Press Release

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OutCast Communications
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Zimbra Announces Universal Application Support for New Intel-Based Macs

Latest version of Collaboration Suite for Mac OS X runs up to 5x faster on Intel-based Macs

SAN MATEO, CA - April 10, 2006 - Zimbra, a leader in open source, next-generation collaboration and messaging software, today announced a Universal version of its Zimbra Collaboration Suite (ZCS) and ZCS Connector for Apple iSync to support both PowerPC and Intel-based Macs.

"The launch of ZCS for Mac OS X in January 2006 prompted a tremendously positive response from Zimbra community members, and based on their overwhelming feedback, we're pleased to announce Universal support for Apple's PowerPC and Intel-based Macs," said Satish Dharmaraj, Zimbra CEO. "Zimbra users have been quick to test ZCS out on the new Intel-based Macs and there is a lot of excitement about the significantly increased performance."

"The speed of our new machines and the simplicity of our Xcode tools has given Apple developers the opportunity to quickly deliver powerful Universal versions of their applications," said Ron Okamoto, VP of Worldwide developer Relations at Apple. "We're excited to see Zimbra develop a Universal application that delivers a powerful, flexible collaboration solution for Mac workgroups."

ZCS for Mac OS X is an open-source, enterprise-grade email and collaboration server and application that includes support for iCal, Apple Mail clients and Apple Xsan storage. In testing ZCS for Mac OS X, Zimbra has achieved speeds up to five times faster on the Intel-based Mac clients.

Pricing and Availability

The ZCS 3.0 Open Source Edition for Mac OS X Tiger is free, and the commercially-supported Network Edition for Mac OS X Tiger is available for $28/mailbox/year, which includes full product support as well as software subscriptions to new releases, updates and patches. Both editions can be downloaded at http://www.zimbra.com/.Users can participate in the Zimbra Community and provide feedback at http://www.zimbra.com/forums/

About Zimbra:

Zimbra dramatically improves the messaging and collaboration experience for administrators and users. Zimbra's goal is to achieve 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.