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Exchange 2010 - 400 4.4.7 Message delayed

Migrated exchange 2003 to 2010, 2010 can receive messages but cannot send. When I check the Queues I recieve the error 400 4.4.7 Message delayed. DNS does not seem to be the issue. I can do telnet tests on port 25 by name to SMTP hosts on the internet.
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securemedical
Asked:
securemedical
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1 Solution
 
davorinCommented:
Have you configured send connector on new server?
http://www.petri.co.il/configuring-exchange-2007-send-external-email.htm
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Auric1983Commented:
Are you trying to send to a user on the Ex2k3 server or external?

Do you have a BES server?

There are some security changes BES required for it to work on Exchange 2003, that can break Ex 2010 to Ex 2003 delivery.
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davorinCommented:
Can you tell us how did you solved the problem?
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securemedicalAuthor Commented:
Send connector was the issue, I didnt mean to cancel the question. Please aware davorin the points
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