I've been playing with zimbra from early 4.0 builds and genearlly been quite happy with it, but something about 5.0.2, just doesnt work right. Quite honestly you may save your self a LOT of frustration stayin with 4.5 series.
1) Been through all the trouble shooting restarting/reconfiguring logger/repairing logger db, to complete delete and rebuild logger db... still doesnt work. Its jsut broke.
2) Random outages that prevent logins... (used to throw exceptions in mailbox log saying too many files beign used etc. but fixed that problem with ulimit) Now no error messages at all. Basically user sends password to pop, with OK+ response, then when trying to throw the password, it just times out etc. No errors to Mailboxd lgo, or /var/log/zimbra.
So, basically where everything stands, no stats no information no graphs or anything like that, and every few hours I have to restart zimbra services with nothing to hand devs to say this exception is occuring. Zimbra++