foreach($server in get-transportservice){$server.Name; Get-MessageTrackingLog -Start "04/06/2016 00:00" -End "04/08/2016 00:00" -Server $server.Name -Sender max.mustermann@contoso.com -Recipients john.doe@someothercorp.com -EventID "Deliver" | ft}

So funktioniert es in Exchange 2013 in jedem Fall.