protected function sendEmailNotification($subject, $message)
{
$superUsers = UsersManagerApi::getInstance()->getUsersHavingSuperUserAccess();
foreach ($superUsers as $superUser) {
$mail = new Mail();
$mail->setDefaultFromPiwik();
$mail->addTo($superUser['email']);
$mail->setSubject($subject);
$mail->setBodyText($message);
$mail->send();
}
}