Totals in Mailboxes
Users can more easily see the total storage being used in all their folders in a Mailbox. Left-click on a Mailbox in the E-Mail panel to see the summary for that Mailbox.
The Mailbox Summary screen shows the total size of all e-mails, the number of e-mails, the number of unread e-mails, and the number of e-mails with open follow-ups (flags).