POWERSHELL: Get infomation about email queue message counts

Quik check of all active Hub Transport queues:

$HubTransports=Get-ExchangeServer | Where {$_.ServerRole -like "*Hub*"}
$HubTransports| foreach {
 Get-Queue|ft }

Quik check of all active Hub Transport queues with a message count of 5 or more:

$HubTransports=Get-ExchangeServer | Where {$_.ServerRole -like "*Hub*"}
$HubTransports | foreach {
 Get-Queue -Filter {MessageCount -ge 5}}