I am having issue that Yahoo emails are not reaching recipients.

I have been getting bounce backs from any email sent from any of my personal MS email accounts (hotmail / outlook) and from my MS work email (Microsoft Exchange) to anyone using a Yahoo email (including rogers.com emails that is hosted by yahoo). Here is the thread of two bounce backs (private email names removed):

PERSONAL EMAIL:

Diagnostic information for administrators:

Generating server: CH3PR12MB8903.namprd12.prod.outlook.com
Receiving server: CH3PR12MB8903.namprd12.prod.outlook.com
Total retry attempts: 5

******@rogers.com
3/11/2024 6:15:34 PM - Server at CH3PR12MB8903.namprd12.prod.outlook.com returned '550 5.4.300 Message expired -> 421 4.4.2 Connection dropped due to SocketError'
3/11/2024 5:29:51 PM - Server at mx-rogers.mail.am0.yahoodns.net (67.195.204.82) returned '421 4.4.2 Connection dropped due to SocketError'

Original message headers:

Received: from PH7PR12MB5736.namprd12.prod.outlook.com (2603:10b6:510:1e3::19)
 by CH3PR12MB8903.namprd12.prod.outlook.com (2603:10b6:610:17a::7) with
 Microsoft SMTP Server (version=TLS1_2,
 cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7362.36; Mon, 11 Mar
 2024 14:56:03 +0000
Received: from PH7PR12MB7018.namprd12.prod.outlook.com (2603:10b6:510:1b8::14)
 by PH7PR12MB5736.namprd12.prod.outlook.com (2603:10b6:510:1e3::19) with
 Microsoft SMTP Server (version=TLS1_2,
 cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7362.35; Mon, 11 Mar
 2024 03:53:10 +0000
ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none;
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ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com;
 s=arcselector9901;
 h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1;
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ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=none; dmarc=none;
 dkim=none; arc=none
Received: from PH0PR12MB8797.namprd12.prod.outlook.com (2603:10b6:510:28d::12)
 by PH7PR12MB7018.namprd12.prod.outlook.com (2603:10b6:510:1b8::14) with
 Microsoft SMTP Server (version=TLS1_2,
 cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7362.33; Sun, 10 Mar
 2024 18:15:33 +0000
Received: from PH0PR12MB8797.namprd12.prod.outlook.com
 ([fe80::de10:67dd:3077:a64a]) by PH0PR12MB8797.namprd12.prod.outlook.com
 ([fe80::de10:67dd:3077:a64a%2]) with mapi id 15.20.7362.031; Sun, 10 Mar 2024
 18:15:33 +0000
From: <******@hotmail.ca>
To:  <****@rogers.com>
Subject: Test 2
Thread-Topic: Test 2
Thread-Index: AQHacxbxjST3ODP1EEa4xnLawB/n9Q==
Date: Sun, 10 Mar 2024 18:15:33 +0000
Message-ID: <******@PH0PR12MB8797.namprd12.prod.outlook.com>
Accept-Language: en-CA, en-US
Content-Language: en-CA
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
x-ms-exchange-messagesentrepresentingtype: 1
x-tmn: [Hd19ROTNRxI8YTa765sI8VckalUp5DVv]
x-ms-publictraffictype: Email
x-ms-traffictypediagnostic:
PH0PR12MB8797:EE_|PH7PR12MB7018:EE_|PH7PR12MB5736:EE_|CH3PR12MB8903:EE_
x-ms-office365-filtering-correlation-id: 7fdb03bb-3032-4074-6b0d-08dc412e13ba
x-ms-exchange-slblob-mailprops: 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x-ms-exchange-antispam-messagedata-chunkcount: 1
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Content-Type: text/plain; charset="us-ascii"
Content-ID: <07E7D29481E3E043A0B4ABBA0925ECD4@sct-15-20-4755-11-msonline-outlook-71ea3.templateTenant>
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-AuthSource: PH0PR12MB8797.namprd12.prod.outlook.com
X-MS-Exchange-CrossTenant-RMS-PersistedConsumerOrg: 00000000-0000-0000-0000-000000000000
X-MS-Exchange-CrossTenant-Network-Message-Id: 7fdb03bb-3032-4074-6b0d-08dc412e13ba
X-MS-Exchange-CrossTenant-rms-persistedconsumerorg: 00000000-0000-0000-0000-000000000000
X-MS-Exchange-CrossTenant-originalarrivaltime: 10 Mar 2024 18:15:33.4712
 (UTC)
X-MS-Exchange-CrossTenant-fromentityheader: Hosted
X-MS-Exchange-CrossTenant-id: 84df9e7f-e9f6-40af-b435-aaaaaaaaaaaa
X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH7PR12MB7018
Return-Path: *****@hotmail.ca
X-OriginatorOrg: sct-15-20-4755-11-msonline-outlook-71ea3.templateTenant

