I am currently researching solution for email servers and collaboration for my small team. We have just started company, and we have very tight budget. Currently we have GoogleApps setup, but though Google email is sufficient for us, we would like to have better collaboration options.
Friend of mine suggested Zimbra as possible solution, and I have reviewed information on site. But I have few question I hope someone will have time to answer.
I have seen minimum requirements on site, but I would like to know what is bare minimum that can just run Zimbra. We are planing to buy VPS.net cloud and install Zimbra there. Does anybody knows will it run on 1 or 2 nodes?
Also, I have seen that Domain Administration is not available in open-source version. Could anybody point me to see what is it?