OK, so (despite running -stable, not -current) smtpd(8) seems to be working well for me in local testing. I love the compact configuration system. There may come a time when I need more flexibility to handle corner cases, but until then I'll gladly use an MTA that only needs ~10 lines of config file!
I wish to integrate SpamAssassin before moving my MX records. Is it correct to say that SpamAssassin can be used as a filter, i.e. it takes the unchanged message on stdin and emits a changed message on stdout? It seems obvious that I can tie smtpd(8) and spamc(1L) together with procmail(1L); smtpd(8) seems to have no issue whatsoever with using procmail as its MDA. I then would configure procmail to invoke SpamAssassin in the "site-wide" scenario that is reasonably well- documented. Is there a better way? Can I skip procmail? (Do I want to? Procmail also seems to be the only way to have Maildir-format for some users and mbox-format for others, when using smtpd(8).) Is there any (useful) way to invoke spamc(1L) as an MDA? FYI: For those of you who are wondering why I'm not just slapping this together and hoping for the best, i.e. why do I keep whining on -misc when I already seem to know the answers... as soon as I change the MX record, this server will be immediately hit with peaks of up to ~ 2kmsgs/hr and will sustain constant levels of ~10kmsgs/day with occasional peaks to ~20kmsgs/day. Approximately 50 msgs/day (0.5%) of that is *not* spam. Thanks in advance for any suggestions or advice. -Adam Thompson
