Press Release

Media Contact:
Amy Swanson
OutCast Communications
(415) 392-8282
aswanson@outcastpr.com

Zimbra Wins SIIA CODiE Award for Best Communication or Collaboration Solution

Open Source Collaboration Suite Honored for Excellence in Achievement and Vision in Software

SAN MATEO, CA – May 23, 2006 – Zimbra (http://www.zimbra.com), a leader in open source, next-generation collaboration and messaging software, today announced that its flagship product, the Zimbra Collaboration Suite (ZCS), has been named Best Communication or Collaboration Solution by the Software & Information Industry Association (SIIA). This award recognizes how Zimbra has brought the long-stagnant e-mail market back to life through its delivery of an effective e-mail server, a collaborative calendar system and an innovative, AJAX-based user interface.

"This 21st Annual CODiE Awards continues our tradition of celebrating the best products in the software and information industry," said Ken Wasch, president of SIIA. "Being a winner among so many fine nominees is a solid achievement. I congratulate all of the companies."

"We are honored to be recognized by our peers, among a prestigious group of technology innovators including Adobe, Intuit, Amazon, and salesforce.com," said Satish Dharmaraj, co-founder and CEO of Zimbra. "Zimbra is honored to have delivered our innovation to hundreds of thousands of users and remains committed to raising the bar for collaboration, and investing in the open source community."

Zimbra's flagship product, the Zimbra Collaboration Suite (ZCS) is an open source, enterprise collaboration system that reduces the cost and complexity of collaboration, and changes the way users and administrators interact with their e-mail and calendaring applications. On the back end, the ZCS includes integrated search, single-copy mail store, discovery, anti-spam and anti-virus/security capabilities; on the front end, a rich, full-featured, AJAX-based Web client brings e-mail and calendar items to life through Web mash-ups.

The CODiE Awards program is the only peer recognition program in the software and information industry, providing a unique opportunity for companies to compete for the praise of their competitors. The SIIA is the principal trade association for the software and digital content industry. SIIA provides global services in government relations, business development, corporate education and intellectual property protection to the leading companies that are setting the pace for the digital age.

About Zimbra

Zimbra dramatically improves the messaging and collaboration experience for administrators and users. Zimbra achieves this by investing in innovation, open source, and compatibility with existing applications and systems. The Zimbra Collaboration Suite supports Windows, Apple, and Linux platforms and works with Microsoft Outlook as well as other PC and mobile clients. Additionally, Zimbra provides an AJAX browser based client that delivers rich, secure, anytime access for anyone within the enterprise. More information and software downloads are available at www.zimbra.com.

About SIIA

The Software & Information Industry Association (SIIA) is the principal trade association for the software and digital content industry. SIIA provides global services in government relations, business development, corporate education and intellectual property protection to more than 800 leading software and information companies. For further information, http://www.siia.net.