Is there a way?
Not to be rude or anything but is there a way to stop as many emails coming in?
Yes there is! If you hover over your name (in the right corner of your Duolingo screen there should be your name, your streak, how many lingots you have and a bell (your notifications)). There should be like a drop down box it says Your Profile,Settings,Help,Keyboard shortcuts and logout. You want to click on settings. So now on the right side of your screen there should be your name and some blue words that say "view you profile" then below all of that there are some certain settings. The first one is "account" the second one is "learning language" so on and so on. If you keep going down there should be something that says "Notifications" Click on that. There should be something that says "email me when..". On the right of that there are these boxes you an click on whichever one (or ones) you want to get notified for! Let me know if you want help with anything else!
have you tried going to Notifications in Settings under your profile tab? If you uncheck a few boxes that should help. Or perhaps change your username to something hostile... :)