Your Stamps.com $80 Offer

FREE 5lb Digital Scale

As a new Stamps.com customer you will receive a FREE 5 lb. Digital Scale. The scale is a $50 value and is yours to keep with no additional obligation. Just pay for shipping and handling (typically $9.99 or less).

$25 Postage Offer

As a new Stamps.com customer you will receive $5 in free postage that you can use during your trial period. After you complete your trial period, you are eligible for an additional $20 in postage. We will give you two $10 postage coupons. You can redeem one coupon per month once you complete your trial.

FREE Supplies Kit

To help you get started we will ship you a free Supplies Kit that includes free postage labels to use with the service (a $5 value). However, you don't need to wait for the Supplies Kit to arrive in order to print postage. You can immediately take advantage of features such as printing shipping labels on plain paper or printing postage directly on envelopes!

Stamps.com to Present at Craig Hallum Institutional Investor Conference

LOS ANGELES, June 3, 2005 – Stamps.com® (Nasdaq: STMP – News) will be presenting at the Craig Hallum Institutional Investor Conference at the Millennium Hotel in Minneapolis, MN on June 9, 2005. The Company will be presenting at 9:20 a.m. Central. The presentation can be accessed via the investor relations website at http://investor.stamps.com.

About Stamps.com and PhotoStamps

Stamps.com (Nasdaq: STMP – News) is a leading provider of Internet–based postage services. Stamps.com enables over 375,000 customers to print U.S. Postal Service–approved postage with just a PC, printer and Internet connection, right from their home or office. The Company targets its services to small businesses and home offices, and currently has partnerships with companies including Microsoft, CompUSA, EarthLink, HP, NCR, Office Depot, Vendio and the U.S. Postal Service.

PhotoStamps is a patented Stamps.com product that couples the technology of PC Postage with the simplicity of a web–based image upload and order process. PhotoStamps was extremely popular during the initial market test which was announced on Aug. 10, and ran through Sept. 30, 2004. During that 7 1/2 week period, more than 2.75 million individual PhotoStamps were ordered. PhotoStamps is now available under authorization of the U.S. Postal Service for a second, year–long market test which began on May 17, 2005.

“Safe Harbor” Statement under the Private Securities Litigation Reform Act of 1995: This release includes forward–looking statements about our anticipated results and available products that involve risks and uncertainties. Important factors, including the Company’s ability to complete and ship its products and obtain or maintain 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, 2004, Quarterly Reports on Form 10–Q, and 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, the Stamps.com logo and PhotoStamps are trademarks or registered trademarks of Stamps.com Inc. All other brands and names are property of their respective owners.