The SEND command sends the requested files back to you via
    electronic mail. Wild cards can be used in the file-spec
    parameter to specify multiple files. Each file is sent as a
    separate message.

    The optional extension parameter is supplied for compatibility
    with BITNET's LISTSERV file servers. When supplied, a period
    followed by the value of this parameter will be appended to the
    value of the file-spec parameter to form the actual file name to
    use. For instance, the command

    SEND NEWTAGS DESCRIPT

    is interpreted as a request for the file NEWTAGS.DESCRIPT and is
    equivalent to the command

    SEND NEWTAGS.DESCRIPT

    Large files can automatically be split into multiple smaller
    files prior to transmission; see the description of the MAXIMUM
    command for specific details. When the MAXIMUM command is used,
    it must be specified prior to the SEND command; e.g.,

    MAXIMUM BYTES 10000
    MAXIMUM LINES 1000
    SEND [BOOK]CHAPTER*.TXT

    Files can be read in a variety of ways; this can be controlled
    with the MODE command or the /MODE qualifier. Files containing
    non-text information must be encoded in some way; the ENCODING
    command or the /ENCODING qualifier control the encoding used.
    When using the MODE and ENCODING commands, be sure to specify
    them before the SEND command requiring their use.

    Use the DIRECTORY and INDEX commands to obtain information on
    available files which can be obtained with the SEND command.