Why this user always failed to send mail to that user?
Posted on 2011-03-08
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
Subject: Undeliverable: Test Mail
localhost.localdomain rejected your message to the following e-mail addresses:
localhost.localdomain gave this error:
Verification failed for <email@example.com> The mail server could not deliver mail to firstname.lastname@example.org. 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
localhost.localdomain #550-Verification failed for <email@example.com> 550-The mail server could not deliver mail to firstname.lastname@example.org. 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
Subject: Test Mail
Thread-Topic: Test Mail
Date: Tue, 8 Mar 2011 01:00:09 +0000
What's wrong with the sender/recipient's mail? How to resolve it?