Brandon Long via mailop <mailop@mailop.org> writes: > And even if you do block at smtp time, in forwarding situations you're > just making someone else generate the backscatter... [...] > > And of course, those bounces going to a mailing list just cause havoc > for some list providers, either greatly increasing bounce processing > or if they don't handle bounces right, unsubscribing a bunch of folks, > which is maybe worse...
Well, the whole point of DMARC is to get improved protection against forgeries, and, as usual, things can't improve if we insist that there be no consequences for those who refuse to take part. Plain forwarding of mail, preserving the From:, is becoming impossible, for good reasons, so we should stop doing that. Mailing lists should do what this list does, which, at least with Mailman, is no more work for the administrator than checking a box in the configuration. Allowing plain forwarding isn't a good idea anyway, seen from the point of view of the administrator of the system doing the forwarding. I have a couple of users on my home system who forward their mail to gmail, so I've set up SRS for them. That mostly works, but not for mail from Facebook, so I've been pondering using Mailman to set up single member, non archived, mailing lists for them, to work around that -- or just modifying the SRS software I use to do a similar thing. However, no matter what I do, any spam they receive here, and that is then forwarded to gmail, will be detected by Google, and blamed on me. Eventually, I'll be unable to send mail to gmail recipients. So the real solution is to refuse to forward mail for them, instead setting things up so that mail to them is bounced, with an error message explaining how to reach them directly at Google. My prediction for the future: mail will split into two realms: one consisting of Google, Microsoft, and Facebook, forwarding mail between their respective users, using protocols that are quite different from today's SMTP based set, and one for the rest of us, using further improved versions of what we have now. -tih -- Most people who graduate with CS degrees don't understand the significance of Lisp. Lisp is the most important idea in computer science. --Alan Kay _______________________________________________ mailop mailing list mailop@mailop.org https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop
