[http://products.office.com/en-us/CMSImages/Office365Logo_Orange.png?versi...] Your message to rektorat(a)ebz-bs.de couldn't be delivered. A custom mail flow rule created by an admin at ebz.onmicrosoft.com has blocked your message. SPF check failed stapf Office 365 ebz-bs.de Sender Action Required Blocked by mail flow rule How to Fix It An email admin at ebz.onmicrosoft.com has created a custom mail flow rule that blocks messages that meet certain conditions, and it appears that your message has met one or more of those conditions. * Check the text above for a custom message from the email admin that may help explain why your message was blocked and how you might be able to fix it. For example, removing prohibited words from the message or sending the message from a different email account may be sufficient to deliver your message. If you've tried and you're still not able to fix the problem, consider contacting the email admin at ebz.onmicrosoft.com to discuss what to do. While they're unlikely to remove or relax the rule, if you have a legitimate need to deliver your message they may offer guidance for how to do so. ________________________________ More Info for Email Admins Status code: 550 5.7.1_ETR This error occurs because an email admin at ebz.onmicrosoft.com has created a custom mail flow rule that has blocked the sender's message. In some cases, the sender can change the message so it no longer violates the rule. However, depending on the rule's conditions, it's possible that the only way to deliver the message is to change the rule itself, and only an email admin at ebz.onmicrosoft.com can do that. Although it's possible the rule is unintentionally flawed or it's stricter than the admin intended, it may be working exactly as they want it to. Original Message Details Created Date: 7/20/2020 9:47:03 AM Sender Address: stapf(a)zapf.in Recipient Address: rektorat(a)ebz-bs.de Subject: Resolution: Aus der Krise lernen - Beschluss der ZaPF Error Details Reported error: 550 5.7.1 TRANSPORT.RULES.RejectMessage; the message was rejected by organization policy DSN generated by: DB6PR01MB3800.eurprd01.prod.exchangelabs.com Message Hops HOP TIME (UTC) FROM TO WITH RELAY TIME 1 7/20/2020 9:47:03 AM vpn510-221.rzuser.uni-heidelberg.de mail01.uni-heidelberg.de ESMTPSA * 2 7/20/2020 9:47:04 AM mail01.uni-heidelberg.de relay.uni-heidelberg.de ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256 1 sec 3 7/20/2020 9:47:04 AM relay.uni-heidelberg.de DB5EUR01FT008.mail.protection.outlook.com Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) * 4 7/20/2020 9:47:04 AM DB5EUR01FT008.eop-EUR01.prod.protection.outlook.com DBBPR09CA0029.outlook.office365.com Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) * 5 7/20/2020 9:47:04 AM DBBPR09CA0029.eurprd09.prod.outlook.com DB6PR01MB3800.eurprd01.prod.exchangelabs.com Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) * Original Message Headers Received: from DBBPR09CA0029.eurprd09.prod.outlook.com (2603:10a6:10:d4::17) by DB6PR01MB3800.eurprd01.prod.exchangelabs.com (2603:10a6:6:55::14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3195.18; Mon, 20 Jul 2020 09:47:04 +0000 Received: from DB5EUR01FT008.eop-EUR01.prod.protection.outlook.com (2603:10a6:10:d4:cafe::1e) by DBBPR09CA0029.outlook.office365.com (2603:10a6:10:d4::17) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3195.18 via Frontend Transport; Mon, 20 Jul 2020 09:47:04 +0000 Authentication-Results: spf=fail (sender IP is 129.206.100.212) smtp.mailfrom=zapf.in; ebz-bs.de; dkim=none (message not signed) header.d=none;ebz-bs.de; dmarc=permerror action=none header.from=zapf.in; Received-SPF: Fail (protection.outlook.com: domain of zapf.in does not designate 129.206.100.212 as permitted sender) receiver=protection.outlook.com; client-ip=129.206.100.212; helo=relay.uni-heidelberg.de; Received: from relay.uni-heidelberg.de (129.206.100.212) by DB5EUR01FT008.mail.protection.outlook.com (10.152.4.96) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3195.18 via Frontend Transport; Mon, 20 Jul 2020 09:47:04 +0000 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: =?us-ascii?q?A2AqAwDIZhVf//xkzoFgHAEBAQEBAQc?= =?us-ascii?q?BARIBAQQEAQGCCoNEKoURkGyDM5h7CwEBAQEBAQEBAQMBBC8EAQGEZYIGAiQ?= =?us-ascii?q?4EwIDAQEBAwIFAQEGAQEBAQEGBIZVhhsiTUQCBBiDfYJtD45Sm3qBMokbgRk?= =?us-ascii?q?QgTiBU4Rsg2yCRxqCAIFEA4IsLj6FCoJJM4ItBJJSiB+PXYp5hxqOJYVdgR8?= =?us-ascii?q?PIQqRJo4YhUerYYFqgXqCJAGCBU8ZDZxnP2oCBgEHAQEDCY95AQE?= Received: from mail01.uni-heidelberg.de ([129.206.100.252]) by relay.uni-heidelberg.de with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 20 Jul 2020 11:47:04 +0200 Received: from vpn510-221.rzuser.uni-heidelberg.de (vpn510-221.rzuser.uni-heidelberg.de [147.142.10.221]) (Authenticated sender: pb438) by mail01.uni-heidelberg.de (Postfix) with ESMTPSA id 279FA300719FC for <rektorat(a)ebz-bs.de&gt;; Mon, 20 Jul 2020 11:47:03 +0200 (CEST) Content-Type: multipart/mixed; boundary="===============3097269242546111107==" MIME-Version: 1.0 From: stapf(a)zapf.in To: rektorat(a)ebz-bs.de Subject: Resolution: Aus der Krise lernen - Beschluss der ZaPF Message-ID: <20200720094703.279FA300719FC(a)mail01.uni-heidelberg.de&gt; Date: Mon, 20 Jul 2020 11:47:03 +0200 (CEST) Return-Path: stapf(a)zapf.in X-EOPAttributedMessage: 0 X-EOPTenantAttributedMessage: 4d4906a3-f148-4150-870e-71fbc1886917:0 X-Forefront-Antispam-Report: EFV:NLI; X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: ec2e5f43-807b-4b1b-8c04-08d82c91dbe1 X-MS-TrafficTypeDiagnostic: DB6PR01MB3800: