Yes, I know that SPF, DKIM and DMARC can cause problems with mailing lists, but people have been working on it for years. I just thought that Mozilla was sophisticated enough to have implemented a workaround.
The ISC BIND users mailing list, for example, uses Mailman and in their configuration the DMARC handler, modifies the "From:" address and adds "Reply-To:" like so: Paul Kosinski via bind-users <bind-us...@lists.isc.org> Reply-to: Paul Kosinski <b...@iment.com> The ClamAV users mailing list does something similar, also changing "From:", adding "Reply-to:", but also adding a "Cc:" like so: From: Paul Kosinski via clamav-users <clamav-us...@lists.clamav.net> Reply-To: ClamAV users ML <clamav-us...@lists.clamav.net> Cc: Paul Kosinski <clamav-us...@iment.com> Topicbox also uses the "From:" "via" workaround. It's a shame that Mozilla doesn't do something to mitigate its DMARC problem. P.S. Since DMARC info is supplied by the DNS server and applies to the whole domain, I don't see offhand what to do that would accommodate Mozilla's rather lame mailing list mechanism. On Sun, 14 Jul 2019 16:45:59 -0500 Don Wright <wm...@wricomp.com> wrote: > Paul Kosinski wrote: > >Here's another example of a DMARC "failure" when mail (from me) is > >passed on to an ESR subscriber. > > > DMARC is fundamentally broken[1] with regard to mailing lists as it > only checks the From: and not the Sender: field. Mitigating > DMARC-induced problems is a frequent topic on the mailman-users > support mailing list.[2] > > > [1] https://en.wikipedia.org/wiki/DMARC#Mailing_lists > [2] https://mail.python.org/mailman/listinfo/mailman-users _______________________________________________ Enterprise mailing list Enterprise@mozilla.org https://mail.mozilla.org/listinfo/enterprise To unsubscribe from this list, please visit https://mail.mozilla.org/listinfo/enterprise or send an email to enterprise-requ...@mozilla.org with a subject of "unsubscribe"
