Validation::email PHP Method

    public static function email($value)
    {
        return filter_var($value, FILTER_VALIDATE_EMAIL) !== false;
    }

 public function individualMail($section, $arr = array())
 {
     $this->autoRender = false;
     $contents = $this->Mail->findBySection($section);
     $content = $contents['Mail']['content'];
     foreach ($arr as $key => $val) {
         $content = str_replace("~~{$key}~~", $val, $content);
     }
     if (!empty($arr['TO_EMAIL']) && Validation::email($arr['TO_EMAIL'], true)) {
         $email = new CakeEmail();
         $email->template('default');
         $email->config('default');
         $email->emailFormat('html')->to($arr['TO_EMAIL'])->subject($contents['Mail']['subject']);
         try {
             if ($email->send($content)) {
                 return;
             } else {
                 return;
             }
         } catch (Exception $e) {
             return;
         }
     }
     return;
 }