On Sat, May 10, 2025 at 10:18 AM John R Levine <[email protected]> wrote:

> On Fri, 9 May 2025, Wei Chuang wrote:
> >> I don't see anything useful in the A-R header that the recipient
> doesn't know, or
> >> couldn't easily figure out.
> >>
> >> Am I missing something?
>
> > verification of an earlier receiver's result.  Where
> > DKIM2-Authentication-Result can be helpful is to provide a convenient
> place
> > to show intermediate MTA DKIM2 validation results and the context of
> those
> > computations as comments that may be helpful for debugging.
>
> I believe it could be useful for debugging, but in that case how about if
> we invent a DKIM2-Optional-Debugging-Info header or field that has
> whatever might be useful for debugging, not just what's in A-R?
>
>
It would be more work to bring up a new description than just lean on
RFC8601 that specifies Authentication-Result of which DKIM2 would just be
another method.
-Wei
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