check process postfix with pidfile /var/spool/postfix/pid/master.pid
	group mail
	start program = "/etc/rc.d/init.d/postfix start"
	stop  program = "/etc/rc.d/init.d/postfix stop"
	if failed port 25 protocol smtp then restart
	if 5 restarts within 5 cycles then timeout
	depends on postfix_rc

check file postfix_rc with path /etc/rc.d/init.d/postfix
	group mail
	if failed checksum then unmonitor
	if failed permission 754 then unmonitor
	if failed uid root then unmonitor
	if failed gid root then unmonitor