On Sat, Apr 12, 2014 at 6:15 PM, Peter Shute <psh...@nuw.org.au> wrote: >> On 12 Apr 2014, at 9:28 pm, "Mark Sapiro" <m...@msapiro.net> wrote: >> >>>> Additional reading at <http://www.dmarc.org/faq.html#s_3>, >>>> <http://blog.threadable.com/how-threadable-solved-the-dmarc-problem> and >>>> <http://www.spamresource.com/2014/04/run-email-discussion-list-heres-how-to.html> >>>> and other articles linked from those. >>> >>> From the threadable article: >>> "He recommends that all list administrators immediately stop delivering to >>> Yahoo addresses to limit damage, and encourage members to move to a more >>> friendly provider." >>> >>> How would not delivering to yahoo addresses help? I thought the problem was >>> with delivering yahoo email to others. >> >> >> See Jim P's post in this thread at >> <https://mail.python.org/pipermail/mailman-users/2014-April/076383.html> >> and the branch linked therefrom, although you probably don't have the >> access required to install it. >> >> Jim P's approach is to reject any post From: a domain with a DMARC >> policy of reject. >> >> To accept a post and then not deliver it to some because you know it >> won't be accepted is arguably wrong, and also, you can't know except by >> experience which recipient domains will reject the post for DMARC >> policy. I've seen the following: > > But note that the part of the threadable article I quoted talks about not > *delivering* to yahoo addresses. I would thought that shouldn't be a problem.
The recent yahoo change means that you (as a mailinglist operator) will have difficulties (and possibly eventually face blacklisting) by delivering, via your list, email that originates from a yahoo.com (and a few other) email address. Assuming you are doing SPF/DKIM/etc, you should have no problems delivering non-yahoo domain emails to yahoo. -Jim P. ------------------------------------------------------ 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