To change what you get notifications and emails for, change your notification settings!
Web
On a web browser, click on Settings, from the menu in the bottom left corner of any page on Chess.com:
Select Notifications from the menu:
From there you will be able to uncheck any box to stop getting any notifications you don't want:
Don't for get to click SAVE at the very bottom when you're done!
Mobile
On your mobile app, first, tap on 'more' in the bottom right of your screen, then choose 'settings'
From the settings menu, choose ‘Notifications’
Here you can choose which notifications you’d like to keep, and which ones to remove