Upon receipt of an email from the Invantive forums, an error message is displayed:
In Dutch:
Dit e-mailadres gebreuikt foutieve domeininstellingen. Het kan een nepbericht zijn, of het is op de verkeerde manier doorgestuurd.
In English:
This email address uses incorrect domain settings. It may be a fake message, or it has been forwarded in the wrong way.
A run on mail-tester.com results in a 10/10 perfect score, but with two orange marks.
First one:
Second one:
The mail headers are:
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Authentication-Results: mail.protonmail.ch; dmarc=fail (p=none dis=none)
header.from=invantive.eu
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Authentication-Results: mail.protonmail.ch; dkim=pass (1024-bit key)
header.d=communiteq.com header.i=@communiteq.com header.b="LWk9ebIZ"
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key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No
client certificate requested) by mailinzur102.protonmail.ch (Postfix) with ESMTPS id
4ZdTVw1MPsz6B for <info@invantive.com>; Thu, 17 Apr 2025 07:07:52 +0000 (UTC)
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Date: Thu, 17 Apr 2025 07:07:51 +0000
From: invantive <forums@invantive.eu>
Reply-To: invantive <forums@invantive.eu>
To: info@invantive.com
Message-Id: <1631599d-cdfb-4d5a-af2b-220c779ccdc0@forums.invantive.com>
Subject: [invantive] E-mailafleverbaarheidstest
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It seems like the DKIM domain differs from the From domain, but it is uncertain whether this is the cause of the error in the first picture.