POSTFIX blocked mails regular email report

mail-blocked.sh

#!/bin/bash
#
# cron ex: 1 0 * * * /usr/bin/nice -n 19 /usr/bin/ionice -c2 -n7 /root/scripts/mail-blocked.sh >> /root/scripts/cron.log

email=""
dir="/tmp/"
file="/var/log/mail.info"
occur="Blocked"

cd $dir

if [ -f ./script-mail-blocked ]
then
	if [ -f ./script-mail-blocked-last ]
	then
		rm ./script-mail-blocked-last
	fi

	mv ./script-mail-blocked ./script-mail-blocked-last
	touch ./script-mail-blocked
	chmod -R 777 ./script-mail-blocked
else
	touch ./script-mail-blocked
	chmod -R 777 ./script-mail-blocked
fi

grep $occur $file > ./script-mail-blocked

if [ -f ./script-mail-blocked-last ]
then
	if diff ./script-mail-blocked ./script-mail-blocked-last >/dev/null ;
	then
		rm ./script-mail-blocked
	else
		contain=$(diff ./script-mail-blocked ./script-mail-blocked-last)
		echo -e "SMTP report (blocked):\n $contain" | mail -s "SMTP report (blocked)" $email
	fi
fi