Disconnected Mailboxes in Exchange 2003

I was looking into finding all disconnected/orphaned mailboxes in an Exchange2003 org. Normally I would use either an old VBScript I have or the Exchange 2003 ESM. I thought it would be good to experiment with PowerShell and try to simplify the VBScript that I have.

Below is a PowerShell script that utilizes ADSI to gather all Exchange 2003 servers in your configuration container. Then for each server it utilizes WMI to connect to the Root/MicrosoftExchangeV2 ‘NameSpace’ and the Exchange_Mailbox provider. From there we filter on only mailboxes that the “DateDiscoveredAbscentInDS” property is NOT NULL. That data is then passed through the pipeline to a Select-Object where a custom Hash table is built to display the Server Name of the filtered mailboxes. The filtered mailboxes and the selected data is then passed through the pipeline and exported to a .csv file on the root of C:\ named with the format C:\DisconnectedMailboxes_%Servername%.csv.

Code:

[String]$StrFilter = "(objectCategory=msExchExchangeServer)"
$objRootDSE = [ADSI]"LDAP://RootDSE"
[String]$strContainer = $objRootDSE.configurationNamingContext
$objSearcher = New-Object System.DirectoryServices.DirectorySearcher
$objSearcher.SearchRoot = New-object System.DirectoryServices.DirectoryEntry("LDAP://$strContainer")
$objSearcher.PageSize = 1000
$objSearcher.Filter = $strFilter
$objSearcher.SearchScope = "Subtree"
$colResults = $objSearcher.FindAll()
ForEach ($objResult in $colResults) {
[String]$ServerDN = $objResult.Properties.distinguishedname
$objServer = [ADSI]"LDAP://$ServerDN"
[String]$Server = $objServer.cn
Get-WmiObject -NameSpace Root\MicrosoftExchangeV2 -Class Exchange_Mailbox -Computer $Server | `
Where { $_.DateDiscoveredAbsentInDS -ne $null } | `
Select-Object @{N="Server";E={$_.__Server}},`
StorageGroupName,StoreName,MailboxDisplayName,Size,DateDiscoveredAbsentInDS | `
Export-Csv "C:\DisconnectedMailboxes_$Server.csv" -NoTypeInformation
}#End ForEach

Hope this helps.

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