#!/bin/sh
# 
# Original
# ---------
#	 http://www.rpi.edu/dept/acm/oldbin/vrfy
#
#	 http://www.Linux-Sec.net/Mail/scripts/mconnect.vrfy.sh.txt
#	 http://www.Linux-Sec.net/Mail/scripts/vrfy.uhowto.txt
#
#
# vrfy
# ----
#   ftp://ftp.nikhef.nl/pub/network/vrfy.tar.Z
#   nikhefh.nikhef.nl:/pub/network/vrfy.tar.Z
#
#       http://ftp.yars.free.net/pub/doc/old/vrfy.gz
#       http://wuarchive.wustl.edu/doc/noctools/comp.networks.noctools.tools/vrfy.txt.Z
#
# mconnect
# --------
#	http://cr.yp.to/ucspi-tcp/mconnect.html
#       http://ftp.yars.free.net/pub/doc/old/mconnect.gz
#       http://wuarchive.wustl.edu/doc/noctools/comp.networks.noctools.tools/mconnect.txt.Z
#
#  netcat
# -------
#       ftp://coast.cs.purdue.edu/pub/tools/unix/netcat/nc110.tgz
#       ftp://ftp.avian.org/src/hacks/nc110.tgz.
#
#
#
# 02-Jun-02 amo Addec Comments or original from rpi.edu
#
#
#
# Use SMTP VRFY command to check the validity of a user, host pair
#
#  Usage:  vrfy user host 
#
#	vrfy [ -R -vvv -dHn ] user host
#
#	vrfy [ -n ] user host
#
#
# Space, not at sign!!
# $1 is (login)name to check for 
# $2 is domain to connect to 
#
PATH=/usr/bin:/bin
#
mconnect=/usr/etc/mconnect
# mconnect=/usr/local/bin/vrfy
#
progname=`basename $0`
#
usage="Usage: $progname userid [domain]"

if [ $# -lt 1 ]; then
   echo $usage >&2
   exit 1
fi

DOMAIN=$2
if [ ! "$DOMAIN" ]; then
   DOMAIN=`hostname -f`
#  DOMAIN="mail.its.rpi.edu"
fi

(
echo "HELO `hostname`" ;
echo "EXPN $1" ;
echo "QUIT"  
) | $mconnect $DOMAIN
#
exit 0
#
# end of file