[Discuss] DMARC issue, Yahoo and beyond

[Richard Pieri]

Tom Metro wrote:
> So the gist of the problem is that DMARC is asserting that mail from a
> particular sender should be originating from certain servers, and unlike
> SPF (also part of DMARC, but not the part causing problems), this looks
> not at the envelope sender address, but the RFC822 message headers.

DMARC is broken. GNU Mailman is also broken. Nobody seems interested in
genuinely fixing either of them, just in breaking things in new and
different (and not particularly interesting) ways in order to maintain
some nebulous ideal of user experience.

-- 
Rich P.