WORK EMAIL ON MS EXCHANGE SERVER / USING BELL DNS (MARKAYHOMES.COM)
Diagnostic information for administrators:
Generating server: SJ0PR10MB5891.namprd10.prod.outlook.com
Receiving server: SJ0PR10MB5891.namprd10.prod.outlook.com 
Total retry attempts: 4
********@rogers.com
3/9/2024 3:28:06 PM - Server at SJ0PR10MB5891.namprd10.prod.outlook.com returned '550 5.4.300 Message expired -> 421 4.4.2 Connection dropped due to SocketError'
3/9/2024 3:08:23 PM - Server at mx-rogers.mail.am0.yahoodns.net (67.195.204.82) returned '421 4.4.2 Connection dropped due to SocketError'
Original message headers:
Received: from SJ0PR10MB4765.namprd10.prod.outlook.com (2603:10b6:a03:2af::9)
 by SJ0PR10MB5891.namprd10.prod.outlook.com (2603:10b6:a03:425::16) with
 Microsoft SMTP Server (version=TLS1_2,
 cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7362.33; Sat, 9 Mar
 2024 13:33:43 +0000
Received: from PH7PR10MB6058.namprd10.prod.outlook.com (2603:10b6:510:1fe::6)
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 Microsoft SMTP Server (version=TLS1_2,
 cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7362.31; Sat, 9 Mar
 2024 02:29:56 +0000
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 Microsoft SMTP Server (version=TLS1_2,
 cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7362.24; Fri, 8 Mar
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Received: from DM6PR10MB3244.namprd10.prod.outlook.com
 ([fe80::517f:e187:670e:24b2]) by DM6PR10MB3244.namprd10.prod.outlook.com
 ([fe80::517f:e187:670e:24b2%3]) with mapi id 15.20.7362.024; Fri, 8 Mar 2024
 15:28:06 +0000
From: <******@markayhomes.com>
To: <*****@rogers.com>, 
Subject: RE: 1176 Bellview Cres. -Construction permit - need truss/floor/HVAC?
Thread-Topic: 1176 Bellview Cres. -Construction permit - need
 truss/floor/HVAC?
Thread-Index: AQHacW03ly5nrDspoUyc4EUyEqvDBQ==
Date: Fri, 8 Mar 2024 15:28:05 +0000
Message-ID: <******@DM6PR10MB3244.namprd10.prod.outlook.com>
References: <******@DM6PR10MB3244.namprd10.prod.outlook.com>
 <******@rogers.com>
In-Reply-To: <******@rogers.com>
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ReplyForward

Hi Ron!

I am a small business owner experiencing this same issue that others described. Would you be able to take a look at my records to see if I am missing anything that would help my emails go through?

My domain is goldenstring.com

Thank you so so much

That greek diagnostics means a lot to email admins/techies. Good luck.

I had this issue with a few different domains start in Feb 2024. Apparently this was something planned on Yahoo/AOL to make our lives harder.

I was able to correct the issue by creating DKIM signatures in 365

The steps are located here - https://learn.microsoft.com/en-us/microsoft-365/security/office-365-security/email-authentication-dkim-configure?view=o365-worldwide

You will need access to your DNS to add 2 CNAME records.

Hope this helps.

it says;

Delivery has failed to these recipients or groups:

then it prints the e-mial i sent to - sbcgloable / yahoo / aol are all failing

then a bunch of greek diagnostics.

GoDaddy resolved my issue in January but now its happening again.

I called them yesterday and they said its a known issue that should be resolved in 24-72 hours.

I have my doubts