Gmail Notify

Email.gs

function EmailNotify() {
  var label = GmailApp.getUserLabelByName('Notify');
  var threads = label.getThreads();
  for (var x in threads) {
    var messages = threads[x].getMessages();
    for (var i = 0; i < messages.length; i++) {
      var message = messages[i];
      if (message.isUnread()){
        var emailAddressForNotify = 'qwerty@plusnet.pl';
        //Logger.log(message.getFrom());
        GmailApp.sendEmail(
          emailAddressForNotify,
          message.getFrom() + ' ' + message.getSubject(),
          'Notification of new message.'
          );
      }
    }
  }
  label.removeFromThreads(threads);
}