Re: [Tools-discuss] SPF rejection of mail to chairs

Jim Fenton <fenton@bluepopcorn.net> Thu, 27 February 2020 23:08 UTC

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To: Carsten Bormann <cabo@tzi.org>
Cc: Robert Sparks <rjsparks@nostrum.com>, Michael Richardson <mcr+ietf@sandelman.ca>, tools-discuss@ietf.org
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From: Jim Fenton <fenton@bluepopcorn.net>
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Date: Thu, 27 Feb 2020 15:08:49 -0800
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Subject: Re: [Tools-discuss] SPF rejection of mail to chairs
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On 2/27/20 2:41 PM, Carsten Bormann wrote:
> On 2020-02-27, at 22:20, Jim Fenton <fenton@bluepopcorn.net> wrote:
>> SPF does have a "hardfail" policy, but just about
>> nobody actually rejects mail
> I would have thought that, but I now know better…
>
You're saying that this rejection is actually due to SPF and not DMARC
then? If that were the case, it would be a lot easier to remediate (just
rewrite the envelope-from address to a different domain). DMARC binds to
the From header field, which requires the much uglier rewriting we're
all seeing.