I can not send emails to yahoo accounts

What is your domain name? Do not post the entire email address.

I am also having the same issue as the several other posters. It is mostly Yahoo.com email addresses, and the return error comes in sometimes 24-36 hours later.

Delivery has failed to these recipients or groups:

Diane Kxxxxxxx (******@yahoo.com)
Your message couldn't be delivered. Despite repeated attempts to contact the recipient's email system it didn't respond.

Contact the recipient by some other means (by phone, for example) and ask them to tell their email admin that it appears that their email system isn't accepting connection requests from your email system. Give them the error details shown below. It's likely that the recipient's email admin is the only one who can fix this problem.

For more information and tips to fix this issue see this article: https://go.microsoft.com/fwlink/?LinkId=389361.

Diagnostic information for administrators:

Generating server: DS0PR11MB8206.namprd11.prod.outlook.com
Total retry attempts: 8

******@yahoo.com
Remote server returned '550 5.4.300 Message expired -> 451 [RL01] Message temporarily deferred'

Original message headers:

Received: from DM4PR11MB5996.namprd11.prod.outlook.com (2603:10b6:8:5f::14) by
 DS0PR11MB8206.namprd11.prod.outlook.com (2603:10b6:8:166::5) with Microsoft
 SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id
 15.20.7386.13; Sat, 9 Mar 2024 15:53:53 +0000
Received: from DS0PR11MB6422.namprd11.prod.outlook.com (2603:10b6:8:c6::21) by
 DM4PR11MB5996.namprd11.prod.outlook.com (2603:10b6:8:5f::14) with Microsoft
 SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id
 15.20.7386.8; Sat, 9 Mar 2024 04:50:58 +0000
Received: from DM6PR11MB4546.namprd11.prod.outlook.com (2603:10b6:5:2a7::24)
 by DS0PR11MB6422.namprd11.prod.outlook.com (2603:10b6:8:c6::21) with
 Microsoft SMTP Server (version=TLS1_2,
 cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7386.6; Sat, 9 Mar
 2024 02:27:21 +0000
ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none;
 b=Z4u7kPr6Opq8UZw2BY6lB+KT5XIbA3vPrI92kYEohi4fM5JCZdFsJXq6SjOqpDOG+VQoD+ftGzkVsTyn/wCriFges2uwYZGyPVHwvS4qfXomnGnmHjrsXcgQsNUuQk+VqTDDemL7qeKM/kMtp2BvnQIRGN0JIV+4UX3k3JBIp1bsdJzI9HtmtId0O4iVcuQDxQok2uQE7hchJnu98YUR5DqpfclZwQgrA1DAxKJB/JoxvKPuS5AapqvyJA66BEW7SLFT9nrniB5kjNR5c2DITY+v7r//PsoLt1H/9xO8WGvonrV6TjxbmbRS1oZQB0zIy8WrwZWSS5aHgVL/Q4F4HA==
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;
 bh=1or4a7xTPkA1fSDuAzZtHdALpuulRXFdGBaMK+W8qhY=;
 b=WcbEiTUh3fNeq8GQo6KPPlnpWP8fhHkkcGS3kcr8J1oXzC6jJumhlQ8YIiTBVw+3Ql5NYtsehtJr6ALG41c9gX8YCkBDRDH6tSKvUSii/4qE3KajjN5F8PsEIPwNBCYNhV2EwrQ0Y/nbeFDIXvyz/3pz1WUfLs40MzP7ttlWdUkh3qg+hOgbKgNhO/7EjTd4fkVB2XDiyOfOhHfsS/OkoPn2AC7cW7Q+zgPLaoKmBWR4ldEKlVaFlOqV1srcym4mTwivPrK+L/vNEE64Uje8JNJKrg66VljdKG5ARL3M0NrEEJ/MMFmcus9Y9b4mIXlBrsIjTsArRjxeavfMuO9CzA==
ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass
 smtp.mailfrom=libertytaxglendora.com; dmarc=pass action=none
 header.from=libertytaxglendora.com; dkim=pass
 header.d=libertytaxglendora.com; arc=none
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
 d=NETORG3143950.onmicrosoft.com; s=selector2-NETORG3143950-onmicrosoft-com;
 h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck;
 bh=1or4a7xTPkA1fSDuAzZtHdALpuulRXFdGBaMK+W8qhY=;
 b=GLhcTzLLXR3HL8YAmlI5/9B87utdKFvjVERqP/dQW9ZJgJEhvLHw2nQAL5/i+DrTBoqFDOYyuFG6b++M1EGFxzxQoB756YspOJ8z3408Zekc4eHlOPBJNsb314NNk7KP8lFQWZRWvMgXBLW6iyUvWQAGwXHVBGFU+I5Dr70nhxg=
Received: from SN7PR11MB6995.namprd11.prod.outlook.com (2603:10b6:806:2ae::11)
 by DM6PR11MB4546.namprd11.prod.outlook.com (2603:10b6:5:2a7::24) with
 Microsoft SMTP Server (version=TLS1_2,
 cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7386.9; Fri, 8 Mar
 2024 22:04:14 +0000
Received: from SN7PR11MB6995.namprd11.prod.outlook.com
 ([fe80::317e:472:f8e:1eaf]) by SN7PR11MB6995.namprd11.prod.outlook.com
 ([fe80::317e:472:f8e:1eaf%7]) with mapi id 15.20.7339.009; Fri, 8 Mar 2024
 22:04:14 +0000

Domain name is ppshr.co.uk

Does that shed any light on the problem? I hope so!

Did you resplve this issue as I also can send to anyone but Yahoo?

Kerry
This problem with 365 has been a horrible situation. Most GODADDY customers have been unable to email any
Yahoo ( AOL, Verizon) accounts since last week.

We are frustrated, we are losing money, and Microsoft needs to fix this ASAP.

The links to the help article is of no help even GODADDY can't fix this and everyone here has had their
DNS records checked over and over.

Personally, I have spent nearly 10 hours with different IT and technicians. I can't even email myself
using 365.

Sorry I am writing here, I am venting and hoping someone at Microsoft will care enough to fix these issues.

Thank you
Jamie G

Its now 4 21 and I am testing again

  To send this message again,  click here. This message is able to be sent again MO Microsoft Outlook **ReplyReply allForward







To:​Jamie Glaser​ Sun 3/10/2024 5:28 PM

Its now 4 21 and I am testing againOutlook Item 

Delivery has failed to these recipients or groups:

Your message couldn't be delivered. Despite repeated attempts to contact the recipient's email system it didn't respond.

Contact the recipient by some other means (by phone, for example) and ask them to tell their email admin that it appears that their email system isn't accepting connection requests from your email system. Give them the error details shown below. It's likely that the recipient's email admin is the only one who can fix this problem.

For more information and tips to fix this issue see this article: https://go.microsoft.com/fwlink/?LinkId=389361.

Diagnostic information for administrators:

Generating server: PH7PR19MB6063.namprd19.prod.outlook.com
Receiving server: PH7PR19MB6063.namprd19.prod.outlook.com
Total retry attempts: 4

******@aol.com
3/10/2024 11:28:40 PM - Server at PH7PR19MB6063.namprd19.prod.outlook.com returned '550 5.4.300 Message expired -> 421 4.4.2 Connection dropped due to SocketError'
3/10/2024 11:18:26 PM - Server at 67.195.204.80 (67.195.204.80) returned '421 4.4.2 Connection dropped due to SocketError'