Is it not ARC meant to be the solution for this problem? Would DMARC then consider the original DKIM and SPF tests?
Todd C. Miller <mill...@openbsd.org> schrieb am Mi., 13. März 2024, 14:56: > 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 > >
