Hi, I wonder what the Postfix community thinks or plans to do according to this standard that is being written: https://datatracker.ietf.org/doc/draft-margolis-smtp-sts/?include_text=1
I personally find this quite interesting. What I wonder is, if maybe we have now reached a similar point of complexity for policy decisions when delivering mails, as it was the case for incoming mails when policy delegation for the SMTP server was introduced. Could a similar policy lookup protocol be implemented for the SMTP client and things like SMTP STS be implemented as a policy daemon? The policy lookup could take place right after the SMTP handshake. Cheers David