This looks fantastic, however having skimmed throught the docs I get impression that Zimbra needs to be installed on a fresh Linux install.
We currently run a RH EL4 server with 60gb spare disc space, 1gig ram and 2.8 ghz CPU, problem is that it runs Plesk. We use MySql with 7 databases in use, Qmail with 150 users.
Currently users are accessing their email via eGroupware.
So can Zimbra be installed without having to disable MySql and Apache?
Can we run more than 1 instance of mysqld?
Or would I have to back up all websites and web CMS (Mambo, moodle) and their respective databases , disable Qmail & courier then reestablish the site and databases on Zimbra's Mysql and Apache?
Plesk relies on MySql so the existing one would need to be retained as is.
Any advice would be greatly appreciated.