Authentication-Results: spf=temperror (sender IP is 185.67.36.66)
 smtp.mailfrom=posteo.de; dkim=pass (signature was verified)
 header.d=posteo.de;dmarc=pass action=none header.from=posteo.de;compauth=pass
 reason=100
From: <alice@posteo.de>
To: <alice@hotmail.com>