On Tue, May 09, 2023 at 08:03:39PM +0200, Jaroslav Kysela wrote: > DMARC is a internet standard - see RFC7489, RFC8616. It means that the > mailing lists cannot send e-mails with From from other domains which have > restricted policies set by *their* administrators. So basically, all mail > servers violates this if they keep the From header. This is not correct. Operating a mailing list server is perfectly DMARC-compliant as long as: - messages have DKIM signatures - ML software doesn't modify any of the signed headers - ML software doesn't touch the body -K
