If I understand correctly the Postfix manual, "reject_sender_login_mismatch"
is equivalent of adding these 2 rules instead: "reject_unauthenticated_sender_login_mismatch" "reject_authenticated_sender_login_mismatch" right? If I use SASL authentication, which one is recommended to use? for example, only "reject_authenticated..." or "reject_unauthenticated..." or "reject_sender..."? Thank you.