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Re: [dmarc-ietf] DMARC-Compliant Mailing Lists

Scott Kitterman <sklist@kitterman.com> Sun, 17 October 2021 18:53 UTC

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Date: Sun, 17 Oct 2021 18:53:31 +0000
From: Scott Kitterman <sklist@kitterman.com>
To: dmarc@ietf.org
In-Reply-To: <597ea10e-f952-2aa1-7936-1d61c9d61d46@spamtrap.tnetconsulting.net>
References: <20211006233727.24C1429DC897@ary.qy> <56B7A1D4-B683-47D3-8871-2A1F283FA464@wordtothewise.com> <c1e199f1-0c91-9c39-1479-e9ba76af493e@tana.it> <2290129.80B3yH0EHm@zini-1880> <b0091b5c70d7b18bebdabc5752bee162@junc.eu> <CAH48ZfzL_2dfcK1AYj9m2KBeYNA1CE1iYevDGvGuqz4DaT=R6w@mail.gmail.com> <c14eec96f4d6a87bcb49403f8bc37540@junc.eu> <CAH48ZfyFQacBkjM5HEjysBuqV55o9HH5F-cTd3nsfOgOKKRXtw@mail.gmail.com> <CAMSGcLDT6f3+bPTAR-qe4r3mQOgUz2u65OW4-KnW9FEqtUXckQ@mail.gmail.com> <f6172a35-55c8-605b-e7dd-9e6d12b64b39@tana.it> <A44B73FE-32F2-4D5E-9D4D-8EB9AF08911A@kitterman.com> <597ea10e-f952-2aa1-7936-1d61c9d61d46@spamtrap.tnetconsulting.net>
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Subject: Re: [dmarc-ietf] DMARC-Compliant Mailing Lists
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On October 17, 2021 6:05:27 PM UTC, Grant Taylor <gtaylor=40tnetconsulting.net@dmarc.ietf.org> wrote:
>On 10/17/21 11:49 AM, Scott Kitterman wrote:
>> Odd, I thought this message was from you, Ale?
>
>It depends if you are talking about the content or the SMTP 
>communications path.
>
>The content of this message is from me, but my email server will not 
>have been the one that sent it to your server.  It will be the IETFs 
>server that communicates with your server.

True, but SMTP and the body From are unrelated.

At the SMTP level, mailing lists have quite commonly and unremarkably used a Mail From for the list.  That's why SPF doesn't have a "mailing list problem".

If mailing lists were merely a conduit for computer generated content, approximately no one would read them.

Scott K

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