Library /sys$common/syshlp/mailhelp.hlb SHOW  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    The SHOW commands are used to display information about the Mail
    utility set up. For additional SHOW commands, enter HELP SET-SHOW
    at the MAIL> prompt. The following commands can only be used to
    display information; these commands cannot be used to set up the
    Mail utility.

  Additional Information (explode) :

• ALL
• DELETED
• KEY
• NEW_MAIL_COUNT