1. Toolbar: A row of buttons for common tasks.
2. Mail List: A list of new messages in your mailbox.
3. Headers: Displays the headers of the currently selected message.
4. Action Bar: A row of with common tasks to perform on the currently viewed message
3. Message: Displays the currently selected message.
6. Folder List: A list of folders for the mail system.
Checking for new mail, and refreshing the mail list
Compose and send a new message