LIMITED POWER OF ATTORNEY FOR
SECTION 16 REPORTING OBLIGATIONS

Know all persons by these presents that the undersigned hereby makes,
constitutes and appoints Seth Weisberg, Matthew A. Lipson, Sara Kani, Juliet
Stone and David M. Zlotchew as the undersigned's true and lawful
attorney-in-fact, each with full power and authority as hereinafter described on
behalf of and in the name, place and stead of the undersigned:

(1)    to prepare, execute, acknowledge, deliver and file Forms 3, 4, and 5
(including any amendments thereto) with respect to the securities of Stamps.com
Inc., a Delaware corporation (the "Company"), with the United States Securities
and Exchange Commission (the "SEC"), any national securities exchanges and the
Company, as considered necessary or advisable under Section 16(a) of the
Securities Exchange Act of 1934 and the rules and regulations promulgated
thereunder, as amended from time to time (the "Exchange Act");

(2)    to prepare, execute, acknowledge, deliver and file Form ID (including any
amendments thereto) with the SEC in order to apply for EDGAR access codes on the
undersigned's behalf, and to generate new and/or replacement EDGAR access codes,
to reset the EDGAR passphrase and take any other action considered necessary or
advisable with respect to the undersigned's access to the undersigned's status
as an electronic filer with respect to the SEC's EDGAR system;

(3)    to seek or obtain, as the undersigned's representative and on the
undersigned's behalf, information on transactions in the Company's securities
from any third party, including brokers, employee benefit plan administrators
and trustees, and the undersigned hereby authorizes any such person to release
any such information to the undersigned and approves and ratifies any such
release of information; and

(4)    to perform any and all other acts which in the discretion of such
attorney-in-fact are necessary or desirable for and on behalf of the undersigned
in connection with the foregoing.

The undersigned acknowledges that:

(A)    this Power of Attorney authorizes, but does not require, such
attorney-in-fact to act in its discretion on information provided to such
attorney-in-fact without independent verification of such information;

(B)    any documents prepared and/or executed by any such attorney-in-fact on
behalf of the undersigned pursuant to this Power of Attorney will be in such
form and will contain such information and disclosure as such attorney-in-fact,
in his or her discretion, deems necessary or desirable;

(C)    neither the Company nor such attorney-in-fact assumes (i) any liability
for the undersigned's responsibility to comply with the requirement of the
Exchange Act, (ii) any liability of the undersigned for any failure to comply
with such requirements, or (iii) any obligation or liability of the undersigned
for profit disgorgement under Section 16(b) of the Exchange Act; and

(D)    this Power of Attorney does not relieve the undersigned from
responsibility for compliance with the undersigned's obligations under the
Exchange Act, including without limitation the reporting requirements under
Section 16 of the Exchange Act.

The undersigned hereby gives and grants each foregoing attorney-in-fact full
power and authority to do and perform all and every act and thing whatsoever
requisite, necessary or appropriate to be done in and about the foregoing
matters as fully to all intents and purposes as the undersigned might or could
do if present, hereby ratifying all that such attorney-in-fact, of, for and on
behalf of the undersigned, shall lawfully do or cause to be done by virtue of
this Limited Power of Attorney.

This Power of Attorney shall remain in full force and effect until revoked by
the undersigned in a signed writing delivered to such attorney-in-fact.

    IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be
executed as of this 31st day of July, 2017.





                                         /s/ Jeffrey Carberry
                                         _________________________________
                                         Signature


                                         Jeffrey Carberry
                                         _________________________________
                                         Print Name