The results of your email command are provided below. - Original message details: From: dev@lists.ffnw.de Subject: unsubscribe Date: Mon, 8 Jan 2018 03:38:24 +0000 (UTC) Message-ID: <572CB4AE84EB3E05.7551e9cc-a8eb-4cb5-abb1-0c4f6395753a@mail.outlook.com> - Results: No registered user for email address: dev@lists.ffnw.de - Unprocessed: b'unsubscribe' Unsubscribe request sent by Outlook for iOS and Android - Done.