Hector, I do not understand this comment: "The DKIM Policy Model since ADSP lacked the ability to authorize 3rd party domains. DMARC did not address the problem and reason ADSP was abandoned. Hence the on-going dilemma."
Domains that participate with a mailing list have the option of including the ML servers in their SPF record, or delegating them a DKIM scope and key. But to obtain that authorization from the sending domain, someone would have to ask for it, and might not receive the desired answer. The goal of this discussion is to find a way to coerce trust. We do not lack ways to grant trust on request. _______________________________________________ dmarc mailing list dmarc@ietf.org https://www.ietf.org/mailman/listinfo/dmarc