Abi Askushi skrev den 2017-07-14 11:28:
Do you have any other suggestion?
i do it with reject_sender_access from virtual alias maps after permit_sasl_authenticated
real users can still use there sender alias without any issue, but no forged is now possible
tested it with postfixadmin as backend it was a simple one more mysql map to make it, but it would work with any maps postfix support
