| Re: [hatari-devel] DKIM/DMARC test |
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- To: hatari-devel@xxxxxxxxxxxxxxxxxxx, Uwe Seimet <Uwe.Seimet@xxxxxxxxx>
- Subject: Re: [hatari-devel] DKIM/DMARC test
- From: Nicolas Pomarède <npomarede@xxxxxxxxxxxx>
- Date: Tue, 24 Jun 2025 10:50:54 +0200
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Le 24/06/2025 à 10:38, Uwe Seimet a écrit :
I have just contacted my ISP and they told me that they enabled DMARC for all
of their customers about 3 weeks ago. So now I know there was a recent
configuration change, indeed.
I mentioned to them that I did not get any information about the fact that an
email was rejected due to DMARC. They told me that the sending mail server
should handle this when an email was rejected, by sending me a separate email
telling me so. I don't know if this is the right solution, but even if it is,
I can probably not expect tuxfamily to do so (anymore).
Good to know, and maybe Eero has the same problem with his ISP.
This seems to be a common problem with DKIM and mailing lists and it can
be handled using ARC to add a chain of servers that signed the email
https://www.sympa.community/manual/customize/dkim-arc.html
maybe a possible workaround to test when you post a new message to the
mailing list if you want to enable DMARC again : add [hatari-devel]
yourself to the subject of the mail, I think the mailing list will then
not add a second [hatari-devel] in the subject and your mail will remain
unaltered wrt the DKIM signature :)
Nicolas