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Re: [dmarc-ietf] Signaling forwarders, not just MLMs

John Levine <johnl@taugh.com> Thu, 13 April 2023 15:13 UTC

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From: John Levine <johnl@taugh.com>
To: dmarc@ietf.org
Cc: superuser@gmail.com
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Subject: Re: [dmarc-ietf] Signaling forwarders, not just MLMs
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It appears that Murray S. Kucherawy  <superuser@gmail.com> said:
>And a good example, given it's the most obvious one.  But is it enough to
>say that and nothing else?  What about MLMs actually doing something like
>this?

MLMs get all the attention but please remember my lost census mail example.

Anyone who does forwarding is damaged by DMARC because there are a lot of
people who do DMARC on the cheap with SPF only.  There is a lot of fowarding,
both the pobox style stuff and people who collect mail from other places at
big webmail providers.

R's,
John

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