With feedback from Franck Martin and Sam Silberman, I modified my mailing list manager to rewrite the from address to be the list address, if the user posting is from a domain with a restrictive DMARC policy setting. It seems to be working well, so I've rolled it out to the production version that I use for my active lists. Probably took 2-3 hours total to work through a couple different iterations to come to that end.
I decided I didn't want to cause my subscribers pain since there was a way for me to just deal with it on the back end. Cheers, Al Iverson On Tue, Apr 8, 2014 at 10:39 AM, John Levine <[email protected]> wrote: >>> Block any attempt to post to a mailing list from a domain that >>> publishes strict DMARC. That doesn't affect functionality for >>> legitimate users and it complies with the domain owners >>> wishes (however misguided). >> >>That's clever, and oddly constructive. It informs the user of the issue >>at exactly the right time: when the subscription is being attempted and >>the user is focused on the possibility of the subscription having >>problems. Much better than indirect and obscure notification later, >>after posting a message. > > Steve actually said when people try to post. I tried that, since it's > one line in the config in my list manager. It caught a bunch of mail > from real people going to real lists (the church lists are busy, the > minister just said he's retiring) and I would not look forward to > explaining to people why their mail account that has worked fine for a > decade can't reply and say whether they're coming to this afternoon's > meeting. > > So I did the redacted From: line which was slightly harder, but moves > the pain slightly while still encouraging people to find a new address. > > R's, > John > _______________________________________________ > dmarc-discuss mailing list > [email protected] > http://www.dmarc.org/mailman/listinfo/dmarc-discuss > > NOTE: Participating in this list means you agree to the DMARC Note Well terms > (http://www.dmarc.org/note_well.html) -- Al Iverson | Chicago, IL | (312) 725-0130 Twitter: @aliverson / www.spamresource.com _______________________________________________ dmarc-discuss mailing list [email protected] http://www.dmarc.org/mailman/listinfo/dmarc-discuss NOTE: Participating in this list means you agree to the DMARC Note Well terms (http://www.dmarc.org/note_well.html)
