On Tue, Oct 18, 2022 at 11:18 PM Scott Kitterman <skl...@kitterman.com> wrote:
> > > On October 18, 2022 10:16:44 PM UTC, Neil Anuskiewicz < > n...@marmot-tech.com> wrote: > > > > > >> On Oct 2, 2022, at 11:01 AM, Douglas Foster < > dougfoster.emailstanda...@gmail.com> wrote: > >> > >> > >> In many cases, an evaluator can determine a DMARC PASS result without > evaluating every available identifier. > >> If a message has SPF PASS with acceptable alignment, the evaluator has > no need to evaluate any DKIM signatures to know that the message produces > DMARC PASS. > >I think it’s critical to DMARC that receivers do things like evaluate and > report on DKIM whether or not SPF passes and is alignment. Without this, it > would make it harder for senders to notice and remediate gaps in their > authentication. Since there’s not a downside (that I know of), I’d say this > should be a MUST if at all possible. > > > What is the interoperability problem that happens if evaluators don't do > that? > > Scott K > Scott, What is the interoperability problem is evaluators didn't provide reports at all? Reporting isn't a "must" for interoperability but it certainly helps improve outcomes instead of senders flying blind. Michael Hammer
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