Office will not send emails How to fix

Harry 0 Reputation points

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

Generating server:
Remote server returned '550 5.7.705 Access denied, tenant has exceeded threshold. For more information please go to AS(1231) [ 2023-11-15T14:46:59.065Z 08DBE42056DEE4CB]'

Original message headers:

Received: from
 ([fe80::7774:7236:6eed:42d2]) by
 ([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
Subject: try 1
A family of Microsoft email and calendar products.
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  1. Faery Fu-MSFT 14,231 Reputation points Microsoft Vendor

    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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