Over 25 years, Postfix has accumulated some features that are essentially obsolete.
- permit_mx_backup is fundamentally incompatible with recipient address validation. There is no way to work around that with reject_unverified_recipient, because that requires that a domain is reachable, and in that case permit_mx_backup is not needed. Log a deprecation warning with compatibility_levels>=3.9. - masquerade_domains complicates table-driven address validation. Log a deprecation warning with compatibility_levels>=3.9. - disable_dns_lookups can be migrated to smtp_dns_support_level which implements a superset of the functionality. Log a deprecation warning with compatibility_levels>=3.9. What else needs to go? Wietse _______________________________________________ Postfix-users mailing list -- postfix-users@postfix.org To unsubscribe send an email to postfix-users-le...@postfix.org