Examples of mails which are detected as automated messages
Emails containing ccc vouchers are detected as an automated message:
Headers of such a mail
Date: Tue, 29 Oct 2019 15:55:00 +0000
From: 36th Chaos Communication Congress <36c3-tickets@cccv.de>
To: foo@bar.com
Message-ID: <xy@tickets-backend.events.ccc.de>
Subject: [36C3] You received a voucher
Mime-Version: 1.0
Content-Type: multipart/alternative;
boundary="===============5623735347053802827=="
Content-Transfer-Encoding: 7bit
X-Virus-Scanned: amavisd-new at
X-Auto-Response-Suppress: OOF, NRN, AutoReply, RN
Auto-Submitted: auto-generated
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