Go to 'My Festival' > 'Manage' > 'Submitter Notifications'. Here you can create custom notification emails that will be automatically sent to submitters notifying them of their Selection or Non-Selection to your event.
You can also set your 'Notification Preference' on this page as well. This allows you to choose whether you wish to notify submitters of their final Judging Status either immediately when their entry has been marked as Selected or Not Selected, or only on your festival’s posted Notification Date.