STAMPS.COM FILES REGISTRATION STATEMENT FOR PUBLIC OFFERING

SANTA MONICA, Calif. – (November 1, 1999) – Stamps.com™ (Nasdaq: STMP) today announced that it has filed a registration statement with the Securities and Exchange Commission for a proposed offering of up to 5,750,000 shares of Stamps.com common stock.

All of the shares will be offered by Stamps.com. To the extent the underwriters sell more than 5,000,000 shares of common stock, the underwriters have an option to purchase up to an additional 750,000 shares from Stamps.com at the price to the public less the underwriting discount.

The offering is being managed by Goldman, Sachs & Co., Salomon Smith Barney Inc., BancBoston Robertson Stephens Inc., Thomas Weisel Partners LLC and Volpe Brown Whelan & Company, LLC.

A registration statement relating to shares of Stamps.com common stock has been filed with the Securities and Exchange Commission but has not yet become effective. These securities may not be sold nor may offers to buy be accepted prior to the time the registration statement becomes effective. This press release shall not constitute an offer to sell or a solicitation of an offer to buy, nor shall there be any sale of these securities in any state or jurisdiction in which such offer, solicitation, or sale would be unlawful under the securities laws of any such state or jurisdiction.

A copy of the Prospectus relating to the offering may be obtained from the Prospectus Department of Goldman, Sachs & Co., at 85 Broad Street, New York, NY 10004, 212-902-1000, when available. You can also view the registration statement on the Internet at http://www.freeedgar.com.

About Stamps.com

Founded in 1996, Santa Monica, Calif.-based Stamps.com is the only commercially approved true Internet Postage service. The company’s technology eliminates the need for specialized hardware by giving customers the flexibility to print postage over the Internet – securely, accurately and fast. Through partnerships with major companies like America Online, IBM, Microsoft, Office Depot, Quicken.com and 3M, Stamps.com targets the small office/home office and consumer markets. More information about the company can be found at sdcmainprod.wpengine.com.

“Safe Harbor” Statement under the Private Securities Litigation Reform Act of 1995: This release may contain forward-looking statements that involve risks and uncertainties. Important factors, which could cause actual results to differ materially from those in the forward-looking statements, are detailed in filings with the Securities and Exchange Commission made from time to time by Stamps.com, including its Form 10-Q for the quarter ended June 30, 1999, and Stamps.com’s prospectus, related to its initial public offering, that was filed with the SEC on June 25, 1999.

Internet Postage, Stamps.com and the Stamps.com logo are trademarks of Stamps.com Inc. All other brands and names are property of their respective owners.