public static function changeEmailBounce()
 {
     $responses = self::emailDeliverFailBySubject('Change your Ignitor labs email');
     foreach ($responses as $key => $value) {
         $tmp = Tmp_Email::where('tmp_email', '=', $value)->first();
         if ($tmp) {
             self::changeEmailFail($tmp->user_id);
             $tmp->delete();
         }
     }
 }
 /**
  * verify user email
  *
  * @param  string  $idUser, $email
  * @return Response
  */
 public static function verifyEmail()
 {
     $app = \Slim\Slim::getInstance();
     $data = $app->request->post();
     $app = \Slim\Slim::getInstance();
     $data = $app->request->get();
     if (!isset($data['source'])) {
         $app->halt('400', json_encode("Link is invalid."));
     }
     $id = openssl_decrypt($data['source'], 'aes128', self::$pass, 0, self::$iv);
     $tmp = Tmp_Email::find($id);
     if (!$tmp) {
         $app->halt('404', json_encode("Link is invalid."));
     }
     if (self::isExist($tmp->tmp_email)) {
         $app->halt('409', json_encode("Link is invalid. Email has already been used."));
     }
     $user = User::find($tmp->user_id);
     $user->email = $tmp->tmp_email;
     $saved = $user->save();
     if ($saved) {
         Tmp_Email::where('user_id', '=', $tmp->user_id)->delete();
         EmailController::changeEmailSuccess($tmp->user_id);
         return json_encode("success. Your email have already changed.");
     }
     $app->halt('500', json_encode("Save to DB error."));
 }