Email alert for external blocklist

Hello, 

I followed the guide at Administration Guide | FortiGate / FortiOS 6.4.10 | Fortinet Documentation Library to add an external blocklist.

To avoid false positive and only monitor the blocklist traffic in a first place, i decided to allow the traffic going to the external blocklist. 

But, there is a problem, i was wondering if it's possible to trigger an email alert when the blocklist policy's is triggered 

Thanks you