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Cannot send emails internally - Exchange 2010

Posted on 2011-03-23
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Last Modified: 2012-06-21
Hello Guys,
Suddenly we cannot send emails to internal users while we can receive from outside. We tried to restart all services in exchange 2010 but nothing work.

please help
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Question by:smartbusiness
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LVL 19

Expert Comment

by:Raheman M. Abdul
ID: 35197031
Try to find the issue with the Mail/Message Flow Troubleshooter
under Exchange Management Console -> Tools
Run health check analyser as well
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LVL 9

Expert Comment

by:dexIT
ID: 35202370
did you change your internal fqdn for exchange? is DNS testing clean on your network? (dcdiag /test:dns)
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Accepted Solution

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smartbusiness earned 0 total points
ID: 35227197
I found the issues,
one of the domain controller had a worng time that effected the Exchange server.
it is very wierd that only the internal emails does not arrive if this problem happens, external e-mail artive normaly.
i think it is becuase if the time is not right it does not authinticate correctly, and the internal connector requier authintication.

Any how thanks for the help.
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Author Closing Comment

by:smartbusiness
ID: 35292487
I solved my own problem
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