Receiving NDR

HI Team,

I am receiving the below NDR, while trying to send emails. Please analyze and help.

Delivery has failed to these recipients or groups:
smartcentersupport2@microland.com
Your message can't be delivered because delivery to this address is restricted.
For more information about this issue see DSN code 5.7.1 in Exchange Online.





Diagnostic information for administrators:
Generating server: BLRECOEXCHMB102.MLCORP.NET
smartcentersupport2@microland.com
Remote Server returned '550 5.7.1 RESOLVER.RST.AuthRequired; authentication required'
Original message headers:
Received: from BLRECOEXCHFE101.MLCORP.NET (172.21.6.128) by
 BLRECOEXCHMB102.MLCORP.NET (172.21.10.42) with Microsoft SMTP Server (TLS) id
 15.0.1156.6; Fri, 14 Apr 2017 20:01:17 +0530
Received: from SMC-KLI-PRODDB (172.21.2.198) by SMTP.MICROLAND.COM
 (172.21.6.128) with Microsoft SMTP Server id 15.0.1156.6 via Frontend
 Transport; Fri, 14 Apr 2017 20:01:17 +0530
Sensitivity: Normal
Importance: Normal
MIME-Version: 1.0
From: KLI PRODDB <rmcdatabaseteam@microland.com>
To: <smartcentersupport2@microland.com>
Date: Fri, 14 Apr 2017 20:00:18 +0530
Subject: [The job succeeded.] SQL Server Job System: 'Database_Backups.Log_Backups'
 completed on \\SMC-KLI-PRODDB.
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Message-ID: <c02847f60d30481797f2b191d8f2ed46@BLRECOEXCHFE101.MLCORP.NET>
Return-Path: rmcdatabaseteam@microland.com
soujanyar rajanAsked:
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Tom CieslikIT EngineerCommented:
Remote Server returned '550 5.7.1 RESOLVER.RST.AuthRequired; authentication required'

Probably your using some software like Backup software or backup job to send email but recipient server require authentication.
You must authenticate email using domain\login and password to send email out.
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Bhushan GaikwadNOC support EngineerCommented:
hello sir

Check delivery restrictions on the group in Exchange and make sure it is configured to receive emails from the address you are sending from.
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soujanyar rajanAuthor Commented:
okay .. thank u...
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Tom CieslikIT EngineerCommented:
If you do have Exchange and this email is not leaving company and it's supposed to be deliver to same server what was sent from then create relay connector in your receive connectors and allow anonymous  users to send emails but restrict to internal IP only.

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Vijaya Babu SekarAssociate Ops ManagerCommented:
Since its restricted DL or mailbox, so you are getting "Your message can't be delivered because delivery to this address is restricted."

First you have to remove the restriction from mailbox properties

If you facing domain level, you have to allow to anonymous
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Tom CieslikIT EngineerCommented:
Best solution provided, no more other questions from author.
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