Message count at 900 but mailboxes are empty. Cannot clear message count.
iPhone 6 Plus, IOs 8.1.3. From the main menu, the Mail icon displays a message count of 900, yet there are no messages in any mailbox. Also, at the 'Mailboxes' page, there is a mailbox indicating a count of 900, and an 'Unread' folder with a message count of 900, but when you open the mailbox or the 'Unread' folder, there are no messages. New messages can be received and read; only the 900 messages cannot be deleted or found.
iPhone 6 Plus, iOS 8.1.3