Amazon SES - Email Delivery Issues

Hi,

We have recently moved to A-SES and in about two weeks time find our emails being rejected by all Microsoft Domains (Hotmail, Outlook, Live). We have requested support from MS but no resolution from the yet. Any ideas on why this is happened and how to fix it will highly appreciated.

Received: from GV2PR02MB9351.eurprd02.prod.outlook.com (2603:10a6:150:d6::8) by PA4PR02MB6783.eurprd02.prod.outlook.com with HTTPS; Wed, 19 Oct 2022 06:29:08 +0000 Received: from DUZPR01CA0002.eurprd01.prod.exchangelabs.com (2603:10a6:10:3c3::8) by GV2PR02MB9351.eurprd02.prod.outlook.com (2603:10a6:150:d6::8) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5723.33; Wed, 19 Oct 2022 06:29:05 +0000 Received: from DB5EUR01FT009.eop-EUR01.prod.protection.outlook.com (2603:10a6:10:3c3:cafe::70) by DUZPR01CA0002.outlook.office365.com (2603:10a6:10:3c3::8) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5723.34 via Frontend Transport; Wed, 19 Oct 2022 06:29:05 +0000 Authentication-Results: spf=pass (sender IP is 23.251.244.10) smtp.helo=e244-10.smtp-out.me-south-1.amazonses.com; dkim=pass (signature was verified) header.d=amazonses.com;dmarc=pass action=none header.from=me-south-1.amazonses.com;compauth=pass reason=100 Received-SPF: Pass (protection.outlook.com: domain of e244-10.smtp-out.me-south-1.amazonses.com designates 23.251.244.10 as permitted sender) receiver=protection.outlook.com; client-ip=23.251.244.10; helo=e244-10.smtp-out.me-south-1.amazonses.com; pr=C Received: from e244-10.smtp-out.me-south-1.amazonses.com (23.251.244.10) by DB5EUR01FT009.mail.protection.outlook.com (10.152.4.124) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5723.20 via Frontend Transport; Wed, 19 Oct 2022 06:29:04 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/simple; s=pxwbun6mrml4cgferz3jfevhto3a454p; d=amazonses.com; t=1666160942; h=Date:From:To:Message-ID:Subject:MIME-Version:Content-Type:Feedback-ID; bh=J6Pig4p4IV8W45etDFvNhduFUDyBac4QxT0l/Ho+spA=; b=KtUsNw+wLdsos+UHF4uCdIUUSK//dGaXV5MdMsi8qrI1JzzpZMIymgzE/yGQvglo 4cF/gautSbWhSRNa0kaK4M26LcQUEEcioTofBcOmmtW9Yu2b6fBFNmv4rNjUAVo8jPl eak0ly0z+lyXZgon3mR212z+frEI5Jj4wX4RkMDg= Date: Wed, 19 Oct 2022 06:29:02 +0000 From: MAILER-DAEMON@me-south-1.amazonses.com To: =?UTF-8?B?Sm9ic0Zvck5hdGlvbmFscy5jb20gfCDZiNi42KfYptmBINmE2YTZhdmI2Kc=?= =?UTF-8?B?2LfZhtmK2YY=?