From Elendor
Syntax: +READ [[@<altname>] [<bboard name>] <messages>]
If you specify no arguments, "+read" by itself simply displays the text of the
first unread message in your mailbox. "+read" with a number after it
displays the text of the numbered message from your mailbox. "+read" with
a bulletin board name and a message number displays the numbered posting
from the named bulletin board. You may also use any of the extended
syntaxes described in HELP mail messages in place of <messages>.
Example 1: +read
(Displays the first unread message in your mailbox.)
Example 2: +read 5
(Displays the contents of message 5 from your mailbox.)
Example 3: +read public 1
(Displays the contents of the first post on the Public bulletin board.)