Open the Email app, then tap the Accounts list icon \ (at the top of the screen).
Tap an account to display that account’s Inbox.
Tap the Menu icon (at the upper-right corner of the screen), then tap Folders. The account’s folder list is displayed. Tap one to change folders.
When new email arrives, a notification appears in the Status Bar. Drag the Notifications panel downward and tap the email notification.