/**
  * Public constructor
  *
  * In addition to the parameters of Zend_Mail_Message::__construct() this constructor supports:
  * - uid  use UID FETCH if ftru
  *
  * @param  array $params  list of parameters
  * @throws Zend_Mail_Exception
  */
 public function __construct(array $params)
 {
     if (isset($params['uid'])) {
         $this->_useUid = (bool) $params['uid'];
     }
     parent::__construct($params);
 }