>Right. As a mailing list provider, we have a way to make our lists work: > > From: IETF mailing list on behalf of Christian Huitema <ietf@xxxxxxxx> It is certainly possible to create mailing-list-like things that avoid the damage from DMARC. The question remains why it is our job to screw up our systems to fix their problems. They could fix it if they wanted, e.g., by arranging to whitelist mail sources that don't match DMARC's authentication model but send mail people want. This is not just mailing lists, of course. I subscribe to a few lists that put the list's address on the From: line, due I think to administrative confusion, not anything deliberate, and it is much worse than normal list mail. When I look at normal list mail in my inbox, I pick out the ones from people I know first. On the lists where it's all the same, I tend to look at the subject and if it's not obviously interesting, dump the whole thread. R's, John