Is anyone familiar with the networking monitoring software / system Zabbix?

I am running Zabbix on Ubuntu, It's the monitoring is wonderful,, and it basically does what it is supposed to. Maybe there is an option i am overlooking but when i configure Items/Triggers/Actions,, my actions (which is to send Email to an Administrative Group) actually loop up and i end up with multiple Emails for one trigger... I am looking for a way to get just 1 Email per trigger. For arguments sake i will include an example of my trigger item/trigger/action possibly i have configured improperly; Item; Fax Service is Down service_state[Fax] Trigger; {$ Z SQL Server:service_state[Fax].last(0)}#0 If the last value is not 0 then the trigger will send an Email Alert.. Other than that i don't think there is any more to the item, it's a part of a custom template that is assigned to servers.