Mit Filter:
$a = Get-MailboxDatabase foreach ($b in $a) { if ($b.Name -like "DB-Via-Premium*") { $b.Name + ": " + (Get-MailboxStatistics -Database $b.Name).Count } }
Ohne Filter:
$a = Get-MailboxDatabase foreach ($b in $a) { $b.Name + ": " + (Get-MailboxStatistics -Database $b.Name).Count }