Stamps.com Delivers New USPS Rates and New Functionality with the Release of Stamps.com Version 2.4

Stamps.com Customers will Benefit from a Smooth Transition to the New Rates

Santa Monica, Calif. – June 17, 2002 – Stamps.com (Nasdaq: STMP), the leading provider of online postage to home and business users, today released Stamps.com version 2.4, the newest version of its software, including the new USPS rates which go into effect on June 30, 2002. With the release of this new version, Stamps.com helps its customers to eliminate the usual hassle and confusion associated with postal rate changes.

With the new Stamps.com version 2.4, Stamps.com customers can avoid the rush and the lines at the post office to buy new postage stamps. Plus, there is no confusion as to what the new rates are and which mail classes and services are impacted. The new rates and zoning rules are automatically integrated into the software’s postage calculator so that all postage printed with a date on or after June 30th print with updated rates, helping to minimize returned mail due to insufficient postage and even over-payment of postage in certain cases.

Stamps.com offers a software-based solution so that customers use just their PC, printer and Internet connection to purchase and print postage, right from the convenience of their home or office. Unlike traditional postage meters, there is no special hardware required to print postage, and no special installation needed to update the rates. New and current customers can simply visit sdcmainprod.wpengine.com and download Stamps.com version 2.4 with the new rates.

“The upcoming postal rate change demonstrates another advantage that users of a software-based postage solution enjoy compared to users of hardware solutions. Because we deliver the new rates online through a simple free download, our customers save time with an easier and smoother transition to the new rates. In addition, our customers do not pay any extra fees for the new rates, unlike some users of traditional meters who must pay extra to enable their meters to print new rates,” said Ken McBride, chief executive officer of Stamps.com.

Stamps.com is committed to offering the best online postage service, and continues to make strides to improve and provide added value to its service. The new Stamps.com software not only includes the new rates, but also introduces new functionality and enhanced usability of the service. Highlights of Stamps.com version 2.4 include:

New USPS Rates – New rates for First-Class, Priority Mail, Express Mail, Parcel Post and Media Mail and USPS Special Services, such as Delivery Confirmation, Registered Mail, Certified Mail, Return Receipt, and Insurance.

Media Mail – Support for Media Mail, formerly known as Book Rate.

Flyers – Ability to print postage directly on 8 1/2 x 11-inch flyers which the user then folds and seals for mailing.

Other new features – Enhanced address book performance – new sorting capabilities and faster loading. Plus, new Tips & Tools resource section of useful advice and helpful resources.

Stamps.com continues to make progress towards USPS approval of a new form of postage. This new feature enables customers to print labels with postage that can be used like regular stamps. The postage is not tied to a specific date or address, allowing customers to pre-print and store them for later use. Stamps.com is working closely with the USPS and, upon approval, will introduce this new feature to the entire customer base.

About Stamps.com

Stamps.com (Nasdaq: STMP) is the leading provider of Internet-based postage services. Stamps.com’s software solution enables customers to print U.S. Postal Service-approved postage via a computer and Internet connection.

“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, including the company’s ability to complete its products and obtain regulatory approval, 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 annual report on Form 10-K for the fiscal year ended December 31, 2001, and its Current Reports on Form 8-K. Stamps.com undertakes no obligation to release publicly any revisions to any forward-looking statements to reflect events or circumstances after the date hereof or to reflect the occurrence of unanticipated events.

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