= noreply@domain.com Message-ID: 01120183eeee5bed-50487e7a-e3d1-4eb3-bce0-3d244d9a849e-000000@me-south-1.amazonses.com Subject: Delivery Status Notification (Failure) MIME-Version: 1.0 Content-Type: multipart/report; boundary="----=Part_105619_1922643110.1666160942157"; report-type=delivery-status Feedback-ID: 1.me-south-1.FsNalHR751PydM6AbzVDCn3fk6jftGrTelGSpbQrdX8=:AmazonSES X-SES-Outgoing: 2022.10.19-23.251.244.10 Return-Path: <> X-MS-Exchange-Organization-ExpirationStartTime: 19 Oct 2022 06:29:04.9802 (UTC) X-MS-Exchange-Organization-ExpirationStartTimeReason: OriginalSubmit X-MS-Exchange-Organization-ExpirationInterval: 1:00:00:00.0000000 X-MS-Exchange-Organization-ExpirationIntervalReason: OriginalSubmit X-MS-Exchange-Organization-Network-Message-Id: 19383183-e548-47a0-cc92-08dab19b3859 X-EOPAttributedMessage: 0 X-EOPTenantAttributedMessage: 58e95f06-ccc9-44d4-9fcb-30a6a2317244:0 X-MS-Exchange-Organization-MessageDirectionality: Incoming X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DB5EUR01FT009:EE|GV2PR02MB9351:EE_ X-MS-Exchange-Organization-AuthSource: DB5EUR01FT009.eop-EUR01.prod.protection.outlook.com X-MS-Exchange-Organization-AuthAs: Anonymous X-MS-Office365-Filtering-Correlation-Id: 19383183-e548-47a0-cc92-08dab19b3859 X-MS-Exchange-Organization-SCL: 1 X-Microsoft-Antispam: BCL:0; X-Forefront-Antispam-Report: CIP:23.251.244.10;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:e244-10.smtp-out.me-south-1.amazonses.com;PTR:e244-10.smtp-out.me-south-1.amazonses.com;CAT:NONE;SFS:(13230022)(1930700014)(451199015)(26005)(9686003)(6486002)(45080400002)(83380400001)(36736006)(5660300002)(7636003)(564344004)(1096003)(6916009)(8676002)(79850400001)(78352004)(15650500001)(356005)(9316004)(956004)(7596003)(336012)(2616005)(42882007)(7696005)(71280400001);DIR:INB; X-MS-Exchange-CrossTenant-OriginalArrivalTime: 19 Oct 2022 06:29:04.2928 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 19383183-e548-47a0-cc92-08dab19b3859 X-MS-Exchange-CrossTenant-Id: 58e95f06-ccc9-44d4-9fcb-30a6a2317244 X-MS-Exchange-CrossTenant-AuthSource: DB5EUR01FT009.eop-EUR01.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: Internet X-MS-Exchange-Transport-CrossTenantHeadersStamped: GV2PR02MB9351 X-MS-Exchange-Transport-EndToEndLatency: 00:00:03.8273277 X-MS-Exchange-Processed-By-BccFoldering: 15.20.5723.034 X-Microsoft-Antispam-Mailbox-Delivery: ucf:0;jmr:0;auth:0;dest:I;ENG:(910001)(944506478)(944626604)(920097)(930097); X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?OpC70J4x+Ajx4Ydd/FDUCrQV/rArftXTS8qE7t53PYCKnusZI8M/6QIPCKxy?