On 03/16/2017 06:20 AM, Terry Lund wrote: > We are getting the following error for one of our users in one of our > mailman lists. I've tried to figure out if one of the configuration options > in Privacy Rules can be used to address this issue, but I am afraid I am > not real clear on the implications of the relevent DMARC related > parameters. Any insight or assistance would be much appreciated. > > Our configuration is that our web site integration with PayPal has PayPal > sending confirmation emails to a mailman list called treasurer-alias, so > that multiple people are aware of the PayPal transaction.
PayPal.com publishes DMARC p=reject. Your treasurer-alias list makes some message transformation such as adding a footer or subject prefix that breaks PayPal's DKIM signature. Therefore recipient list member's ISPs that honor DMARC will reject the message. See <https://wiki.list.org/x/17891458> items 1) and 2) for ways to deal with this. If your Mailman is 2.1.18+, I suggest setting Privacy options... -> Sender filters -> dmarc_moderation_action to Munge From. -- 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/archive%40jab.org