It appears that Murray S. Kucherawy <superu...@gmail.com> said: >(1) MLMs don't necessarily want to start doing DNS queries. They operate >just fine never touching the DNS today; this is a new dependency and bunch >of stuff they have to learn to apply and suppot.
Depends how they're set up. In the common case that the inbound MTA adds an A-R header, it can get the DMARC policy there. That's how my dmarc.fail shim works. >(2) An author domain can decide to affix this at its discretion, ... The basic problem is that author domains lie about their policy, i.e., p=none but they expect mailing lists to work, and their users are stuck. R's, John _______________________________________________ dmarc mailing list dmarc@ietf.org https://www.ietf.org/mailman/listinfo/dmarc