/**
* @param CM_Mail $mail
* @return string
* @throws CM_Exception_Invalid
*/
public function getUrlEmailTracking(CM_Mail $mail)
{
if (!$mail->getRecipient()) {
throw new CM_Exception_Invalid('Needs user');
}
$params = array('user' => $mail->getRecipient()->getId(), 'mailType' => $mail->getType());
return CM_Util::link($this->getSite()->getUrl() . '/emailtracking/' . $this->getSite()->getId(), $params);
}