ARC lets the recipient look back and retroactively do the filtering the list didn't.
The concern about the creator of an ARC chain spoofing the purported origin of a message is valid. The above statement is correct, but needs to be augmented:
Based on the reputation of the creator of an ARC chain, ARC let's the receiving filtering engine do filtering based on the proffered address of the originator.
(Recipient end-users are irrelevant to this process.) d/ -- Dave Crocker Brandenburg InternetWorking bbiw.net _______________________________________________ dmarc mailing list [email protected] https://www.ietf.org/mailman/listinfo/dmarc
