Why is the state of the message-id important? You have mentioned it twice.
It is not a required header. It often uses a domain portion that is not a registered name. The recipient has no way to know whether or not it has been changed during forwarding. I have tried to imagine a way to use message-id in message evaluation, but have given up.
_______________________________________________ dmarc mailing list [email protected] https://www.ietf.org/mailman/listinfo/dmarc
