I've a problem with emails that are being sent by postfix.
When user.domain (with eamil set as email@example.com) sends an email the, From Address is malformed
the address that appear in From, Return-Path and smtp.mail, is set to:
when the user receiving the email try to reply , the mail server returns an error because the email does not exists and is not
Recipient address rejected: User unknown in virtual alias table (state 13).
how to fix this issue ?