Press Release

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OutCast Communications
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Zimbra Wins Best Messaging Solution at LinuxWorld Conference and Expo

Modern, Innovative Open Source AJAX-Based Messaging and Collaboration Suite Takes Top Honors

SAN MATEO, Calif., Aug. 24 -- Zimbra, the leader in open source, next-generation collaboration and messaging software, was awarded the Linux Journal Product Excellence Award for Best Messaging Solution for its groundbreaking Zimbra Collaboration Suite (ZCS) 4.0, which was recently introduced at the LinuxWorld Conference and Expo in San Francisco.

"We are thrilled that Linux Journal and LinuxWorld have recognized Zimbra and the hundreds of thousands of users in the Zimbra community at the open- source industry's highest profile event," said Satish Dharmaraj, co-founder and CEO of Zimbra. "Organizations are demanding changes in the way users and administrators interact with their e-mail and calendaring applications, and we look forward to driving further open-source innovation in the messaging and collaboration market."

ZCS 4.0 features the launch of Zimbra Documents, a powerful Web 2.0 application for securely creating, sharing and publishing documents, spreadsheets and folders within an enterprise or organization, across organizational boundaries, among friends and family, or even across the Internet. Other new features in ZCS 4.0 include "over the air" synchronization for a wide range of mobile devices; the ability to customize or "re-skin" the Zimbra user interface with your own brand, look and feel; and easier management of large-scale enterprise, service provider, academic and government deployments.

About Linux Journal

Linux Journal is the premier Linux magazine, dedicated to serving the Linux community and promoting the use of Linux world-wide. A monthly periodical, Linux Journal is currently celebrating its twelfth year of publication. Linux Journal may be purchased at all major bookstores and newsstands and may also be ordered by calling 1-888-66-LINUX, sending e-mail to subs@ssc.com or visiting http://www.LinuxJournal.com.

About LinuxWorld Conference & Expo

LinuxWorld Conference & Expo is the premier event exclusively focused on Linux and open source solutions. As the world's most comprehensive marketplace for open source products and services, LinuxWorld provides business decision- makers with information and resources to implement Linux and open source solutions into business infrastructure and enterprise networks. For more information visit the LinuxWorld Conference & Expo Web site at http://www.linuxworldexpo.com, or call 800-657-1474. For exhibiting opportunities, please contact Ellen Boland at 508-988-7830 or ellen_boland@idg.com or Christian Montminy at 508-424-4852 or christian_montminy@idg.com.

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. The Zimbra Collaboration Suite was voted Best Enterprise Project in the inaugural 2006 SourceForge.net Community Choice Awards and received a SIIA Codie award for Best Communication or Collaboration Solution. More information and software downloads are available at http://www.zimbra.com.

NOTE: Zimbra is a trademark of Zimbra, Inc. All other trademarks belong to their respective companies.