securities of such series, to waive compliance by
the Company with certain provisions of the Indenture and certain past defaults
under the Indenture and their consequences. Any such consent or waiver by the
Holders of this Note shall be conclusive and binding upon such Holder and upon
all future Holders of this Note and of any Security issued upon the registration
of transfer hereof or in exchange herefor or in lieu hereof, whether or not
notation of such consent or waiver is made upon this Note.

         No reference herein to the Indenture and no provision of this Note or
of the Indenture shall alter or impair the obligation of the Company, which is
absolute and unconditional, to pay the principal of, Make-Whole Amount, if any,
on, and interest on this Note at the times, place and rate, and in the coin or
currency, herein prescribed.

         As provided in the Indenture and subject to certain limitations therein
set forth, the transfer of this Note is registrable in the Security Register,
upon surrender of this Note for registration of transfer at the office or agency
of the Company in any Place of Payment where the principal of, Make-Whole
Amount, if any, on, and interest on this Note are payable, duly endorsed by, or
accompanied by a written instrument of transfer in form satisfactory to the
Company and the Security Registrar duly executed by, the Holder hereof or his
attorney duly authorized in writing, and thereon one or more new Securities of
this series, of authorized denominations and for the same aggregate principal
amount, will be issued to the designated transferee or transferees.

         No service charge shall be made for any registration of transfer or
exchange of Securities of this series, but the Company may require payment of a
sum sufficient to cover any tax or other governmental charge payable in
connection therewith. In no event shall the Company be required to pay any
Additional Amounts as contemplated by the Indenture.

         Prior to due presentment of this Note for registration of transfer, the
Company, the Trustee and any agent of the Company or the Trustee may treat the
Person in whose name this Note is registered as the owner hereof for all
purposes, whether or not this Note be overdue, and neither the Company, the
Trustee nor any such agent shall be affected by notice to the contrary.

         No recourse under or upon any obligation, covenant or agreement
contained in the Indenture or in this Note, or because of any indebtedness
evidenced thereby or hereby, shall be had against any promoter, as such or,
against any past, present or future stockholder, partner, officer or director,
as such, of the Company or of any successor, either directly or through the
Company or any successor, under any rule of law, statute or constitutional
provision or by the enforcement of any assessment or by any legal or equitable
proceeding or otherwise, all such liability being expressly waived and released
by the acceptance of this Note by the Holder thereof and as part of the
consideration for the issue of the Securities of this series.

         THE INDENTURE AND THE SECURITIES, INCLUDING THIS NOTE, SHALL BE
GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAW OF THE STATE OF NEW YORK.

         Pursuant to a recommendation promulgated by the Committee on Uniform
Security Identification Procedures, the Company has caused "CUSIP" numbers to be
printed on the Securities of this series as a convenience to the Holders of such
Securities. No representation is made as to the correctness or

                                       9
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accuracy of such CUSIP numbers as printed on the Securities, and reliance may be
placed only on the other identification numbers printed hereon.

                                       10
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                                  ABBREVIATIONS

         The following abbreviations, when used in the inscription on the face
of this instrument, shall be construed as though they were written out in full
according to applicable laws or regulations:

<TABLE>
<S>            <C>                                        <C>
TEN COMM -     as tenants in common                        UNIF GIFT MIN ACT -
TEN ENT -               as tenants by the entirety           _______ Custodian ______
JT TEN -                as joint tenants with right          (Cust) (Minor)
                        of survivorship and not as           Under Uniform Gifts to Minors
                        tenants in common                    Act _______________
                                                                    (State)
</TABLE>

Additional abbreviations may also be used though not in the above list.

         _____________________________________________

Social Security or taxpayer I.D.  or other identifying number of assignee.

______________________________

  FOR VALUE RECEIVED, the undersigned hereby sells, assigns and transfers unto

                                           (name and address of assignee)

the within Note and all rights thereunder, hereby irrevocably constituting and
appointing ________________, attorney to transfer said Note on the books kept
for registration thereof, with full power of substitution in the premises.

Dated: _______, 2000

                                      __________________________________________

                                       11
<PAGE>   12

                            OPTION TO ELECT REPAYMENT

The undersigned hereby irrevocably request(s) and instruct(s) the Company to
repay this Note (or portion hereof specified below) pursuant to its terms at a
price equal to 100% of the principal amount to be repaid, together with unpaid
interest accrued hereon to the Repayment Date, to the undersigned, at

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

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

----------------------------------
(Please print or typewrite name and address of the undersigned)

         For this Note to be repaid, the Trustee must receive at its corporate
trust office in the Borough of Manhattan, The City of New York, not more than 60
nor less than 30 calendar days prior to the Repayment Date, this Note with this
"Option to Elect Repayment" form duly completed.

