Answer
To stop receiving event notifications:
- Click on your profile image in the top right corner of the XING website and choose Settings.
- Then click on Notifications.
- Now click on E-Mail notifications and choose Events.
- Here you can decide which notifications you want to receive by sliding the toggle.
- The e-mail notification is turned off when the toggle is greyed out.
Here, you can find information on how to deactivate group notifications.