Hi gents, Apologies for the lack of reply, I was waiting for my new account to get send privledges.
As an example header, I have provided one below from a test account. The thing to note is that the Original server (ending in hostyourservices.net) sends outbound through a mail cluster that we have other servers send through as well, about half end in hostyourservices.net and about half don't. Any domain that does NOT end in 'hostyourservices.net' will happily be received by Outlook at whatever SCL score is appropriate for that email. However anything ending in hostyourservices.net will get a SCL 9. We have moved the domains between the servers and sent the identical emails, and we always find, consistently, that anything ending in hostyourservices.net will get SCL9 and that some domain (we've tried a dozen or so personally) sending from the other server hostname will get a SCL1. Microsoft is clearing punishing that domain, but we can't for the life of us work out why, and we are having zero luck with their support, whom we've been trying to explain the issue to for months. Anyone who has a contact with Microsoft that can help would be fantastic, as this happened years ago and the only fix was for microsoft to intervene. Cheers, ====================== Received: from JH0PR01MB6253.apcprd01.prod.exchangelabs.com (2603:1096:990:9c::13) by SEYPR01MB6185.apcprd01.prod.exchangelabs.com with HTTPS; Mon, 4 Dec 2023 05:22:54 +0000 Received: from CH0P223CA0030.NAMP223.PROD.OUTLOOK.COM (2603:10b6:610:116::6) by JH0PR01MB6253.apcprd01.prod.exchangelabs.com (2603:1096:990:9c::13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7046.33; Mon, 4 Dec 2023 05:22:44 +0000 Received: from SN1PEPF0002636E.namprd02.prod.outlook.com (2603:10b6:610:116:cafe::27) by CH0P223CA0030.outlook.office365.com (2603:10b6:610:116::6) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7046.33 via Frontend Transport; Mon, 4 Dec 2023 05:22:42 +0000 Authentication-Results: spf=pass (sender IP is 110.232.143.186) smtp.mailfrom=datamaster.net.au; dkim=pass (signature was verified) header.d=datamaster.net.au;dmarc=bestguesspass action=none header.from=datamaster.net.au;compauth=pass reason=109 Received-SPF: Pass (protection.outlook.com: domain of datamaster.net.au designates 110.232.143.186 as permitted sender) receiver=protection.outlook.com; client-ip=110.232.143.186; helo=m4.out3.mxs.au; pr=C Received: from m4.out3.mxs.au (110.232.143.186) by SN1PEPF0002636E.mail.protection.outlook.com (10.167.241.139) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7068.20 via Frontend Transport; Mon, 4 Dec 2023 05:22:41 +0000 X-IncomingTopHeaderMarker: OriginalChecksum:8F96A8C1FD1A19AB5E6201A48BFCDE111D7C7542297063C2C4A7F659C437C315;UpperCasedChecksum:EFAA2613BE81E0971DB83B7DCF94896C322AB863DEB0C16D67C74A37F8938E57;SizeAsReceived:2358;Count:23 Received: from syn07be.syd6.hostyourservices.net ( syn07be.syd6.hostyourservices.net [110.232.143.84]) by out3.mxs.au (Halon) with ESMTPS (TLSv1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 id 240ba464-9265-11ee-b4c2-00163c573069 for <nxd...@outlook.com>; Mon, 04 Dec 2023 16:22:38 +1100 (AEDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=datamaster.net.au; s=default; h=Content-Transfer-Encoding:Content-Type: Message-ID:Subject:To:From:Date:MIME-Version:Sender:Reply-To:Cc:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:In-Reply-To:References:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=ZyAXWNyS2Wa8EhZsbJxuOR7x/gpVP+u/0b54l7af8VE=; b=gxvFLIJyFqvQ1g6tV/vvOE3V8y IgtL9DX65LcaKy3ttKitq/JQNiPVi8hru2ckBLKBygjH1da9H2extT+BjAuXwdoUGxLYhH8gW1FhY NpNOZBuqKI17AvA16pc6e4k3XngPmQKsnZ+JwJOTnFebFwOZhbSuSwBFd5zfMj2lAPv7E27lbeHNi 1KQQ/uiPa8c0I9x/9l7xFnYa5GtVwSefD1vp/3dJAgTc/poMOD0Pd8IAAuUsYTJtlfHh95mKO2kI6 Nt3zq03QSBqLrOsHXPDi1Ah+GtLiC40XsvmprnS3viiNeqkrjNxZerc324YCnM/a/BBrTU1T2w0jP QxKqI76w==; Received: from [::1] (port=43518 helo=syn07be.syd6.hostyourservices.net) by syn07be.syd6.hostyourservices.net with esmtpa (Exim 4.96.2) (envelope-from <j...@datamaster.net.au>) id 1rA1Pi-004NLx-2d for nxd...@outlook.com; Mon, 04 Dec 2023 16:22:38 +1100 Date: Mon, 04 Dec 2023 16:22:38 +1100 From: j...@datamaster.net.au To: nxd...@outlook.com Subject: Follow up for support request 'SYN-E4994732' User-Agent: Roundcube Webmail/1.6.0 Message-ID: <396d8174404677404d41dbb78b991...@datamaster.net.au> X-Sender: j...@datamaster.net.au Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - syn07be.syd6.hostyourservices.net X-AntiAbuse: Original Domain - outlook.com X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - datamaster.net.au X-Get-Message-Sender-Via: syn07be.syd6.hostyourservices.net: authenticated_id: j...@datamaster.net.au X-Authenticated-Sender: syn07be.syd6.hostyourservices.net: j...@datamaster.net.au X-Source: X-Source-Args: X-Source-Dir: X-IncomingHeaderCount: 23 Return-Path: j...@datamaster.net.au X-MS-Exchange-Organization-ExpirationStartTime: 04 Dec 2023 05:22:42.0023 (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: bcaee30b-17c4-4a2f-d719-08dbf4890a16 X-EOPAttributedMessage: 0 X-EOPTenantAttributedMessage: 84df9e7f-e9f6-40af-b435-aaaaaaaaaaaa:0 X-MS-Exchange-Organization-MessageDirectionality: Incoming X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SN1PEPF0002636E:EE_|JH0PR01MB6253:EE_|SEYPR01MB6185:EE_ X-MS-Exchange-Organization-AuthSource: SN1PEPF0002636E.namprd02.prod.outlook.com X-MS-Exchange-Organization-AuthAs: Anonymous X-MS-UserLastLogonTime: 12/4/2023 5:19:32 AM X-MS-Office365-Filtering-Correlation-Id: bcaee30b-17c4-4a2f-d719-08dbf4890a16 X-MS-Exchange-EOPDirect: true X-Sender-IP: 110.232.143.186 X-SID-PRA: j...@datamaster.net.au X-SID-Result: PASS X-MS-Exchange-Organization-PCL: 2 X-MS-Exchange-Organization-SCL: 9 X-Microsoft-Antispam: BCL:0; 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Which header? Is it being used as the > envelope sender MAIL FROM domain name? > > > > If you used real domain names and gave copy-and-paste examples, people > would be able to help more. > > > > — > > Robert L Mathews > > _______________________________________________ > > mailop mailing list > > mailop@mailop.org > > https://list.mailop.org/listinfo/mailop > > _______________________________________________ > mailop mailing list > mailop@mailop.org > https://list.mailop.org/listinfo/mailop >
_______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
