On Wed, May 10, 2023 at 11:05:59AM +0900, Mark Brown wrote:

AFAICT the only other option is munging the From without enclosing the message in a wrapper? That's potentially marginally less harmful but it's still going to break things badly enough that I'm not sure it's a worthwhile improvement.

The readymade mitigations for DMARC in mailman 3 are "munge_from" and "wrap_message". The fact "wrap_message" messes around with signatures in mutt is definitely not a good sign, and "munge_from" will change the author's email and name from the perspective of git-am.

The middle way could be to patch mailman 3 to "munge_from" while adding the correct "From:" as the first thing in the body of the message if it doesn't contain one already. This will make git-am pickup the correct author's details and it should be some simple logic.

If Jaroslav is brave enough to maintain this supposed patch to mailman 3 in case it doesn't get picked-up upstream by the FSF folks...

I understand the maintainers needs must come first but it will be terrible to get the GMail bouncing behaviour again, I don't want to press the point since Jaroslav already made the speech I think it was needed.

Thanks, Geraldo Nascimento