Murray S. Kucherawy writes: > How about a new tag, "shf=" (special header fields). Ignored by legacy > verifiers, as required; otherwise, contains a colon-separated list of > fields that get special handling by verifiers. "Special handling" depends > on the header field and would need to be documented in each case. For > DKIM-Delegate, for example, it is always canonicalized in a special way > that would cause the signature never to validate for a legacy > verifier.
This seems to have it backwards though, because it's the presence of the DKIM-Delegate field that means one or more of the DKIM-Signature fields require special handling. _______________________________________________ dmarc mailing list [email protected] https://www.ietf.org/mailman/listinfo/dmarc
