On 19 May 2025, at 14:48, Bill Cole wrote: > On 2025-05-19 at 05:22:42 UTC-0400 (Mon, 19 May 2025 11:22:42 +0200) > Benny Kjær Nielsen <mailmate@lists.freron.com> > is rumored to have said: > >> I'm not sure if this indicates that all senders on the mailing list have to >> have DKIM configured for their domains now? This is not the case for the >> From address involved. > > I believe it only requires that all mailing lists using Mailman that touch > the body to "Munge All" From addresses and re-sign messages.
Currently, this only happens for emails from domains with DMARC enabled and a reject policy. Even if I did this for all emails from domains with DMARC enabled then I don't think it would solve this problem. There would still be emails with a DKIM signature from a non-DMARC domain. My server would either need to strip the DKIM-headers or munge/resign these emails as well, but I don't see an option for that in Mailman (2.x). I might have gotten this totally wrong, but I'm pretty sure the latest Gmail problem is related to a failed DKIM signature. (Even the emails with no DKIM signature might eventually become a problem.) It seems to me that I should perhaps just munge the From header in all emails. > Using the "Wrap" option is arguably the technically best approach but it is > the least user-friendly because not all MUAs handle the message/rfc822 > content-type adeptly. I have the unique advantage of knowing that most users of the mailing list will be using MailMate to view the emails. I could add features handling this gracefully. This might be better going forward although I don't know if such atypical emails would be seen as more or less spammy by the algorithms out there. -- Benny _______________________________________________ mailmate mailing list Unsubscribe: https://lists.freron.com/listinfo/mailmate
