Get-Mailbox BoardRoom | Set-CalendarProcessing -AllBookInPolicy:$false -AllRequestInPolicy:$false -BookInPolicy “[email protected]”,”[email protected]”

Get-Calendarprocessing BoardRoom |fl automateprocessing, *policy

Get-Calendarprocessing BoardRoom |Select-Object -ExpandProperty:bookinpolicy

revert back:

Get-Mailbox BoardRoom | Set-CalendarProcessing -AllBookInPolicy:$true -AllRequestInPolicy:$true

Output a List of In-Policy Users for a Resource Mailbox Using PowerShell