MX V5.1 ECO 03, 15-NOV-1998

Change description:

   * Add logical name to control whether MX_LOCAL truncates
     lines longer than 255 characters.  This is the default
     behavior, to provide compatibility with DECnet.  If you
     do not use DECnet (or do not care if MX can deliver to
     DECnet addresses via VMS MAIL [SMTP-over-DECnet is not
     affected]), define the following logical name to increase
     the maximum allowed line length to 65,535 characters:

     $ DEFINE/SYSTEM MX_LOCAL_ALLOW_LONG_LINES TRUE

     To restore the default behavior, DEASSIGN the logical name.

Installation:

    1. Copy the appropriate image (VAX or Alpha) to MX_EXE:

          $ COPY MX_LOCAL.{AXP|VAX}_EXE MX_EXE:*.EXE

    2. Restart the MX Local process:

    	  $ MCP SHUTDOWN LOCAL
          $ @SYS$STARTUP:MX_STARTUP LOCAL

* If you have a mixed VMScluster with both VAX and Alpha systems,
  you will need both images - one for each architecture.