On 1/31/21 6:42 PM, steve lund wrote:
> Tom,
> 
> Good point. It has been a LONG time since I wandered into attempting to
> read email headers. Here is a sample header from the list that recently had
> the domain related bounce issue Let me know if you see anything that is
> mis-configured. BTW, the ISP is going to switch to the current Mailman
> version 3 fairly soon. I don't know if this is going to help  the situation
> or not.


Probably not.


================================================================================================================
> Delivered-To: slund...@gmail.com

This message was to you

> Return-Path: <msing-ride-boun...@lists.msinglinks.org>

from the list


> Received-SPF: pass (google.com: domain of
> msing-ride-boun...@lists.msinglinks.org designates
> 2600:3c02::f03c:91ff:fe71:4634 as permitted sender)
> client-ip=2600:3c02::f03c:91ff:fe71:4634;
> Authentication-Results: mx.google.com;
>        dkim=pass header.i=@msinglinks.org header.s=201912 header.b=bz9GJB1w;
>        arc=fail (body hash mismatch);
>        spf=pass (google.com: domain of
> msing-ride-boun...@lists.msinglinks.org designates
> 2600:3c02::f03c:91ff:fe71:4634 as permitted sender) smtp.mailfrom=
> msing-ride-boun...@lists.msinglinks.org;
>        dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=
> lists.msinglinks.org

And gmail says it passes spf, dkim and DMARC.


> To: MSing Links Ride List <msing-r...@lists.msinglinks.org>


and was sent to the list


> X-Content-Filtered-By: Mailman/MimeDel 2.1.34

and was content filtered by Mailman.


> X-Mailman-Version: 2.1.34

Mailman version is 2.1.34 (the latest 2.1 version)



> From: Donald Belk via MSing-ride <msing-r...@lists.msinglinks.org>
> Reply-To: Donald Belk <donaldrb...@gmail.com>

And the From: is munged by the list and the original From: added to
Repty-To:


So this list is Munging From: headers, and if that was the case when the
bounces occurred (maybe 3 weeks before the unsubscribes), the bounces
probably weren't for DMARC reasons.


-- 
Mark Sapiro <m...@msapiro.net>        The highway is for gamblers,
San Francisco Bay Area, California    better use your sense - B. Dylan
------------------------------------------------------
Mailman-Users mailing list -- mailman-users@python.org
To unsubscribe send an email to mailman-users-le...@python.org
https://mail.python.org/mailman3/lists/mailman-users.python.org/
Mailman FAQ: http://wiki.list.org/x/AgA3
Security Policy: http://wiki.list.org/x/QIA9
Searchable Archives: https://www.mail-archive.com/mailman-users@python.org/
    https://mail.python.org/archives/list/mailman-users@python.org/

Reply via email to