Isn't this the usual DKIM problem with lists?
The From: has @loop.de, but the sender and DKIM signature
is from lists.debian.org.

That's why most lists these days rewrite the From: header.

  Detlef

On 7/4/24 14:24, Hans wrote:
Me again, sorry.


Now I got my last mail back with the spam tag!


Subject:
Re: *****SPAM***** [SOLVED] Re: This is a testmail!


This is the header:


--------------------
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X-SPAM-FACTOR: DKIM
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Authentication-Results: mail39c50.megamailservers.eu;
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Authentication-Results: mail39c50.megamailservers.eu;
  spf=none smtp.mailfrom=lists.debian.org
Authentication-Results: mail39c50.megamailservers.eu;
  dkim=fail reason="signature verification failed" (1024-bit key)
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From: Hans <hans.ullr...@loop.de>
To: debian-user@lists.debian.org
Subject: *****SPAM***** [SOLVED] Re: This is a testmail!
Date: Thu, 04 Jul 2024 14:04:53 +0200
Message-ID: <2408526.NG923GbCHz@protheus2>
In-Reply-To: <46505217.fMDQidcC6G@protheus2>
References:
  <3645068.R56niFO833@protheus2> <66868718.1030...@fastmail.fm>
  <46505217.fMDQidcC6G@protheus2>
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Content-Type: text/plain; charset="UTF-8"
X-VADE-SPAMSTATE: clean
X-VADE-SPAMSTATE: clean
X-VADE-SPAMSCORE: 0
X-VADE-SPAMSCORE: 0
X-VADE-SPAMCAUSE:
  
gggruggvucftvghtrhhoucdtuddrgeeftddrudelgdegiecutefuodetggdotefrodftvfcurfhrohhfihhlvgem
ucfjqffuvffqrffktedpgffpggdqveehtdenuceurghilhhouhhtmecufedtudenucenucfjughrpefhvffufffkjgh
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spghrtghpthhtohepuddprhgtphhtthhopehhrghnshdruhhllhhrihgthheslhhoohhprdguvg
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gggruggvucftvghtrhhoucdtuddrgeeftddrudelgdegjecutefuodetggdotefrodftvfcurfhrohhfihhlvgem
ucfjqffuvffqrffktedpqfgfvfdpgffpggdqveehtdenuceurghilhhouhhtmecufedtudenucenucfjughrpefhvf
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dupdhrtghpthhtohepuggvsghirghnqdhushgvrheslhhishhtshdruggvsghirghnrdhorhhg
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  R_DKIM_REJECT(1.00)[megamailservers.eu:s=maildub]; CTE_CASE(0.50)[];

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