[Sorry for the cross-post - I think it's applicable to both -isp and
-user.]
I need to offer imap, imapssl and pop3ssl services. FWIW, imap would be
localhost only, but -ssl services would be publically accessible.
My reading thus far leads me towards Courier-imap with Exim 4
backported to stable so I can interface with ClamAV, but feel free to
point out something important that I've missed.
Do I need to have a different instance of the server running for each
protocol? i.e. one listening on each port that the three services use
as standard?
Is there a server that would do the job with just one instance listening
on all three ports? Would there be any advantages or disadvantages to
this? I'm thinking locking/concurrency/that-sorta-thing.
How do you deal with this situation? Are there any gotchas I need to
know about? I'm guessing that using Maildirs will alleviate many of the
problems that mboxes would create ...
Any pointers/suggestions/cluebats appreciated!
jc