See screenshot. There were over 1000 evolution calendar notifications firing at me very quickly (I did some inbox cleaning today which seemed to re-invigorate very old meeting requests.) 

Thankfully I was able to turn notifications off in the user menu. However, I thought it might be worth thinking about throttling notifications because nobody wants 1000 notifications within a 1-2 minute period, especially from the same app. Maybe some kind of 'silence this application for the next 5 minutes' type of button like mugshot used to have.