I have successfully installed OS Zimbra, and it seems to work
Two of the features that I want to use are Branding and Domain level administration. This brings up a couple of questions;
1) The license fee appears to be for a specific period of time. Does Zimbra die, or do I lose features if I don't pay up? Or do I just lose the ability to call support and get new versions? (I read a cost comparison of Zimbra vs Exchange, and after 3 years Exchange was cheaper)
2) As I mentioned I have OS Zimbra installed and two domains ported to it, if I want to upgrade to Standard Edition (I think that has the features I need) is their a simple migration path, or will I need to reconfigure everything?
We run a small ISP and due to competion from folks like yahoo can realistically charge $2 per month per user account, from that we need to pay for our overhead, and Zimbra at $1.50 per user per month (standard Edition pricing, $2.33 for professional), this leaves somewhere between $0 and a loss per e-mail user we support.
There has got to be a better way.