STAMPS.COM LAUNCHES PC POSTAGE VERSION 10.1, ADDS USPS SERVICES TO HELP BUSINESS OWNERS AND SHIPPERS SAVE TIME AND MONEY

EL SEGUNDO, Calif. – March 26, 2013 – Stamps.com® (Nasdaq:STMP), the leading provider of USPS postage online and shipping software to over 400,000 customers, today announced that it has launched PC Postage Version 10.1 software. The software introduces new USPS products and services that increase cost savings and time efficiency for small business owners and shippers. Stamps.com customers can download PC Postage Version 10.1 for free at http://sdcmainprod.wpengine.com/download/.

“Stamps.com PC Postage Version 10.1 gives customers access to more USPS products, services and rates,” said Chairman and CEO Ken McBride. “With competitive new mailing and shipping options, small business owners and shippers can handpick what works best for their business to lower costs and improve performance.”

Key Features for Stamps.com PC Postage Version 10.1:

Postage Printing for Parcel Select
Customers can now print postage for Parcel Select, a USPS mail class for heavier items that do not need time-specific delivery. It has the lowest USPS rates for ground delivery, and when compared to Standard Post, it offers cost savings for packages under 28 lbs. It also includes free Delivery Confirmation and package delivery within 2-8 days.

Postage Printing for Express Mail Flat Rate Padded Envelopes
Customers can now print postage for Express Mail Flat Rate Padded Envelopes. These envelopes offer savings when used in place of traditional boxes. Express Mail Flat Rate Padded Envelopes are available for one low flat rate of $18.11 when purchased online, guarantee overnight delivery to most U.S. addresses, and feature extra padding for protection.

Electronic Return Receipts
Customers can now receive Electronic Return Receipts by email. Each receipt contains an image of a signature, which is written by the recipient of Certified Mail®. This feature provides proof of delivery faster than the traditional method of mailing a hard copy.

Hidden Postage for International Shipments
With a few clicks, customers can now hide the postage value on all customs forms for packages traveling to international destinations.

New and existing customers can download Stamps.com Version 10.1 for free at http://sdcmainprod.wpengine.com/download.

About Stamps.com
Stamps.com (Nasdaq:STMP) is a leading provider of Internet-based postage services. Stamps.com’s service enables small businesses, high volume shippers, enterprise shippers, and consumers to print U.S. Postal Service-approved postage with just a PC, printer and Internet connection, right from their home or office. The Company currently has PC Postage partnerships with Avery Dennison, Microsoft, HP, the U.S. Postal Service and others.

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.

Stamps.com Investor Contact:
Stamps.com Investor Relations
(310) 482-5830
http://investor.stamps.com

Press Contact:
Eric Nash
Stamps.com
(310) 482-5942
[email protected]