Diagnostic information

Question

We are getting this message every email we send. help

Diagnostic information for administrators:

Generating server: DM5PR16MB1673.namprd16.prod.outlook.com
adalton@farmersagent.com
Remote Server returned '550 5.7.708 Service unavailable. Access denied, traffic not accepted from this IP. For more information please go to http://go.microsoft.com/fwlink/?LinkId=526653 AS(8561) [DM5PR16MB1612.namprd16.prod.outlook.com]'
Original message headers:

Received: from DM5PR16MB1673.namprd16.prod.outlook.com
([fe80::c95a:21ec:d7ec:3bc3]) by DM5PR16MB1673.namprd16.prod.outlook.com
([fe80::c95a:21ec:d7ec:3bc3%9]) with mapi id 15.20.4436.024; Thu, 26 Aug 2021
19:39:19 +0000
MIME-Version: 1.0
Content-Type: text/plain
Date: Thu, 26 Aug 2021 19:39:19 +0000
Message-ID: <dkdlidzk15sf2iuijbwmxk0c0-0@mailer.nylas.com>
Subject: test

Answer 1

Hello @Ashley Dalton

Please have look on below Microsoft article mentioning the same email bounce error code 5.7.708

https://learn.microsoft.com/en-us/exchange/mail-flow-best-practices/non-delivery-reports-in-exchange-online/fix-error-code-5-7-700-through-5-7-750

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