My experience has been very positive.
I've been using Zimbra since last November or so. Have been really liking it.
It is a bit resource intensive, so if you are using it on a multipurpose server that is running your website, samba etc. I recommend 2Gb of RAM or more.
I run it on CentOS 4.4 which I use for my website, database, samba and jabber server. Haven't had any conflicts or resource problems. My users love it and show it to whoever they can.
Of all of the open-source workgroup suites I've tried (and I've tried them all!) the folks at Zimbra are the only ones who "get it". Zimbra is easy to install, maintain and use. Zimbra is definitely moving in the right direction and each new release gets better and better.
The support forum is outstanding as well. Very few open-source projects I've come accross have a more active and enthusiastic user community. The Zimbra employees that peruse the forums are extremely helpful and quick with answers. I can't say enough about the support staff there at Zimbra.
Good luck with your investigation, I'm sure you'll find the information you need here in the forums.
jimbo  |