Zimbra Collaboration Server Open Source Edition is a promising low-end package
Posted by: Anonymous
on November 06, 2008 01:15 PM
Zimbra Open Source edition does allow you to have multi-server installations and separate the core functions to multiple servers allowing very large installations. Zimbra only supports clustering with Red Hat Cluster Server which is supported by the Network edition and Open Source edition. As for backup, there are some very good community written backup/restore scripts that would satisfy a large number of production backup requirement. I have been using Zimbra for three years (since the beginning) and love it!