Exchange Server Events-Appl- error 9175

A large number of errors slow the server and also the mail send/receive process.

A similar question was on the KB but I have difficulty applying those suggested solutions.
Exchange-Server-Appl-Error-9175.txt
Errors-every-minute.jpg
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CityOfPalmsAsked:
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conradjonesCommented:
Check this KB

http://support.microsoft.com/kb/262456

Is your information Store service runnning?

In exchange system manager is the information store mounted?
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CityOfPalmsAuthor Commented:
Yes my information Store service runnning.
Yes In exchange system manager the information store is mounted.

Additional information:
In Feb, I created a new Information store and dropped the old one since the Old one had grown to over 150 GB in size. The current one is a little over 20 GB.

One of the Mailboxes has  a red circle in front of it; Did I delete any file associated with this by accident? Also, how do I find which one is my System mailbox?

One mail user is getting an error every time she clicks on the button Send/receive in her Outlook. Error attached.

Another user is getting 'delay' notices from system admin.

Somehow, I think all these symptoms relate to a common problem.
Send-Receive-Error.jpg
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conradjonesCommented:
how did creating a new information store solve the space problem?

do you backup this information store?
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CityOfPalmsAuthor Commented:
The size of the MDBDATA file was disproportionately high (150+ GB) compared to the total of the individual mailbox sizes. After creating the new mailbox store, that problem went away.

I do backup the Information Store using Symantec Backup-Exec software on to Tapes.
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conradjonesCommented:
maybe your backup software was not clearing the transaction logs correctly.

or running eseutil to compact the database may have solved it.

did you move the mailboxes using system manager?
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CityOfPalmsAuthor Commented:
I created a new store, and one by one I right-clicked the mouse on each Mailbox and using the Exchange task Wizard moved the mail boxes to the new store.

There is one mailbox with a red mark to the left of it. Picture attached. Do I have to delete this?
Also attached is a list of MS Exchange System Objects under Active Directory.
I don't have a user names 'SystemMailbox' under the list of users in my Active Directory; Do I have to create one?
Thanks
List-of-Mailboxes.jpg
MS-Ex-System-Objects-from-Active.jpg
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CityOfPalmsAuthor Commented:
I tried to use eseutil to compact the database. But it took a long time and aborted. One expert in this Exchange said creating a new store and dropping the old one is much simpler and efficient.
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conradjonesCommented:
i suspect that the disconnected system mailbox is because the user account is missing.

the preferred method for re-creating it would be to create a new mailbox store and move the mailboxes to it.

http://support.microsoft.com/default.aspx?scid=KB;EN-US;Q316622 
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CityOfPalmsAuthor Commented:
I have implemented all the suggestions.
I will redo the creation of another Mail Store and move all the mailboxes
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