Return-Path: <>
From: MAILER-DAEMON@example.com (Mail Delivery System)
Content-Type: text/plain;
  charset=iso-8859-1
Content-Transfer-Encoding: quoted-printable
Subject: Undelivered Mail Returned to Sender
To: you@example.com
Date: Fri, 4 May 2018 14:01:03 +0200
Message-Id: <20170516045518.E63C61882@example.com>

some test
