Office will not send emails How to fix

Question

Your message wasn't delivered because the recipient's email provider rejected it.

Generating server: CH2PR12MB4264.namprd12.prod.outlook.com

hrobb1956@gmail.com
Remote server returned '550 5.7.705 Access denied, tenant has exceeded threshold. For more information please go to http://go.microsoft.com/fwlink/?LinkId=526653 AS(1231) [IA1PR12MB8585.namprd12.prod.outlook.com 2023-11-15T14:46:59.065Z 08DBE42056DEE4CB]'

Original message headers:

Received: from CH2PR12MB4264.namprd12.prod.outlook.com
 ([fe80::7774:7236:6eed:42d2]) by CH2PR12MB4264.namprd12.prod.outlook.com
 ([fe80::7774:7236:6eed:42d2%7]) with mapi id 15.20.7002.019; Wed, 15 Nov 2023
 14:46:59 +0000
MIME-Version: 1.0
Content-Type: text/plain
Date: Wed, 15 Nov 2023 14:46:59 +0000
Message-ID:
	<4abb7059d8b149ac8e115364773b1a49CH2PR12MB4264C598AC7602EC1075A9C7CFB1A@CH2PR12MB4264.namprd12.prod.outlook.com>
Subject: try 1

Answer 1

Hi @Harry ,

According to my research, the error code '550 5.7.705 Service unavailable. Access denied, tenant has exceeded threshold.'” occurs when there are too much spam or bulk mail has been sent from your organization so Microsoft blocks users in your organization from sending outgoing emails.

To narrow down this issue, we recommend you to firstly run a message trace to check how many emails are sending out from you in the past 1 week, then you can refer to the solution in the following document to see if it can help to fix this problem for you: "Tenant has exceeded threshold" NDR when mail is sent from your organization.

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