Description

   The READ command may be used to display envelope and header
   information for one or more queued messages. To also view the
   message content, use the /CONTENT qualifier.

   The messages to display are specified by their message
   identification numbers shown by the most recent DIRECTORY
   command. That number appears in the leftmost column of the
   DIRECTORY command listing. Ambiguous message numbers must be
   qualified by the proper channel name with the /CHANNEL qualifier.