/**
  * 불확실한 오류를 ez_massmail_sendresult에 넣어준다.
  *
  * @param massmailID
  * @param testmassmailID
  * @return
  * @throws DataAccessException
  */
 public int insertResultNotKnow(int massmailID, int scheduleID) {
   int result = 0;
   TransactionStatus status =
       getTransactionManager()
           .getTransaction(getDefinition(TransactionDefinition.ISOLATION_READ_COMMITTED, false));
   try {
     result = massmailStatisticDAO.insertResultNotKnow(massmailID, scheduleID);
     getTransactionManager().commit(status);
   } catch (Exception e) {
     getTransactionManager().rollback(status);
     logger.error(e);
   }
   return result;
 }