> With regard to disabling AUTH on port 25 only - we need to let AUTH available > on submission port (587) > what exactly should I do? Would it be enough to remove > "permit_sasl_authenticated" from "smtpd_client_restrictions" in main.cf?
main.cf: smtpd_sasl_auth_enable = no master.cf: submission inet n - n - - smtpd -o smtpd_sasl_auth_enable=yes