#!/bin/bash
# add any excessive validrcptto spammer to hosts.deny
spammers=`awk '/excessive/ {print $9}' /var/log/qmail/qmail-smtpd/current`
for ip in $spammers
do
net=`echo $ip | awk -F. '{print $1"."$2"."$3"."}'`
if [ `grep -c $net /etc/hosts.deny` = 0 ] ; then
echo "ALL : $net" >> /etc/hosts.deny
fi
done