You can sort the Message List into ascending or descending order based on the following Column Heads:
Time Received -- The date and time when the message was received in your mailbox.
Type
-- A 3-character code for the type of message received. The small icon
located to the immediate left of this column is a hover
button. When you place the point of your cursor over this icon, a pop-up
message opens with a description of the Message Type Code.
Size -- The size of each message in kilobytes. A kilobyte is roughly equal to 1,000 bytes or characters.
Seq. ID -- The order in which messages were received.
NOTE: Translated messages do not have a Sequence ID.