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