Q3 Earnings Call Invitation

This is an invitation to join the Stamps.com Third Quarter 2004 Financial Results Conference Call. The call will take place Thursday, October 21, 2004 from 2:00pm to 3:00pm ET. The dial-in number is (913) 981-5510 (no passcode necessary). Additionally, the call will be web cast via the Investor Relations website at http://investor.stamps.com. The Third Quarter Earnings press release will precede the Earnings Call at 8am ET on October 21, 2004.

If you have any questions, please call Stamps.com Investor Relations at (310) 482-5830 or e-mail us at [email protected].

We look forward to your participation!

This message is not an offer to sell securities and is not soliciting an offer to buy securities.

Stamps.com Investor Contact:

Austin Rettig
Director, Investor Relations
(310) 482-5822