From: To: Authentication-Results: mail2.ecloud.global; dkim=pass header.d=posteo.de header.s=2017 header.b=bMopHaXo; dmarc=pass (policy=none) header.from=posteo.de; spf=pass (mail2.ecloud.global: domain of alice@posteo.de designates 185.67.36.66 as permitted sender) smtp.mailfrom=alice@posteo.de