Press Release

Zimbra Expands to Tens of Thousands of Organizations Worldwide

Direct and Software-as-a-Service Offerings Reach More Than Eight Million Paid Mailboxes in 45 Countries

SAN MATEO, Calif. - May 21, 2007 - Zimbra, the leader in open source, next-generation collaboration and messaging software, today announced that its remarkable momentum continued through the first quarter of 2007. With more than two million mailboxes added in the first quarter, Zimbra now serves more than eight million paid mailboxes worldwide. In addition to growing its direct, on-premises customer base by nearly 70 percent in the first quarter, Zimbra has added more than 80 new partners including VARs, distributors, system integrators, and hosted service providers. Together, Zimbra and its partners serve customers in more than a dozen vertical markets.

"Users and enterprises demanding flexible, innovative collaboration alternatives are driving our tremendous worldwide growth across industries ranging from healthcare to government to consumer ISPs," said Satish Dharmaraj, Zimbra co-founder and CEO. "With the support and feedback of the Zimbra community, we've achieved several huge milestones already in the first quarter of 2007, including the launch of Zimbra Desktop, allowing universal access to Zimbra's rich Web 2.0 collaboration experience."

Worldwide Momentum

Zimbra's global growth includes momentum in the EMEA and Asia Pacific regions, which represent more than 30 percent of new customers this year. Zimbra's customers span 45 countries and six continents, and the Zimbra solution has been translated into 18 languages.

"Our millions of broadband customers demand a world-class Internet experience, and our partnership with Zimbra delivers an innovative Web 2.0 collaboration service with advanced search capabilities, support for large mailboxes, integrated virus/spam protection, and differentiated tiers for premium users," said Mukul Sood, VP, Content and Applications for VSNL (a Tata company). "Zimbra gives us the opportunity to create a branded experience that integrates into our portal and provides multiple monetization options."

Zimbra serves more than 12 vertical industries including advertising/media; engineering; education; financial services; local, federal and international government; healthcare; high technology; non-profit; real-estate; retail; transportation; and service providers.

"As Europe's leading integrated brand communications agency, we needed a flexible collaboration solution that would support multiple operating systems and email clients while offering a world-class user experience of its own," said David Smith, CTO at Gyro International. "Zimbra meets all the sophisticated user requirements of today's global enterprises."

Recent Global Service Provider Partnerships:
VSNL, a Tata company (India)
WestNet (Australia)
WorkNet, Inc
Domino (Italy)

Recent Education and Government Deployments:
Georgia Institute of Technology
University of Wisconsin, Milwaukee
University of California, Los Angeles
Ville de Dieppe, local government, France

Recent Enterprise Deployments:
Boston Engineering Corporation
Gyro International (UK)
Kemper Valve & Fittings, Inc.
MySQL AB
Trinity Health Group
Vec Financial

"Microsoft Exchange and Zimbra were among many platforms we evaluated in choosing the right collaboration solution," said Matthew Schrock, IT Director at Trinity Health Group. "The complex, proprietary architectures offered by most vendors did not serve our users' needs. Zimbra offers innovative features and improved productivity in a suite that's easy to deploy, use, manage and extend."

"After a rigorous RFP process and vendor review followed by campus feedback via surveys, meetings, demonstrations and usability testing, Zimbra emerged as the clear favorite among faculty, staff and students," said Bruce Maas, Interim CIO of the University of Wisconsin-Milwaukee. "Our goal was to select an e-mail and calendar solution that would meet the needs of our diverse campus constituency, especially students, be cost-effective and work within our infrastructure. We are confident that the Zimbra Collaboration Suite will meet our needs for many years."

Community Growth and Industry Partnerships

Zimbra's emphasis on and responsiveness to its community is illustrated by the nearly 8,000 active members in Zimbra's forums who have cast more than 2,000 new votes for product enhancements this year. To date, the Open Source edition of the Zimbra Collaboration Suite has been downloaded hundreds of thousands of times.

Zimbra has established strategic partnerships with a wide variety of technology leaders, including Network Appliance, Red Hat, Ubuntu, Novell's SUSE Linux.

Microsoft recently joined the OpenAJAX Alliance, which Zimbra co-founded and launched in early 2006 with BEA, Google, IBM, Oracle, Red Hat, Yahoo! and Zend.

Supported Platforms

The ZCS server is available for popular operating systems: Red Hat Enterprise Linux, Ubuntu, Fedora, Mandriva, Mac OS X, Debian and SUSE Linux. Supported browsers include Mozilla's Firefox and Microsoft's Internet Explorer on PCs, Macintosh and Linux based systems.

Pricing and Availability

The ZCS 4.5 Open Source Edition is free. The commercially-supported ZCS Network Edition is available for a 60-day free trial on the Zimbra Website. ZCS 4.5 Network Edition pricing starts at $25/mailbox/year for a minimum of 25 users for the Standard Edition, which includes product support as well as software subscriptions to new releases, updates and patches. Additional discounts are available for larger organizations.

ZCS is available on-premises or as a hosted service; for information about Zimbra deployment as a service or Zimbra's hosting partner program, please visit http://www.zimbra.com/partners/. Users can discuss topics related to the Zimbra Collaboration Suite and provide feedback at http://www.zimbra.com/forums/.

About Zimbra

Zimbra is the leading provider of open source collaboration and messaging software for enterprises, service providers, educational institutions, and government agencies. The Zimbra Collaboration Suite features an AJAX Administrative user interface and browser based client to dramatically improve the messaging and collaboration experience for administrators and end users alike. Zimbra supports Windows, Apple, and Linux desktops and works with Microsoft Outlook as well as today's most essential PC and mobile devices including the Blackberry, Treo and Motorola Q. Additionally, Zimbra supports popular server operating systems such as Red Hat, Mac, Ubuntu, SUSE, Fedora and more. The Zimbra Collaboration Suite was voted Best Enterprise Project in the inaugural 2006 SourceForge.net Community Choice Awards, received a SIIA Codie award for Best Communication or Collaboration Solution and won InfoWorld's 2007 Application Innovator Technology of the Year Award. More information and software downloads are available at http://www.zimbra.com/.