The Inbox is the collection of all your read and unread messages. Use the check box (to the left) to select multiple items, which may then be managed from the right-hand detail pane or using the Mass Actions ellipsis. Status color: The band of color on the left of the notification, along with the color of the item in the Inbox provides insight into the state of the notification. Yellow: Unread notification - not selected. Blue: Currently selected notification. Moving off this notification marks it as read. White: Read notification.