David Jones skrev den 2018-01-01 15:59:
There is no way that most of us on this mailing list can be as strict or our customers would complain constantly about missing email.
postfix add rfc message-id on mails that dont follow rfcs, so first mta (postfix here) hiddes mua's fault not following rfc's, i dont know other mta's on how thay help spammers
