On March 13, 2024 1:54:14 PM EDT, "Todd C. Miller" <mill...@openbsd.org> wrote: >I've just added support to our majordomo for rewriting the From: >header when the sender's domain has a DMARC policy. Messages from >domains using DMARC will now have a From: header like: > > From: "John Connor via misc" <misc@openbsd.org> > >and the original From: address is preserved in the X-Original-From: >header if one is not already present. > >This seems like the only reliable way to address the problem given >that the mailing list server often reformats or otherwise modifies >the message body. > >The rewriting currently happens even for a DMARC policy of "none" >since some large senders (for example gmail.com) use a policy of >"none" but receivers may still enforce SPF. I could relax this but >I worry that doing so will lower the IP or domain "reputation" in >Google's eyes (something that is already a black box). > > - todd >
Thank you! -Josh-
