John Levine wrote: >> For instance, what would happen if mail servers provided feedback to >> both senders (on a per message basis in the form of NDNs) > > Well, since 95% of all mail is spam, and all the spam has fake return > addresses, you'd increase the amount of bogus NDNs by more than an > order of magnitude. No thanks. > > Incidentally, on a bad day I already get 400,000 NDNs from mail that I > didn't send, just from the minority of MTAs that send NDNs in response > to spam now. This is not a hypothetical problem.
Point of order: is NDN "produce bounce" or does it include "reject"? In my response I took NDN to mean "reject". Not bounce. Filters should never bounce (and that would go in a filtering BCP). _______________________________________________ Ietf mailing list Ietf@ietf.org https://www.ietf.org/mailman/listinfo/ietf
