troubleshooting Question

We are using Microsoft® Outlook® 2016 MSO (16.0.13929.20206) 32-bit as our email server. Our outgoing emails are getting rejected by yahoo and others.

Avatar of neldd
neldd asked on
4 Comments2 Solutions43 ViewsLast Modified:
Delivery has failed to these recipients or groups: (
 Your message wasn't delivered because the recipient's e-mail provider rejected it.
The following organization rejected your message:

Diagnostic information for administrators:
Generating server: SD-EXCHANGE-01.shuckdrillingco.local #550 5.7.64 TenantAttribution; Relay Access Denied [] ##
Original message headers:
Received: from SD-EXCHANGE-01.shuckdrillingco.local ([::1]) by
 SD-EXCHANGE-01.shuckdrillingco.local ([::1]) with mapi; Thu, 6 May 2021
 11:41:26 -0500
From: Dale Shuck <>
To: Dale Shuck <>
CC: "" <>
Subject: test 
Thread-Topic: test 
Thread-Index: AddClnj4YXAcR7BvSrKs1x/Gff85yA==
Date: Thu, 6 May 2021 16:41:24 +0000
Message-ID: <1DE78E378FA25744AA7259B30CE674270257523E85@SD-EXCHANGE-01.shuckdrillingco.local>
Accept-Language: en-US
Content-Language: en-US
Content-Type: multipart/alternative;
MIME-Version: 1.0

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