As already mentioned in a side note on this list [1] I believe vm6.ganeti.dyne.org - the receiving mail server of this list - is not able to verify DKIM signatures of incoming messages correctly. I checked through the Mails I kept from the DNG list and found not a single mail with a DKIM signature, that was successfully verified.
All incoming DKIM signed messages get a header added by vm6 that says
something like:
Authentication-Results: vm6.ganeti.dyne.org;
dkim=fail reason="signature verification failed"
(2048-bit key; secure) header.d=mailgurgler.com
header.i=@mailgurgler.com header.b="oA569rJc";
dkim-atps=neutral
Searching through 5659 messages I archived, 2743 are DKIM signed and none of
the signatures are found valid by vm6, thus I assume the verification on vm6
does not work.
Regards, Adrian.
[1] 29/12/2019 02:26, Message-ID:
<0306d67d-6576-3c1f-6475-438d9d151...@ente.limmat.ch>
https://lists.dyne.org/lurker/message/20191228.125701.7492cacc.en.html
signature.asc
Description: This is a digitally signed message part.
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