public static function optOut($md5email)
{
if (!empty($md5email)) {
// Check if the email owner is one of the registered customers
$customer = Customers::getCustomerbyEmailMd5($md5email);
if (!empty($customer[0]['customer_id'])) {
Customers::newsletter_subscription($customer[0]['customer_id'], false);
} else {
// Remove the email address from the email subscribers
Doctrine_Query::create()->delete('NewslettersSubscribers')->where('MD5(email)', $md5email)->delete();
}
return true;
} else {
return false;
}
}
