On Wed, Jul 11, 2018 at 5:38 PM, Jim Fenton <fen...@bluepopcorn.net> wrote:

>
> So essentially we're creating a bunch of header bloat (creating duplicate
> header fields with different names where that could be avoided) because
> there are some MTAs that did not follow the specifications before. That
> makes me unhappy, but what matters here is not the behavior of all MTAs,
> it's the behavior of MTAs implementing ARC (that include instance number
> tag/value). If there's an MTA in the middle that deletes DKIM-Signature,
> it's not implementing ARC and the chain is broken.
>

The DMARC WG is explicitly *not* scoped to make normative changes to any
other specifications so changing DKIM (for example) is not an available
option. Deleting or otherwise breaking one or more of the DKIM-Signatures
on a message has nothing to do with ARC per se. It's even possible that an
ARC-implementing ADMD could do such a thing.

--Kurt
_______________________________________________
dmarc mailing list
dmarc@ietf.org
https://www.ietf.org/mailman/listinfo/dmarc

Reply via email to