protected function doCallback($isSent, $to, $cc, $bcc, $subject, $body) { if (is_callable($this->action_function)) { return call_user_func_array($this->action_function, array($isSent, $to, $cc, $bcc, $subject, $body)); } return parent::doCallback($isSent, $to, $cc, $bcc, $subject, $body); }