>>>> master.cf: >>>> >>>> submission inet n - n - - smtpd >>>> -o smtpd_sasl_auth_enable=yes >>>> -o >>>> smtpd_recipient_restrictions=permit_mynetworks,permit_sasl_authenticated,reject >>>> >> >> You should also have: >> >> smtpd_tls_security_level=encrypt >> >> for the submission service... >> > > > Normally yes, but OP is using submission for unencrypted, > unauthenticated local mail. > > I also suggested he explicitly set -o smtpd_tls_auth_only=yes and > add reject_plaintext_session, but apparently he knows better.
Alright, I thought my config rendered those unnecessary/redundant, but apparently not? - Grant