We’re still running Zimbra at work and it’s still providing us with what we need as a collaboration suite. Unfortunately, we’re running on Leopard Server and still stuck on version 5 due to Apple’s unwillingness to fix the bugs in their server software.
Which is why we’ll be migrating from the Xserve to an Ubuntu server*. I have a conference call with Zimbra’s Professional Services people to begin the planning of the migration. I put the call into them due to the fact that we’re migrating hardware and software at the same time, as well as upgrading the storage system that mail resides on. Looking forward to the challenge and keeping my fingers crossed that all goes well.