public function __construct(Qdmail $qdmail, Exception $previous = NULL)
 {
     $this->stack = $qdmail->errorStatment();
     $msg = "Qdmail error:" . print_r($this->stack, true);
     if ($previous) {
         parent::__construct(s($msg), $previous);
     } else {
         parent::__construct(s($msg));
     }
     foreach ($this->stack as $item) {
         log_error("mail", $item);
     }
 }