Mark: Thanks much. I think I will give Munge From and see what happens.
Computers are supposed to be deterministic. This stuff, well, not so much. Thanks again, Arlen Raasch On Tue, Apr 5, 2016 at 4:00 PM, Mark Sapiro <m...@msapiro.net> wrote: > On 04/05/2016 12:14 PM, Arlen Raasch wrote: > > > > A large number of our users are not happy with how mail is presented when > > Mail_as_list is active. They messages appear as attachments in some > MUAs. > > > > If I change from Mail_as_list to Mung From, DKIM does not validate. > > > I'm guessing you are talking about the from_is_list setting and you are > using 'Wrap Message'. > > > > I noticed from previous emails I received from this list that DKIM does > not > > validate here either. > > > The original, incoming DKIM signature doesn't validate because list > transformations such as prefixing the subject or adding msg_footer break > the sig. > > I just checked and found that mail.python.org was not DKIM signing > outgoing list mail because it was checking only the From: domain for > python.org. I have hopefully just corrected that. > > > > Can I just switch the list to Mung From with some certainty that the > email > > providers will continue to relay our traffic as we have valid SPF and > DMARC > > records? > > > If Wrap Message is currently working for you, I don't know why Munge > From would not work, but there is little difference between these > actions in Mailman 2.1.21 vs 2.1.16. However, 2.1.21 does offer > dmarc_moderation_action so you can apply Wrap Message or Munge From only > to those messages which are From: a domain which publishes a DMARC > p=reject (and optionally p=quarantine) policy. > > > > Would switching to a later version of mailman make this any better (and > > why)? > > > Maybe. As I say above, it would allow you to only apply DMARC > mitigations to those posts that need it. Whether it would make Munge > From any better depends on what the current issue is. I know of no > reason why Wrap Message would be effective in avoiding DMARC rejects and > Munge From would not, but ISPs do funny things and are secretive about > it, so who knows. > > My own lists and the python.org lists do Munge From and we don't see > DMARC bounces. > > -- > 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 > https://mail.python.org/mailman/listinfo/mailman-users > Mailman FAQ: http://wiki.list.org/x/AgA3 > Security Policy: http://wiki.list.org/x/QIA9 > Searchable Archives: > http://www.mail-archive.com/mailman-users%40python.org/ > Unsubscribe: > https://mail.python.org/mailman/options/mailman-users/araasch%40gmail.com > ------------------------------------------------------ Mailman-Users mailing list Mailman-Users@python.org https://mail.python.org/mailman/listinfo/mailman-users Mailman FAQ: http://wiki.list.org/x/AgA3 Security Policy: http://wiki.list.org/x/QIA9 Searchable Archives: http://www.mail-archive.com/mailman-users%40python.org/ Unsubscribe: https://mail.python.org/mailman/options/mailman-users/archive%40jab.org
