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SMTPdiag test results

Posted on 2008-11-21
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Last Modified: 2013-11-30
I have a newly setup Exchange server, first one I have ever deployed in a production environment.  Mail seems to be flowing in & out without any problems.  Users haven't reported not receiving mail.  I did notice in the "Exchange System Manager-->Administrative Groups-->Servers-->Servername-->Queues" that I often get messages in a Default SMTP virtual servers queues stuck in retry.  When I look into the messages they are almost always from the postmaster @ myorganization.  

This lead me down the path of running smtpdiag tool.  I would like to know how to resolve the last test to be successful.  See results below.
Searching for Exchange external DNS settings.
Computer name is Server01.
VSI 1 has the following external DNS servers:
There are no external DNS servers configured.
 
Checking SOA for myorganization.org.
Checking external DNS servers.
Checking internal DNS servers.
SOA serial number match: Passed.
 
Checking local domain records.
Checking MX records using TCP: myorganization.org.
Checking MX records using UDP: myorganization.org.
Both TCP and UDP queries succeeded. Local DNS test passed.
 
Checking remote domain records.
Checking MX records using TCP: myorganization.org.
Checking MX records using UDP: myorganization.org.
Both TCP and UDP queries succeeded. Remote DNS test passed.
 
 
Checking MX servers listed for name@remoteorganization.net.
Connecting to mail.remoteorganization.net [remote IP address] on port 25.
Connecting to the server failed. Error: 10061
Failed to submit mail to mail.remoteorganization.net.

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Question by:Zorniac
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after reviewing my McAfee ePO server logs I noticed that there is an access protection rule that was blocking the process from completing successfully.  "Prevent Mass mailing worms from sending mail"  disabled this rule and smtpdiag.exe completed all tests successfully.  Just need to edit rule properly to allow for smtpdiag to be excluded
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