En regardant en détail dans l’email :

Return-Path: <alex@email.no>
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Received: from epost.no (unknown [188.166.48.88])
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X-Sender: <alex@email.no>
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Message-ID: <70.2569.7562.DA93A@email.no>
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X-Complaints-To: <abuse@mail.email.no>
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List-Subscribe: <https://email.no/lists/?p=subscribe>
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Date: Thu, 13 Jun 2019 17:34:47 +0200
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X-CSA-Complaints: whitelistcomplaints@email.no
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X-Sender-Info: <alex@email.no>
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Abuse-Reports-To: abuse@email.no
...

Le message :