List currently queued messages.

    Syntax

      DIRECTORY  [channel-name]

    Command Qualifiers             Defaults

    /DATABASE                      See text
    /DIRECTORY_TREE                See text
    /ENVELOPE                      /NOENVELOPE
    /FILE_INFO                     /FILE_INFO
    /FROM                          See text
    /HELD                          /NOHELD
    /MATCH                         See text
    /OWNER                         See text
    /TO                            See text
    /TOTAL                         See text