In your proposal, what happens if you find a record that specifies aspf=r; the From header is aa.bb.cc.de.us, and the Envelope From is ee.ff.gg.hi.us? How do you decide whether the common suffix .us is sufficient for relaxed alignment?
Walk up from aa.bb.cc.de.us and stop when you find a _dmarc record. If it's _dmarc.us, then ee.ff.gg.hi.us is OK for a relaxed match. If it's below that, it isn't.
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
