mta(8)                              CLIX                              mta(8)



  NAME

    mta - Runs the Intergraph X.400 Message Handling Service (MHS) dispatcher

  SYNOPSIS

    mta

  DESCRIPTION

    The mta command monitors queues to determine when to submit or receive
    X.400 mail messages.  The command is known as the message transfer agent
    (MTA).

    The mta command monitors two queues:  the submission queue (SQ) and the
    input queue (IQ).  The SQ contains messages submitted locally.  The IQ
    contains messages received from adjacent MTAs through the reliable
    transfer server (RTS).  Each of these queues is implemented as a
    directory, with each message in a separate file in the directory.

    Each message is parsed and the list of recipients is examined.  For each
    recipient, the dispatcher determines if the message can be delivered
    locally or if it must be routed to an adjacent MTA.

    The MTA uses a fixed routing table, which is set up by the MHS system
    administrator using the md command, to make its routing decisions.  The
    mta command has a list of all local recipients in the registration table.
    For each local recipient, a copy of the message is inserted in the
    recipient's delivery queue (DQ).

  FILES

    /usr/lib/mhs/config.dat     MTA configuration file.

    /usr/lib/mhs/defertab       MTA deferred authorization table file.

    /usr/lib/mhs/neighbor.dat   MTA neighbor table file.

  DIAGNOSTICS

    The following diagnostics messages are provided:

    error getting semaphore; errno xxx

    fopen failed

    fread failed returned xxx

    create lockfile filename errno xxx

    remove semaphore failed; errno xxx



  2/94 - Intergraph Corporation                                              1

  mta(8)                              CLIX                              mta(8)



  EXIT VALUES

    Exit values are not valid.

  CAUTION

    The user should never invoke the mta command.  This command is
    automatically started by either the sendxmail or rts process.  There
    should never be more than one mta process running on a system at the same
    time.

  RELATED INFORMATION

    Commands:  mta(8), md(8), sendxmail(8)

    Intergraph ISO/OSI Administrator's Guide






































  2                                              Intergraph Corporation - 2/94