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Exchange 2010 email not routing internal or external

Posted on 2010-09-08
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Last Modified: 2012-05-10
Installed exchange 2010 in coexistance with 2003. Everything was working fine during initial install and testing. I had several users migrated to 2010 mailboxes and email flow was OK.

Last night i migrated all my mailboxes to 2010 and now email flow is not working. I am getting no delivery errors emails just disappear. they do not to users mailbox internally. The only thing i can see that changed is for some reason the routing group connector between the 2003 and 2010 servers has gone. This must of happened automaticly after last mailbox moved.

i have send and receive connectors configured but emails are still not routing

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Question by:PACSAdmin
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12 Comments
 
LVL 6

Author Comment

by:PACSAdmin
ID: 33632370
i am getting this error

The Microsoft Exchange Mail Submission service is currently unable to contact any Hub Transport servers in the local Active Directory site. The servers may be too busy to accept new connections at this time.
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Expert Comment

by:endital1097
ID: 33632454
look at the application log on the hub transport server for backpressure warning/errors
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Accepted Solution

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endital1097 earned 500 total points
ID: 33632457
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LVL 6

Author Comment

by:PACSAdmin
ID: 33632461
i have backpressure issue as disk is at 96%

what can i move off the system disk to releive this

eschange DB is already on another drive
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LVL 32

Expert Comment

by:endital1097
ID: 33632465
are the exchange logs on this drive? moving the mailboxes would have generated a lot of log files.
did you run a backup of the exchange databases after the move?
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Author Comment

by:PACSAdmin
ID: 33632472
This is a combined HUB CAS MBX

40 GB System
200GB Data
200 GB Backup
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LVL 32

Expert Comment

by:endital1097
ID: 33632473
you can run the following from the exch management shell to find log location
get-mailboxdatabase | fl log*
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LVL 32

Expert Comment

by:endital1097
ID: 33632476
which drive is full, the system?
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LVL 32

Expert Comment

by:endital1097
ID: 33632623
how are things going? did you find something to move to free disk space?
some versions of windows have the hibernation feature enabled by default
run the following to disable (typically frees up a couple gbs)
powercfg.exe /hibernate off
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LVL 6

Author Comment

by:PACSAdmin
ID: 33632638
all fixed now. Lets call it a senior moment. I thought i had moved the database path to another drive but i had only moved the log files. After moving the database this freed up 15Gb on the system drive. I restarted the transport service and email started flowing.

thanks for pointing me in the right direction
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Author Closing Comment

by:PACSAdmin
ID: 33632642
Issue was as specified in response
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LVL 32

Expert Comment

by:endital1097
ID: 33632643
glad to hear it, have a good night
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