Exchange: Deaktivierte User automatisch aus Verteiler entfernen, mit Ausnahme bestimmter OUs

Add-PSSnapin Microsoft.Exchange.Management.PowerShell.SnapIn;
$groups = Get-DistributionGroup -ResultSize Unlimited

foreach ($group in $groups){
    Get-DistributionGroupMember $group.Identity | `
    Where-Object {$_.RecipientType -like '*User*' -and $_.ResourceType -eq $null} | `  
    Get-User | Where-Object {$_.UserAccountControl -match 'AccountDisabled'} | `  
    Remove-DistributionGroupMember $group -Confirm:$false
    }