DKIM signature rejected

Hello mutt-experts,

I've got a reject of an email to a public PostgreSQL mailing list due to
an issue with my DKIM signature. Attached below. I've sent a test email
to my company mailbox to see my resulting DKIM signature. It's:

DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=unixarea.de
	; s=blu3434000; h=Content-Transfer-Encoding:Content-Type:MIME-Version:
	Reply-To:Message-ID:Subject:To:From:Date:Sender:Cc:Content-ID:
	Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc
	:Resent-Message-ID:In-Reply-To:References:List-Id:List-Help:List-Unsubscribe:
	List-Subscribe:List-Post:List-Owner:List-Archive;
	bh=mUXCo4CB5VS0jsNsC2LeR8NOxLomD73G556GgsVmluA=; b=nlMvRnatrYiMjStI6F/rnF2zbZ
	DqqjgqpA4fezouBgwHPPz+VAN+msCPqY+I6oQa1B6eP5bNZhr9bi8UCvVvRmTWX+LC74GdzsYsfR9
	5zDhdwYSgxaU6fW4CbtGfhZT+v/lH+x2sPi3OEdBPIEdeuHstof32yzBm00xnRX0MttjZx8E9ReyG
	GHBKSuWo9f80m9Y4VamhplV99V5aMxJZOU+MNVU/Jfdj9h4Q5aMfEtwT+SOCPBBoze7wFOpXRvQOd
	MdYA7FtH3uUlpMn0FwqpopXHqTl7Xs+cKxT/AZwRnogqdwsFmQg3fMf0/Tr8gMAPGluXkdpC8kKog
	qw+9X8Sg==;

What could be wrong with this and how do I fix this. mutt is sending the
mail to the SMTP server of my provider 1blu, i.e.  I have in ~/.muttrc:

set smtp_url="smtps://[email protected]:465"

Any ideas?

	matthias

----- Forwarded message from pgsql-bugs Owner <[email protected]> -----

Date: Wed, 19 Feb 2025 09:11:16 +0000
From: pgsql-bugs Owner <[email protected]>
To: [email protected]
Subject: Your message to pgsql-bugs

Your message to pgsql-bugs with subject

Re: BUG #18817: Security Bug Report: Plaintext Password Exposure in
 Logs

has been rejected by a moderator and will not be posted.
The reason given for rejection was:

This email has a DKIM signature on the List- headers of
the email, indicating that it is not allowed to pass this
email on through a mailinglist.

Please ensure that emails you send to the list, and others
hosted on the same server, allow re-sending on a mailinglist.

Fixing this is normally a configuration setting in either your
own mail server, or that of your provider. Exactly how it is done
depends on which software is being used.


----- End forwarded message -----

-- 
Matthias Apitz, ✉ [email protected], http://www.unixarea.de/ +49-176-38902045
Public GnuPG key: http://www.unixarea.de/key.pub

Annalena Baerbock: "We are fighting a war against Russia ..." (25.1.2023)

I, Matthias, I am not at war with Russia.
Я не воюю с Россией.
Ich bin nicht im Krieg mit Russland.