We have Exchange 2007. I am currious if there is a way to monitor the amount of Emails being received by Exchange. What I am most interested in is the ability to see if there has been a spike in EMail quantity received. The scenario for this request is in the event that say our organization was to come under a mass mailing attack, we would like to be able to view and analyze the rise in activity and possibly see where they are comming from.
I am interested in built-in Exchange methods or free MS tools or 3rd party tools. I have been searching around, but thought I would go straight to the experts first on this one.