>> 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." As far as I can tell, that bit of poor advice hasn't been implemented. >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?) See RFC 2606. R's, John PS: I did a few experiments, and putting two addresses on the From: line works remarkably well to avoid inappropriate policy failures, e.g. From: Marissa <marissam@xxxxxxxxx>, foo-list@xxxxxxxx Subject: whatever ...