This is merely an attempt to find a mechanism whereby DMARC and MLMs could cooperate, up to the point where subscriber Recipient validators could honour an Author domain's p=reject, without removing the original author's mailbox from the From header.
Unless I've missed something, I don't see how this solves any of the well known problems. Bad guys can do whatever lists do, so you need to know whether to trust the list, at which point you might as well just trust the list and not mess around with the headers.
Also, if you want to go down the sender + list route, how about that double DKIM signing hack? It has the advantage that it's invisible to MUAs and doesn't affect reciepient MTAs beyond the DKIM validation code which probably comes from a library that Murray wrote.
Regards, John Levine, [email protected], Taughannock Networks, Trumansburg NY Please consider the environment before reading this e-mail. _______________________________________________ dmarc mailing list [email protected] https://www.ietf.org/mailman/listinfo/dmarc
