What is the crowd's opinion of Courier-MTA?

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I was going to recommend procmail, but apparently it has not been maintained in a very long time. It looks like a lot of people recommend using maildrop or sieve instead.

Interesting...I guess I package ASSP, Courier mail suite, including SMTP/IMAP, and Rainloop Webmail for "Mail in a box".

I could do Postfix/Dovecot, but my roots go back to qmail, and Courier has been most compatible with previously used qmail options..

I would definitely suggest using ASSP on the outside of the SMTP server instead of Spamassassin or filtering inside or after SMTP server.