Zimbra is a server and client technology for enterprise messaging and collaboration.

Zimbra Collaboration Suite project is a client/server technology for enterprise messaging and collaboration.

Zimbra delivers innovation for both the administrator and the end-user as well as compatibility with existing infrastructure and applications (both open source and proprietary).

The Zimbra Collaboration Suite provides support for email, contacts, and group calendaring, and consists of a server and client.

Here are some key features of "Zimbra Collaboration Suite":

Administrator Benefits

· Online move, backup and recovery of individual or a group of mailboxes
· Compatibility with Active Directory and existing LDAP directories
· Native hierarchical storage management and clustering
· Web services integration with existing enterprise applications
· Integrated anti-spam and anti-virus

End-User Benefits

· Browser based client with search, shared calendar and mail that is integrated with contacts and calendar
· Support for Outlook: calendar, mail, contacts and offline mode
· Support for mobile devices: Blackberry, Treo and etc
· Support of Windows, Apple and Linux computer.

What's New in 4.5.6 Stable Release:

· Support for an automated MySQL database corruption check that will send a notification to the admin.
· Spam training has been enhanced by allowing programmatic scanning of folders without requiring a password.
· Admins can get backup and restore complete notifications sent via email.
· .Doc and .pdf files open correctly in Zimbra Web Client.
· iSync will not duplicate the calendar, and iSync Connector works correctly with Mac OS X 10.4.10.
· Servers automatically start after a ZCS upgrade.
· Web-based cross-mailbox discovery is available for the optional Zimbra Archiving and Discovery module.