Below the folder bar, the window is divided into two frames. The frame to the top is the current folder frame and at the bottom of the window holds the current message . Each of these frames is resizable. The horizontal divider between the message frame and the frames above can, similarly, be moved up and down. You can change the order in which messages are displayed by clicking on Sender , Subject or Date to sort by one of these characteristics.
Date is the default.
Note that you may have to widen the current folder frame to see the date. Compose Message - Create a new mail message. Reply to Author - Allows you to reply to the sender. Forward Message - Allows you to forward the selected message. Send and Receive - Collects new messages from the mail server and places them in the Inbox folder.