         If less than the entire principal amount of this Note is to be repaid,
specify the portion hereof (which shall be increments of U.S. $1,000 (or, if the
Specified Currency is other than United States dollars, the minimum Authorized
Denomination specified on the face hereof)) which the Holder elects to have
repaid and specify the denomination or denominations (which shall be an
Authorized Denomination) of the Notes to be issued to the Holder for the portion
of this Note not being repaid (in the absence of any such specification, one
such Note will be issued for the portion not being repaid).

         IF AN OPTIONAL REPAYMENT DATE IS NOT SET FORTH ON THE FACE HEREOF, THIS
NOTE WILL NOT BE REPAYABLE AT THE OPTION OF THE UNDERSIGNED PRIOR TO MATURITY.

Principal Amount
to be Repaid: $

                                            ------------------------------------
Date:                                       Notice: The signature(s) on this
                                            Option to Elect Repayment must
                                            correspond with the name(s) as
                                            written upon the face of this Note
                                            in every particular, without
                                            alteration or enlargement or any
                                            change whatsoever.

                                       12
<PAGE>   13

                                                                       EXHIBIT A

                                Other Provisions

OPTIONAL REDEMPTION

The Notes may be redeemed at any time at the Company's option, in whole or in
part, upon notice of not more than 60 nor less than 30 days prior to the
Redemption Date, at a Redemption Price equal to the sum of (i) the principal
amount of the Notes being redeemed plus accrued interest thereon to the
Redemption Date and (ii) the Make-Whole Amount, if any, with respect to such
Note.

Definitions. Terms used but not defined herein shall have the meanings set forth
in the Indenture. The following terms shall have the following meanings:

"Make-Whole Amount" means, in connection with any optional redemption or
accelerated payment of any Note, the excess, if any, of (i) the aggregate
present value as of the date of such redemption or accelerated payment of each
dollar of principal being redeemed or paid and the amount of interest (exclusive
of interest accrued to the date of redemption or accelerated payment) that would
have been payable in respect of such dollar if such redemption or accelerated
payment had not been made, determined by discounting, on a semi-annual basis,
such principal and interest at the Reinvestment Rate (determined on the third
Business Day preceding the date such notice of redemption is given or
declaration of acceleration is made) from the respective dates on which such
principal and interest would have been payable if such redemption or accelerated
payment had not been made, over (ii) the aggregate principal amount of the Notes
being redeemed or paid.

"Reinvestment Rate" means .25% (twenty-five one hundredths of one percent) plus
the arithmetic mean of the yields under the respective headings "This Week" and
"Last Week" published in the Statistical Release under the caption "Treasury
Constant Maturities" for the maturity (rounded to the nearest month)
corresponding to the remaining life to maturity, as of the payment date of the
principal being redeemed or paid. If no maturity exactly corresponds to such
maturity, yields for the two published maturities most closely corresponding to
such maturity shall be calculated pursuant to the immediately preceding sentence
and the Reinvestment Rate shall be interpolated or extrapolated from such yields
on a straight-line basis, rounding in each of such relevant periods to the
nearest month. For such purposes of calculating the Reinvestment Rate, the most
recent Statistical Release published prior to the date of determination of the
Make-Whole Amount shall be used.

"Statistical Release" means the statistical release designated "H.15(519)" or
any successor publication which is published weekly by the Federal Reserve
System and which establishes yields on actively traded United States government
securities adjusted to constant maturities or, if such statistical release is
not published at the time of any determination of the Make-Whole Amount, then
such other reasonably comparable index which shall be designated by us.

                                       13<PAGE>   1
                                                                     EXHIBIT 4.1

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. PP-1                                                   Irving, Texas
                                                                  April 26, 2000

         This certifies that, for value received, DARA PODBER, or her successors
or assigns ("Holder") is entitled to purchase from PopMail.com, inc. (the
"Company") Twenty-Five Thousand (25,000) fully paid and nonassessable shares
(the "Shares") of the Company's Common Stock, $.01 par value (the "Common
Stock"), at any time from May 1, 2000 until May 1, 2005 (the "Warrant Exercise
Period"), at an exercise price of $1.625 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), during the Warrant Exercise Period by the surrender of this
Warrant (properly endorsed, if required, at the Company's principal office in
Bloomington, Minnesota, 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.

<PAGE>   2

                  (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.

                  (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

                                       2
<PAGE>   3

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 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.

                                       3
<PAGE>   4

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

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

         7. 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.

         8. 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.,
1331 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:
                                       --------------------------------

                                       4
<PAGE>   5

                                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)

                                       5

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