I am thinking about moving to Zimbra, but want to test it first. I currently have about 150 email users in a stock OS X Server 10.5.7 situation. I am running both POP and IMAP. Most all of my users are using Entourage configured for POP access now. Here are some questions:
Can I test Zimbra with a few users for a while?
Can I install Zimbra on the same physical box that is my mail server right now?
If things go well and I start to migrate other users to Zimbra can I do them a little at a time so I can reconfigure their clients to use IMAP?
Any other commentary would be appreciated.