On 8/2/22 12:30 PM, Jim Popovitch via NANOG wrote:
On Tue, 2022-08-02 at 11:24 -0700, Michael Thomas via NANOG wrote:
On 8/2/22 11:18 AM, Chris Adams via NANOG wrote:
Once upon a time, Chris Adams <c...@cmadams.net> said:
Once upon a time, Jared Mauch <ja...@puck.nether.net> said:
Can someone flip the option in Mailman for DMARC please, it’s problematic as if
one posts and does DMARC and has feedback on, our messages are possibly
rejected, and the feedback from a post is quite large.
The list is doing the DMARC handling (From rewrite) for senders with a
DMARC p=reject.
Oh, or someone just changed the config per your request. :) I have
p=none but my From got rewritten on this message.
I think it's been doing this for ages. It was the first time I'd seen
From rewriting in the wild iirc.
It's been doing it for ages for p=reject, but not p=none (the latter
being Jared's situation)
There are toggles in MM2 to do DMARC address rewriting for p=none and
p=quarantine in addition to p=reject.
I'm sort of surprised that an org would have p=reject when its users use
outside mailing lists. Most mailing lists probably don't even have From
rewriting or the mailing list operator is clueless about the problem.
(think: non-technical mailing lists).
Mike
