If they would provide a way to register a mailing list and the servers from which it comes, and allow DMARC exceptions for traffic from those registered lists, your situation would be much easier?
If large mail providers were willing to whitelist known mailing lists we wouldn't need ARC.
See previous messages for why that isn't sufficient. Regards, John Levine, jo...@taugh.com, Taughannock Networks, Trumansburg NY Please consider the environment before reading this e-mail. https://jl.ly _______________________________________________ dmarc mailing list dmarc@ietf.org https://www.ietf.org/mailman/listinfo/dmarc