I run my own email server as well, and I've been using postfix/dovecot quite happily with zero issues. I've been contemplating opensmtpd as well, though I'm not sure where that stands when it comes to being run in production environments. Also, reconfiguring mailservers is a PITA, I'd rather stick with a setup which just works.
Could someone explain why one might want to use qmail (or this, its newest incarnation) over postfix or opensmtpd? Would I gain anything by shifting to qmail or opensmtpd?
Could someone explain why one might want to use qmail (or this, its newest incarnation) over postfix or opensmtpd? Would I gain anything by shifting to qmail or opensmtpd?