Message Notification properties page
The following options allow you to specify the properties of a mailbox or a group of mailboxes you have selected:
Notification
None - no pop-up message will appear for selected mailboxes;
Specific - enables pop-up message notification for selected mailboxes;
Test
This button allows you to test pop-up message appearance; it becomes disabled if you change Notification setting, to enable the button you need to select Specific Notification option and press Apply button.