Jarrod,
This was recently covered in another thread:
http://forum.nimsoft.com/t5/General-Development/Email-Status/m-p/4113
By default, the NAS does not track much detail in the activity log about the email messages that it sends, but you can use a script to send the email messages and write the information you need to the activity log. Carstein provided a script that would do that.
The alternative is to query the alarm history and report on that if it is easy to identify which alarms would have sent email. (For example, if email is sent for all alarms, this would be especially easy.) That is not quite the same but would be much easier if it gives you the information you need.
-Keith