There is an app for that.
Missed Call
It looks like it will let you customize the light for different events.
I am having the same problem and the missed call app is not for email notifications. i have the dock sitting on my night stand and when i get an email while I am sleeping, the green light blinking lights the room as it blinks on and off. this wakes me up so I need to turn it off. Any ideas?
The fastest way to get answers to questions like this is to call Tech Support. Try 800-922-0204.