On 06/16/2014 10:10 AM, Bryan Wright wrote: > Could we not send the message out as usual, then on a p=reject bounce, > forward the original message (so it comes from the mailing list) along with > an explanation of what is transpiring to the bounced user, plus to the > message author? Maybe include a note suggesting the author change mail > providers. This way if the message author's domain causes 20 bounces, they > get 20 messages letting them know they need to change mail providers.
Aside from the fact that this would be a real kludge to implement, inundating the message author who is in a very real sense an innocent victim of his ESPs policy with this kind of backscatter is unacceptable. Note that on April 4, one post to one of my lists From: a yahoo.com address which was sent to only 236 individual message subscribers was bounced by 90 of them. Of those 90 bounces, I'm not sure how many I could identify reliably as DMARC bounces without just assuming they were because the From: domain published a DMARC p=reject policy. But, my point is close to 40% of the list member's ESPs honored the p=reject policy. YMMV, but that's a lot of extra handling. While the idea of identifying a DMARC bounce and "forwarding" the original post to the bounced recipient wrapped in some boilerplate about the need to do so has some appeal, I think the implementation would be too messy to contemplate. If you wish to try, the code is at <https://code.launchpad.net/~mailman-coders/mailman/2.1> aka 'bzr branch lp:mailman/2.1'. -- 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
