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Routine: XMR4

XMR4.m

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  1. XMR4 ;ISC-SF/GMB-SMTP HELP ;04/17/2002  11:17
  1.  ;;8.0;MailMan;**51**;Jun 28, 2002;Build 9
  1. HELPME ;
  1.  N XMALL
  1.  S XMALL="HHHH^HELO^HELP^MAIL^NOOP^QUIT^RCPT^RSET^TURN^DATA"
  1.  I XMP="ALL" D ALL G END
  1.  I U_XMALL_U[(U_XMP_U) D SHOW(XMP) G END
  1.  D SHOW("HHHH")
  1. END I 'ER S XMSG="214 " X XMSEN
  1.  Q
  1. ALL ;
  1.  N I,J
  1.  F I=1:1:$L(XMALL,U) D SHOW($P(XMALL,U,I)) Q:ER
  1.  Q
  1. SHOW(XMCMD) ;
  1.  N I
  1.  F I=0:1 S XMSG="214-"_$P($T(@XMCMD+I),";",3,99) Q:$L(XMSG)=4  X XMSEN Q:ER
  1.  Q
  1. HHHH ;; 
  1.  ;;This is the simple mail transfer protocol receiver
  1.  ;;Commands currently understood are: 
  1.  ;;HELO <domain> (which initiates a transaction)
  1.  ;;MAIL FROM: <reverse-path>
  1.  ;;RCPT TO: <forward-path>  (which names a recipient)
  1.  ;;DATA (terminated with a single line of '.')
  1.  ;;HELP (which displays this text)
  1.  ;;NOOP (which does nothing)
  1.  ;;RSET <reason for> which stops transmission of message
  1.  ;;STAT (which displays the current status of the receiver)
  1.  ;;TURN (Which turns around the line; Sender becomes receiver)
  1.  ;;QUIT (which terminates the connection)
  1.  ;; 
  1.  ;;CHRS <domain> initialize a remote domain
  1.  ;;Extensions:
  1.  ;;MESS ID:XMREMID Sending message remote ID to allow processing to stop
  1.  ;; 
  1.  ;;Enter HELP ALL to see further discussion on all commands, or
  1.  ;;HELP <command> to see further discussion of <command>.
  1.  ;;
  1. HELO ;; 
  1.  ;;The HELO command is used to identify the sending host to the receiver:
  1.  ;; 
  1.  ;;   HELO <domain>
  1.  ;; 
  1.  ;; Where <domain> is the name of the sending host.
  1.  ;; 
  1.  ;;If the receiver will accept mail, it responds with its name.
  1.  ;; 
  1.  ;;The HELO command must be the first command of a mail sequence.
  1.  ;;
  1. MAIL ;; 
  1.  ;;The MAIL command is used after a HELO command to ask a receiver to
  1.  ;;accept a mail message.  The format is:
  1.  ;; 
  1.  ;;  MAIL FROM: <user>@<site>
  1.  ;; 
  1.  ;;where <user> is the name of the user sending the message, and <site>
  1.  ;;is the name of the site sending the mail, in Internet domain
  1.  ;;format.
  1.  ;;
  1.  ;;The receiver will respond with "250 OK" if accepted, and "501 Invalid
  1.  ;;Reverse path specification" if not.
  1.  ;; 
  1.  ;;This command is followed with RCPT and DATA commands to name
  1.  ;;and transfer the data, respectively.
  1.  ;;
  1. RCPT ;; 
  1.  ;;This command is used to identify the recipients of the mail.
  1.  ;;Its format is:
  1.  ;; 
  1.  ;;   RCPT TO: <user>
  1.  ;; 
  1.  ;;If the user is found, the receiver will respond with "250 OK";
  1.  ;;Otherwise, it will say "501 Invalid forward path specification".
  1.  ;; 
  1.  ;;Each recipient of the message is named individually.  The VRFY
  1.  ;;command can be used to confirm the existence of a user without
  1.  ;;actually putting him on the recipient list. 
  1.  ;;After recipients are specified, the DATA command is used to transfer
  1.  ;;the body of the message.
  1.  ;;
  1. DATA ;; 
  1.  ;;The DATA command is used after the MAIL and RCPT commands to transmit
  1.  ;;the body of the message.  The command has no arguments.  The receiver's
  1.  ;;response to the command is to either issue an error message:
  1.  ;;"503 no recipients specified" or "354 Start mail input".
  1.  ;; 
  1.  ;;Data will be accepted until a line consisting of a single period is
  1.  ;;detected.  If any line begins with a period, it must have an
  1.  ;;additional period inserted at the beginning of the line.
  1.  ;; 
  1.  ;;After the DATA command is completed, the receiver will respond with
  1.  ;;"250 OK" if the message was accepted, or an error message if 
  1.  ;;otherwise.
  1.  ;;
  1. RSET ;; 
  1.  ;;The RSET (Reset) command is used to reset the receiver to its initial
  1.  ;;state and cancel any mail in progress.  The sender does not need to
  1.  ;;issue HELO again.
  1.  ;;
  1. VRFY ;; 
  1.  ;;The VRFY (Verify) command is used to verify the existence of a user
  1.  ;;at the receiver.  The format is:
  1.  ;; 
  1.  ;;   VRFY <user>
  1.  ;;  
  1.  ;;The computer will respond with the user's full name if found, or
  1.  ;;"550 User not found" if not.  This command can be issued at any 
  1.  ;;time, and does not affect the recipient list.
  1.  ;;
  1. EXPN ;; 
  1.  ;;The EXPN (Expand) command causes the receiver to expand a mailing
  1.  ;;list, showing the sender the list of individuals in the list.
  1.  ;;
  1. HELP ;;
  1.  ;;The HELP command displays user assistance information for interactive
  1.  ;;users.  If issued without an argument, it gives a general introduction.
  1.  ;;If given an argument naming a command, it gives further information
  1.  ;;on that command.  If given an argument of "ALL", it displays 
  1.  ;;help on all arguments.
  1.  ;;
  1. NOOP ;; 
  1.  ;;The NOOP (no operation) command causes the receiver to respond with
  1.  ;;a "250 OK" message.
  1.  ;;
  1. QUIT ;; 
  1.  ;;The QUIT command is used to terminate the mail transfer process.
  1.  ;;The connection will be closed, and any mail transfers not concluded
  1.  ;;with a successful DATA command will be lost.
  1.  ;;
  1. TURN ;;  
  1.  ;;