Callum Lerwick writes:
> Whats wrong with courier?

Courier violates the Maildir specification and can corrupt certain messages:

http://www.ornl.gov/lists/mailing-lists/qmail/2003/02/msg00835.html

This isn't a problem if your messages arrive ONLY via SMTP, but could be a
problem for other delivery methods including local injection (i.e. the
sendmail wrapper).

I still use Courier because I don't want to risk breaking a production
system (all my messages arrive via SMTP), but if I was setting up a new
system, I would use Binc IMAP.

> The only thing I can't figure out is how to make courier require
> encryption on remote connections, but not on loopback

Easy.  Use stunnel for encryption.  Run Courier on 127.0.0.1 and have
stunnel wrap it on the public IP address.

-- 
David Phillips <david at acz.org>
http://david.acz.org/


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