Repeat SNMP Email notofications when pool member is down

Yes, notifications are working as expected. I just want to modify it so that for every 5 minutes the pool is still down, it will fire off another email notification. If pool is down for 0 mins --> send notification If pool is down for 5 mins --> send notification If pool is down for 10 mins --> send notification If pool is down for 15 mins --> send notification If pool is down for 20 mins --> send notification If pool is down for 25 mins --> send notification ....