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Re: [dmarc-ietf] non-mailing list use case for differing header domains

John Levine <johnl@taugh.com> Sun, 02 August 2020 16:58 UTC

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Date: Sun, 02 Aug 2020 12:57:56 -0400
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From: John Levine <johnl@taugh.com>
To: dmarc@ietf.org
In-Reply-To: <cec0a539d7f34478930e2e172ace81c6@bayviewphysicians.com>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/dmarc/kK3ZlVDxis0Kt8ATMcigaPXK9m8>
Subject: Re: [dmarc-ietf] non-mailing list use case for differing header domains
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In article <cec0a539d7f34478930e2e172ace81c6@bayviewphysicians.com> you write:
>I wonder if this is typical  - are mailing list subscribers more likely to be on DMARC-enforcing domains than the general population?
>
>Do the mailing list operators have data about what percentage of their subscribers (or percentage of unique domains) have DMARC policy enforcement in place?

In my experience it completely depends on the list. I have a list of
folk dancers with a lot of old AOL and Yahoo addresses with DMARC
policies, and I have other lists where it's mostly gmail and
Hotmail/Outlook, without.

R's,
John

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