STAMPS.COM INTEGRATES WITH MAGENTO ECOMMERCE PLATFORM®

LOS ANGELES-August 17, 2010-Stamps.com® (Nasdaq:STMP), the leading provider of USPS® postage online and shipping software solutions to approximately 400,000 customers, today announced a new integration and partnership with Magento®, the global open source e-commerce platform provider. The integration is available at no additional charge to new and existing Stamps.com customers.

Stamps.com’s integration with Magento enables Magento merchants to batch print up to 1,000 pre-paid USPS shipping labels for any mail class, including Media Mail® and First Class International Mail®. In addition, Stamps.com automatically posts order status details such as tracking number, ship date and mail class back to the Magento merchant’s database.

With the Stamps.com integration, Magento’s customer base of more than 60,000 merchants will be able to manage and fulfill orders from eBay®, Paypal® Shops, Yahoo! Merchant, Google Checkout™ and their own web stores from one easy-to-use interface.

“Magento clients are eager to use cutting-edge tools to gain a competitive advantage,” said Roy Rubin, CEO of Magento.  “Efficiently processing and shipping orders is a huge part of what makes an online retailer successful, which is why we are so pleased to offer this integration and partnership with Stamps.com.”

“Magento’s open source platform gives merchants complete flexibility and control to create sites that deliver an outstanding user experience. The Stamps.com integration gives them greater control and flexibility over their shipping processes to ensure that the total customer experience isn’t marred by processing inefficiency or shipping delay,” said Stamps.com president and CEO Ken McBride.

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 targets its services to small businesses and home offices, and currently has PC Postage partnerships with Avery Dennison, Microsoft, HP, Office Depot, USPS and others.

About Magento
Magento is a feature-rich, professional Open Source eCommerce platform solution that offers merchants complete flexibility and control over the presentation, content, and functionality of their online channel. Magento is designed to be completely scalable and is backed by an extensive support network. For more information about Magento, visit http://www.MagentoCommerce.com.

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

Press Contact:
Dena Cook
Brew Media Relations
(310) 526-8576
[email protected]