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GSI GuyFlag for Canada

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MSExchange 2013 errors

We are receiving numerous repetitive errors in our Exchange 2013 mailbox server event logs.

Each time a New-MailboxExportRequest is made, we get error 5000 from "MSExchange Management Application". "Failed to save admin audit log for this cmdlet invocation".

It's followed immediately afterward by Error 10001 from "MSExchange Mid-Tier Storage".  "Failed to create notification object for async operation 'ForestWideOrg\<Random GUID here>'. Error = Microsoft.Exchange.Data.DataSourceOperationException: The requesting account does not have permission to serialize tokens. ---> "

I've tried looking these up, but every where I look it involves a mixed Exchange 2010/2013 environment.  Ours is 2013 only (2013 was the first and so far only version).  We are running the latest CU.

Any help would be appreciated.

Thanks!
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Bembi
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The server is running 2012R2.  I'll check on that permissions issue, though there should only be two groups that that server's computer account is a member of - Domain Computers and another one that I created specifically for servers.
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The user in question is indeed a member of those groups (Schema admin, Domain, admin, Organization Management

However, when I create a new user (With Mailbox Import Export permissions, and assigned to the Backup Operators group on that server) and attempt to run the export script again as that user, I get the following error:

New-MailboxExportRequest : Couldn't find system mailbox
'4a07476f-9f3e-47d1-89f0-a493b87d3240' in Active Directory.
At C:\backupsc\MailboxExport\backup-exchange.ps1:41 char:1
+ New-MailboxExportRequest -BatchName $BatchName -Mailbox $Mailbox.Alias
-FilePath ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
~~~
    + CategoryInfo          : NotSpecified: (:) [New-MailboxExportRequest], Sy
   stemMailboxNotFoundPermanentException

Any thoughts?
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I found the system mailboxes, but none with the GUID specified.  Looks like I'll have to recreate them.

I'll post back on Monday to inform you of any progress.
Hello,

you can check for each mailbox, which System Mailbox is connected to the database...
Get-Mailbox –Database “[Mailbox Name]” –arbitration
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ASKER

Thank you everyone for your assistance.  This issue has now been resolved.  Thanks!
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ASKER

Issue resolved.  Thanks!