On Oct 15, 2019, at 1:27 AM, Julien Michaux <jul...@michaux.name> wrote: > smtpd_helo_restrictions = > permit_mynetworks,
> smtpd_recipient_restrictions = > permit_mynetworks, > smtp_sender_restrictions = > permit_mynetworks, > smtp_helo_restrictions = > permit_mynetworks, > smtp_recipient_restrictions = > permit_mynetworks, (Etc etc) There is no instance of permit_mynetworks in my main.cf not in my master.cf file. Something on your networks that you have implicitly trusted is misbehaving. There is no reason to trust your network, instead make sure everything uses authentication.
