Comme toujours du SPAM ( signalé sur https://www.signal-spam.fr ) :

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From: =?UTF-8?q?R=C3=A9sidence_Agathos?= <resagathos@wanadoo.fr>
....
Subject: Nouvelles d'Agathos
Date: Fri, 20 Apr 2018 07:00:22 +0000
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Les noms de domaines dans ce SPAM :

• mailjet.com
• residenceagathos.com
• googleapis.com
• mjt.lu