From ctbates@tva.gov Mon Aug 23 06:55:41 1999
Date: Thu, 08 Jul 1999 11:03:40 -0400
From: Tom Bates <ctbates@tva.gov>
To: mon@linux.kernel.org, meir@education.gov.il
Subject: Repost of smtp_rt.monitor

My previous attempt to post this did not make it out of our MS email
system intact. Here it is again:

I modified smpt.monitor to watch an email gateway between smpt and MS
Exchange, but presumably it could watch any email gateway.
smtp_rt.monitor sends an empty message to the monitored mailbox beyand
the gateway (monitored_mailbox@yourdomain.com), which sends a return
receipt back to a mailbox on the MON host, which has a .forward file
piped to mail_handler (e.g., |/home/yourname/mail_handler) which handles
the return receipt and lets the monitor know that the round-trip was
successful.

Tom Bates
TVA
=============.forward==============
|/home/yourname/mail_handler
=============end .forward==============

=============mail_handler==============
#!/usr/bin/perl
@msg = <STDIN>;
$x = 0;
while ($x < @msg) {
  if ($msg[$x] =~/^Subject:/) {
    $msg[$x] =~s/^Subject: Delivered: //;
    $timestamp = $msg[$x];
    chop ($timestamp);
    }
$x++;
}
open (OUTFILE, ">/tmp/$timestamp");
close (OUTFILE);
=============end mail_handler==============

=============smtp_rt.monitor==============
#!/usr/bin/perl
# smpt_rt.monitor
# Tries to connect to a SMTP server, send a timestamped message, and
# wait for the return receipt to arrive within the timeout period.
#
# Tom Bates
# Tennessee Valley Authority
# ctbates@tva.gov
#
# For use with "mon".
#
# Arguments are "-p port -t timeout host [host...]"
#
# Adapted from "smtp.monitor" , which was
# Adapted from "http.monitor" by
# Jim Trocki, trockij@transmeta.com
#
# http.monitor written by
#
# Jon Meek
# American Cyanamid Company
# Princeton, NJ
#
# $Id: smtp.monitor,v 1.5 1999/04/30 10:20:09 trockij Exp $
#
#    Copyright (C) 1998, Jim Trocki
#
#    This program is free software; you can redistribute it and/or
modify
#    it under the terms of the GNU General Public License as published
by
#    the Free Software Foundation; either version 2 of the License, or
#    (at your option) any later version.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#
#    You should have received a copy of the GNU General Public License
#    along with this program; if not, write to the Free Software