On 16/04/2014 18:58, Sabahattin Gucukoglu wrote: > On 15 Apr 2014, at 21:38, Brian E Carpenter <brian.e.carpenter@xxxxxxxxx> wrote: >> The mailman fix is worse than the disease. I think the .INVALID fix is >> much better, because Reply-all will still work. > > Reply-all should still work with the Mailman fix; It doesn't work *properly*. Firstly, this message wouldn't be sent to you with CC to the list, which is the correct semantic. If you weren't a subscriber, you would never see it. Secondly, the first line above would read: On 16/04/2014 18:58, IETF discussion list wrote: which is untrue. On 17/04/2014 07:01, Jim Fenton wrote: ... >>From the latest DMARC draft, section 8: > > "If the RFC5322.From domain does not exist in the DNS, Mail Receivers > SHOULD direct the receiving SMTP server to reject the message." > > So if a receiver that is implementing DMARC is faithful to the draft, > that won't work very well (nobody has gotten a TLD allocation for > .invalid, I hope?) DMARC isn't a standard, though, so standards-compliant mail receivers shouldn't be implementing it. And that particular rule seems completely out of place even if DMARC was a standard. Brian