0       */2     *       *       *       /usr/bin/wget http://www.spamhaus.org/drop/drop.lasso -qO /tmp/drop && /bin/cat /tmp/drop | /bin/grep -vE '^;' | /usr/bin/awk '{ print $1 }' | /bin/grep -E '^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}/[0-9]{1,2}\b' | /usr/bin/awk '{ print $1"\t\treject" }' > /etc/postfix/postscreen_access_blacklist.cidr