>> >> Before I pollute the mailing list with all the gory details. Is this a >> known/expected/ever seen behaviour? > > SRS rewriting should not operate on ANY header addresses. It is designed, > like SPF, to operate on the SMTP envelope sender. > > It is normal for automated messages such as bounces to have a null envelope > sender, so it is possible to pass a null address to postsrsd. > My abuse of email jargon and misunderstanding. Sorry. I must be wrong about Message-id, then. I’ll check.
So, if there’s no sender in the envelope, the email cannot be automatically forwarded to some mail providers (notably gmail in this case), and the user of the forward address is unaware of such response? In the case of this source, it’s an automated reply, so the end email address is unaware of the successful or failed completion of the message exchange. Is that how forwarding’s supposed to work?
