On 25.10.2025 22:50 Uhr monodev wrote: > On 10/25/25 9:28 PM, Marco Moock wrote: > > If a mailing list doesn't rewrite the MAIL FROM, SPF will fail and > > bounces (IIRC if subscribers have full inbox, deleted addresses > > etc.) will go to the original sender of the message. > > This mailing list does rewrite the envelope from, but the DMARC > reports I receive after posting here -- from providers both big > (gmail, outlook, hotmail) and small -- still universally report SPF > failures.
That is rather interesting. Is it known why SPF fails in that case? > I did not receive such reports after posting on postfix-users, but > mail from that mailing list breaks DKIM due to the list rewriting the > message from. They do use ARC though which I'm not familiar with, so > the fault in that case is probably with my setup being out of date > with best practices. There are also lists that rewrite both envelope from and from, so the original domain isn't present. That fixes the DMARC issues. > Out of curiosity, your mail does not seem to contain a DKIM > signature, how's your deliverability? I use this mailing list via the mail2news gateway, so they can't add a DKIM signature to my posts here. I do DKIM signing on my mail server for outgoing mail. -- kind regards Marco Send spam to [email protected]
