On 4/15/14 1:38 PM, Brian E Carpenter wrote: > > The mailman fix is worse than the disease. I think the .INVALID fix is > much better, because Reply-all will still work. > >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?) -Jim