~OLCommand :~RS rmail
~OLUsage   :~RS rmail [new/<message #>]

If the option 'new' is used then you will read only those messages that
have been sent to you since you last checked your mailbox.  If a message
number is given then you will be shown only that message, otherwise any
mail that you currently have in your mailbox.
Message numbers can be checked using the ~FGfrom~RS command.
