Exchange 2003 CPU 100% Utilization

It seems every two weeks around the same time my 2003 exchange server "crashes". I disables anti-virus software, and i don't see anything happening at the time the systems goes down. I was able to log on and look at the task manager. inetinfo.exe and store.exe were combining to use 100% of the CPU. Occasionally svchost would pop in and use quite a bit of the CPU as well. My first thought was it has to be something that is scheduled, because it happens around the same time. Early in the moring on Sunday. I just don't see anything.
estantonAsked:
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MegaNuk3Connect With a Mentor Commented:
If ExBPA doesn't highlight anything then I would seriously recommend putting:
 http://support.microsoft.com/kb/977720 on there, which would give you a much later version of store.exe
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Shreedhar EtteCommented:
Hi,

Are using application to add disclaimers to emails? If yes, which application.

Also refer this:
http://www.experts-exchange.com/Networking/Email_Groupware/Q_20665254.html

Hope this helps,
Shree
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estantonAuthor Commented:
Yes, CodeTwo exchange rules.
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Shreedhar EtteCommented:
Just disable it and restart the SMTP service and then monitor the CPU usage.
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amadminCommented:
I agree with shreedhar.
CodeTwo has been known to kill your processor by overwhelming the inetinfo.exe process.
Check in process monitor, then if this is the case then temporarily disable CodeTwo and update the software.
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estantonAuthor Commented:
Why do you think it would every two weeks at the same time. That is what is very weird to me.
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Shreedhar EtteCommented:
Hi,

Does you have schduled any Anti-Virus Scanning of the server every wo weeks?

Run Exchange 2003 Best Practise Analyzer tool and fix the reported errors.

Hope this helps,
Shree
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MegaNuk3Commented:
Also what version of store.exe do you have?

If you have any ActiveSync users you might want to look at installing this hotfix:
 http://support.microsoft.com/kb/977720
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estantonAuthor Commented:
I don't see anything scheduled to run every two weeks. I am going to take a closer look at that. No active sync, but I will run the best proctices analyzer.
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MegaNuk3Commented:
any updateon exbpa?
also what version of store.exe are you running?
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estantonAuthor Commented:
Store version is 6.5.7654.12. I should be able to run the best practices ananlyzer today.
Thanks for your help.
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estantonAuthor Commented:
ExBPA found that the incoming and outgoing message size was too big and that it was an open relay. THis server is not internet facing. We have an ironport between the server and the interent. I used http://www.checkor.com/ to check for an open relay, and the tests came back ok. I am going to try and update store.exe tonight.
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MegaNuk3Commented:
any update.

Also make your incoming/outgoing message size something reasonable so you don't have users trying to e-mail their PST files to their external GMAIL accounts. Exteremely large messages can kill Exchange...
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estantonAuthor Commented:
It could be a couple weeks before I know if updating the store did any good. I will award points now and open a new thread if need be.
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MegaNuk3Commented:
OK, thanks for the points... you could of left the question open. I don't mind waiting to see if something has worked or not.
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