Re: [dmarc-ietf] ARC questions

Michael Thomas <mike@mtcc.com> Mon, 23 November 2020 19:58 UTC

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To: Brandon Long <blong@google.com>, John R Levine <johnl@taugh.com>
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From: Michael Thomas <mike@mtcc.com>
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Date: Mon, 23 Nov 2020 11:58:12 -0800
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Subject: Re: [dmarc-ietf] ARC questions
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On 11/23/20 11:34 AM, Brandon Long wrote:
>
> From the other direction, one could say that ARC is a superset of A-R 
> and DKIM with
> different purpose, and you might be able to subsume them into ARC, but 
> you couldn't
> build ARC out of the originals.
>

It's seems to me that the superset involves explicitly binding an 
auth-res to a dkim-like signature. Is there more beyond that?

Mike