Courier IMAP is very reliable and standards-compliant.
The problem with Courier IMAP is the support community. When I researched it I found several people complaining about how the lead developer(s) ran the project. So I avoided it.
I ended up using maildrop, which is a component of Courier, and after contributing documentation and attempting to open a discussion of how a certain feature worked, I found the lead developer to be very closed to new ideas.
Dovecot is the complete opposite. It may not be the most polished solution, but the lead developer is competent and very open to new ideas and contributors.
People also like Cyrus and Binc...
Cyrus appears to be often recommended for high volume sites. It apparently has its own mail storage format and thus requires a bit more work to integrate.
Binc is in the same class as Dovecot, but has been around longer. I liked the philosophy expressed by Dovecot's author and some of its features better, so I gave it a shot first and it worked to my satisfaction.
-Tom _______________________________________________ Boston-pm mailing list [EMAIL PROTECTED] http://mail.pm.org/mailman/listinfo/boston-pm