= =?us-ascii?Q?Z4jfgJZsJx0mv+r3D4iTMvcAAAD6lByxGx0fHAUKjj/OiRCp8OIvK0Hmwdj5?= =?us-ascii?Q?D/pJxUCxEsgAJXpTcvD8rXrNvo24cg8pxN4yOIAxQgfnb9LHOCJzHcmUzncI?= =?us-ascii?Q?n1TDbtT+tON9HF+Kb7Biq7MK8BAz8zqlviCTHqngqN2HGvgi6Xowukvkay0Y?= =?us-ascii?Q?mKC27TFKOB8mJIc3GvTpffJIcVz+dZEEUrd+Gqx+hY3sXPUot0UTsFy279Tw?= =?us-ascii?Q?qDIoxyEMzI0qLbTAPjFQi6pIiWRxTwpYmuLjBIy441MfVOQdc/BscwjbsKfR?= =?us-ascii?Q?zJV36TeRbWSc7UN8cRY8FJVfL2L5nlfh1xLflGCZVwUfkwTHN9GQWPBK8R/j?= =?us-ascii?Q?CujSs6z5ysjZ3m7tEChbOR9REuV5SsInXZwhsKQPRfqTvSJX8DyI5cw//gar?= =?us-ascii?Q?/ACfJUv1a0Tn1ii0aiVpECCSeqGC6eTDCIPlnuuemJSshGdY3CYOtgxNvDIX?= =?us-ascii?Q?RUG6YvehvHBm8ps3V7W25uDNHDylkDALUPSlM7gNHdKPexFT459eoVLIEVwS?= =?us-ascii?Q?9U3kMOCBQpqEVGu7tzPUcS5pnewAO0zqJsqf0TKaus4wH/xugQTDCuc8N72z?= =?us-ascii?Q?xD7wH2zUCojUVMrJhNhASL+NPF6TjH0traVK1O7FggHC8sYbkvxNsohTHvDL?= =?us-ascii?Q?voFmWtHtSW51C+kYV+37yWWXVnqT3tnPi5tWlSRdXpNZ4VMamXco5oNupq/w?= =?us-ascii?Q?SiIVSpgXT3vkyURbvs+C5v1JBtQig7Wd9RG/8yTXKOTzAc0FhEeqL0ZJKbQS?= =?us-ascii?Q?6V65mWpDy5lh1CotQwEnnzVpIdVOU4LYZnhGJ1Mpd2TwkIYLB9xYMFpvFTWe?= =?us-ascii?Q?sWvZ9fuOLo2QzJUeeHK+V31+aRb35uJAoPR7HWtUXtlDbV/MPFQTohYzADDn?= =?us-ascii?Q?HHBXvvMZAR6M3yFqh3VC8mjlTBrUtTgzEmPBfwFWgEYAOpj12KuL66UrCg4i?= =?us-ascii?Q?iABUNiVo0Pdvr54vHlPv3G7/rxTC1K39bbDnLbFEH0A3XuwqS8WJJoWN9C8l?= =?us-ascii?Q?0oG4BO1oUDvnU7reXgIg7FGyDcy7cfyvMMChCKs+rPpO+xj2WdUGo6+v+R42?= =?us-ascii?Q?ZzGIt1QUsDvH1K6Jmo1eelTsquHCf+5nW14byoBBd2sdNwzLOb5GJYx+sr5l?= =?us-ascii?Q?pmd7QAgmwbTMl60R4sPcgZIA/vwSJ6H0ieMXpVSSwZ5o5S0dA8491191er6n?= =?us-ascii?Q?sgHPlXOnXFb8BHGds6fNTaCzphtVfn4VdNy9NNXbxA+A0zqBMgo9qp7MsGRc?= =?us-ascii?Q?wf+rrtpARiKyhUpaHnwyNuUmQG7gNoZoJD/yzlDXSnC498jINZG6+wS2seZH?= =?us-ascii?Q?NoMB39h2aqayohzEgdatMkSOpopZcemkWD40Uo1E60kcxoseKdesvRrnN0Ba?= =?us-ascii?Q?/XekQwZZSPyY05USmYR7b9Jx3GJ3ib1PpA3ZNxzSNlu/cdf27CQ6ho3/0AlA?= =?us-ascii?Q?//UcDoIw5WGf+V8050lCxGBVkNL7q/YU6Z58Odq/oGNVFFlIA6o8EsRpQaWu?= =?us-ascii?Q?GaJodr/zd+vld0ADjp/IHxNWLR128n8zEhvjlXp4CnmXt6FNwOjoBdIjfUj8?= =?us-ascii?Q?p+sjUmJfPeqn1zgHhpzI+gJilNcI9HDpWo0Zbule+uL2kuboJOyN3s6XV/He?= =?us-ascii?Q?LuPKDPkZhn8iw9LDTsa3r0hCHYyyz4W0A/4bugLOtN8zt+4dZzuOfKmAYlsl?= =?us-ascii?Q?SjGJxl6l8A=3D=3D?=