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: [email protected] This message was to you > Return-Path: <[email protected]> from the list > Received-SPF: pass (google.com: domain of > [email protected] 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 [email protected] header.s=201912 header.b=bz9GJB1w; > arc=fail (body hash mismatch); > spf=pass (google.com: domain of > [email protected] designates > 2600:3c02::f03c:91ff:fe71:4634 as permitted sender) smtp.mailfrom= > [email protected]; > 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 <[email protected]> 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 <[email protected]> > Reply-To: Donald Belk <[email protected]> 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 <[email protected]> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan ------------------------------------------------------ Mailman-Users mailing list -- [email protected] To unsubscribe send an email to [email protected] 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/[email protected]/ https://mail.python.org/archives/list/[email protected]/
