Going to be upgrading our mail server in the near future and also moving over our antispam/antivirus onto the same box aswell.
I am looking for suggestions as to what to run on the server for offering webmail, calendar, contacts etc...
The server will be running :-
Cyrus IMAP - Same as existing server and is what I know so can move across mail and settings easier
Postfix - Its what I know and currently use on existing spam filter
Mailscanner with spamassassin and clamav - Current spam filter setup which works very well
I have looked at Horde which looks very good. Also looked at Zimbra but although it looks good it takes over all aspects of the mail handling so we would need to run a virtual machine to handle the spam and antivirus solution we have which is not ideal so I dont think I will be using it.
Any other packages I should take a look at?
We will mostly be using Thunderbird as an email client with some users forced to use Outlook due to using Goldmine.
Any comments on calendar, contacts syncronisation between the client and server would be welcome.
Likewise for any sync between Nokia mobile phones (6800 and E51 mostly) in Thunderbird.