Sort order                                     Manual page 153
 You can change the order of the messages using the sort by
 froM and sort by daTe options in the Mail menu.

 Regardless of which sort order you choose, new messages will
 always be at the top of the list (with a * to the left).

    Sort by From  This sorts by the name of the person who
                  sent you the message.  The sort is by first
                  name, not by last name.

    Sort by Date  This sorts messages by the date that the
                  message was posted on MCI (not when you
                  received it).