Go to Special:Preferences, click the Email tab and review the checkboxes under Email me when.... Can't guarantee it will stop all the emails, because I think you have to also possibly remove stuff from Special:Following.
Special:Preferences will allow you to stop receiving certain type of emails. However, it will not stop emails on a per-page basis. If you still want to receive emails about some pages but not others, then you need to edit your watchlist (which is how the lists on Special:Following are generated). On the wiki for which you wish to stop getting emails, go to Special:EditWatchlist.