I finally received the right mail from the user. I am sorry for the delay.
The mail from the list does actually not contain any X-Mailman-Rule-Misses: nor X-Mailman-Rule-Hits:
Received: from EUR02-HE1-obe.outbound.protection.outlook.com (10.78.0.174) by P2KITHUB04W.unicph.domain (172.28.3.167) with Microsoft SMTP Server (TLS) id 14.3.439.0; Thu, 4 Apr 2019 16:51:56 +0200 Received: from HE1PR0402CA0016.eurprd04.prod.outlook.com (2603:10a6:3:d0::26) by VI1PR04MB4158.eurprd04.prod.outlook.com (2603:10a6:803:46::33) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.1750.17; Thu, 4 Apr 2019 14:51:54 +0000 Received: from HE1EUR02FT050.eop-EUR02.prod.protection.outlook.com (2a01:111:f400:7e05::200) by HE1PR0402CA0016.outlook.office365.com (2603:10a6:3:d0::26) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.1771.16 via Frontend Transport; Thu, 4 Apr 2019 14:51:54 +0000 Received: from listqw.example.com (192.38.XXX.X) by HE1EUR02FT050.mail.protection.outlook.com (10.152.11.209) with Microsoft SMTP Server id 15.20.1750.20 via Frontend Transport; Thu, 4 Apr 2019 14:51:53 +0000 Received: from [172.19.199.2] (mailman-core.mailman_mailman [172.19.199.2]) by lists.example.com (Postfix) with ESMTP id 12B9D7E94EFEF; Thu, 4 Apr 2019 14:51:52 +0000 (UTC) Received: from mailrelay.example.com (gateway [172.19.199.1]) by lists.example.com (Postfix) with ESMTP id DEE6D7E94EFEE for <Mylist@lists.example.com>; Thu, 4 Apr 2019 14:51:41 +0000 (UTC) Received: from EUR01-VE1-obe.outbound.protection.outlook.com (mail-eopbgr140138.outbound.protection.outlook.com [40.107.14.138]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by mailrelay.example.com (Postfix) with ESMTPS id 755B82B6E for <Mylist@lists.example.com>; Thu, 4 Apr 2019 16:51:33 +0200 (CEST) Received: from VI1PR04CA0126.eurprd04.prod.outlook.com (2603:10a6:803:f0::24) by AM6PR04MB4152.eurprd04.prod.outlook.com (2603:10a6:209:4e::22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.1771.13; Thu, 4 Apr 2019 14:36:17 +0000 Received: from VE1EUR02FT025.eop-EUR02.prod.protection.outlook.com (2a01:111:f400:7e06::207) by VI1PR04CA0126.outlook.office365.com (2603:10a6:803:f0::24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.1771.15 via Frontend Transport; Thu, 4 Apr 2019 14:36:17 +0000 Received: from sepo4.example.com (192.38.YYY.YY) by VE1EUR02FT025.mail.protection.outlook.com (10.152.12.109) with Microsoft SMTP Server id 15.20.1750.20 via Frontend Transport; Thu, 4 Apr 2019 14:36:16 +0000 Received: from 10.78.0.165 ([10.78.0.165]) by sepo4.example.com (JAMES SMTP Server 2.3.2-1) with SMTP ID 275 for <Mylist@lists.example.com>; Thu, 4 Apr 2019 16:36:15 +0200 (CEST) Received: from P2KITMBX06WC03.unicph.domain ([fe80::3952:c6b2:a71f:a1de]) by P2KITHUB04W.unicph.domain ([::1]) with mapi id 14.03.0439.000; Thu, 4 Apr 2019 16:36:14 +0200 From: Nyhedsbrev til medlemmer <Mylist@lists.example.com> To: "Mylist@lists.example.com" <Mylist@lists.example.com> Subject: [Listname] Nye arrangementer i praksis Thread-Topic: Nye arrangementer i praksis Thread-Index: AdTq82MCI8LJ6Ah9TTyCBQijzpmbkg== Date: Thu, 4 Apr 2019 16:36:13 +0200 Message-ID: <250E794B36C1E646AF3D81E1F15348C79DA68EA8@P2KITMBX06WC03.unicph.domain> List-Help: <mailto:Mylist-request@lists.example.com?subject=help> List-Subscribe: <mailto:mylist-join@lists.example.com> List-Unsubscribe: <mailto:Mylist-leave@lists.example.com> Reply-To: Mylist <Mylist@external.example.com>, "Mylist@lists.example.com" <Mylist@lists.example.com> Accept-Language: en-US, da-DK Content-Language: en-US X-MS-Exchange-Organization-AuthSource: P2KITHUB04W.unicph.domain X-MS-Has-Attach: yes X-Auto-Response-Suppress: All X-MS-TNEF-Correlator: received-spf: TempError (protection.outlook.com: error in processing during lookup of ant.example: DNS Timeout) Content-Type: multipart/mixed; boundary="_005_250E794B36C1E646AF3D81E1F15348C79DA68EA8P2KITMBX06WC03u_" MIME-Version: 1.0
/Henrik