/**
* Transport the message
*
* @param string $transport Use a diffrent transporter
* @return void
*/
protected function transport($transporter = null)
{
if (!is_null($transporter)) {
$transporter = Transporter::create($transporter);
} else {
$transporter = $this->transporter;
}
// pass the current mail to the transporter
$transporter->send($this);
}
