Edge Transport service

I have a problem with the Edge transport service going up and up until 99% CPU used - machine like a snail.
If i end the process it auto restarts as it should and same again - this loop takes between 10 - 20 minutes.

What can i check.  I have been reading about back pressure, but no errors in logs stating this.

SYSTEM:
Win server 2003 /65
Exchange 2007/65 SP1 - roll up 7 (was roll up 8 - now removed)
Policy Patrol 5 (email filtering)
Running Edge and hub transport services.
SQL server 2005/64
twin Zeon quad core procs  + 16mg ram + raid 5 HD's
DC + RTSM roles.

I know the setup may not be ideal, but works with no issues other than this one.
LVL 5
dexterhomeAsked:
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dexterhomeAuthor Commented:
I think i have traced the issue back to a message stuck in the mail queue.
It has not size.
I can not remove the message as gives me an error. (see bottom).

If i remove using this command:
remove-message -filter {fromaddress -like "sending user email"}
It asks me to confirm the message removal, and then returns me to the command line, but message is still locked in the queue.


--------------------------------------------------------
Microsoft Exchange Error
--------------------------------------------------------
Action 'Remove (with NDR)' could not be performed on object ''.


Failed
Error:
The requested operation can't be performed for the object with identity SVR2\Submission\86696.




--------------------------------------------------------
OK
--------------------------------------------------------
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dexterhomeAuthor Commented:
I finally got the message in question removed, but issue not resolved.

What / where can i check to solve the problem on the edge transport service 9edgetransport.exe)
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dexterhomeAuthor Commented:
I now have an error message in the application event viewer regarding policy patrol edge service - so this could be the problem. (not responding in a timely manner)

If i disable the policy patrol service and restart the edge service the service just starts running away again.
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debuggerauCommented:
any transport rules recently added?

And you have traced it back to that particular service causing the overload, not policy patrol?
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dexterhomeAuthor Commented:
finally found the issue.

I removed the policy patrol AV module and the transport service worked all ok.

Re-installed the av module and OK.

Issue was the av module and now resolved.
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