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Why this user always failed to send mail to that user?

This is using MS Exchange 2010 server. Recently, a user told me that his mail to a certain recipient always got the bounced mail as follows:
_____________________________________________
From: Microsoft Outlook
Sent: Tuesday, 8 March, 2011 9:00 AM
To:sender@abc.com
Subject: Undeliverable: Test Mail
 
 
localhost.localdomain rejected your message to the following e-mail addresses:
 
recipientB@xyz.com
 
localhost.localdomain gave this error:
Verification failed for <sender@abc.com> The mail server could not deliver mail to sender@abc.com. The account or domain may not exist, they may be blacklisted, or missing the proper dns entries. Sender verify failed
 
A problem occurred during the delivery of this message to this e-mail address. Try sending this message again. If the problem continues, please contact your helpdesk.
 
 Diagnostic information for administrators:
 
Generating server: Exchserver.exchost.local
 
recipient@xyz.com
localhost.localdomain #550-Verification failed for <sender@abc.com> 550-The mail server could not deliver mail to sender@abc.com. The account or domain may not exist, they may be blacklisted, or missing the proper dns entries. 550 Sender verify failed ##
 
Original message headers:
 
Received: from EXCH.exchost.local ([fe80::5015:ecbe:81d4:cf50]) by
 EXCH.exchost.local ([fe80::5015:ecbe:81d4:cf50%11]) with mapi id
 14.01.0218.012; Tue, 8 Mar 2011 09:00:10 +0800
From: sender@abc.com
To: "recipient@xyz.com"
Subject: Test Mail
Thread-Topic: Test Mail
Thread-Index: AcvdLTzKH9kK4f2aShmtXMB6Mk6ZOw==
Date: Tue, 8 Mar 2011 01:00:09 +0000
Message-ID: <DF6FB63728F4494BB9CD9FD2FDB2874C02FA34A0@EXHOST-EXC.exchost.local>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach: yes
X-MS-TNEF-Correlator:
x-originating-ip: [119.74.141.240]
Content-Type: multipart/related;
        boundary="_004_DF6FB63728F4494BB9CD9FD2FDB2874C02FA34A0EXHOSTEXCexchos_";
        type="multipart/alternative"
MIME-Version: 1.0
 
What's wrong with the sender/recipient's mail? How to resolve it?

0
Balack
Asked:
Balack
  • 2
1 Solution
 
Alan HardistyCommented:
Please have a read of my article and check that you are configured correctly:

http://www.experts-exchange.com/Software/Server_Software/Email_Servers/A_2427-Problems-sending-mail-to-one-or-more-external-domains.html

With Exchange 2010, please check the FQDN on your SEND Connector and make sure that the name you have on there resolves to your sending IP address and if not, either correct the name to make it resolve, or configure DNS to make it resolve (externally).

Make sure that your Reverse DNS record is also able to resolve to your sending IP address.
0
 
BalackAuthor Commented:
Excellence, change the FQDN
0
 
Alan HardistyCommented:
Great news - glad that I was able to help you solve the problem.

Could you please explain the Grade B you gave the solution as this would suggest that you had to do further research to help solve the problem, which on the surface, would appear that you didn't have to.

Thanks

Alan
0

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