You can learn how to set what sort of notifications you’d like to receive from BandLab here. To change your email notifications, you would have to do so on BandLab Web at this article's time of release.
- Select your Profile Picture on the top right panel
- Choose Settings
- Select Notifications on the left
- Make your changes and remember to click Update when you’re done
- Tap on the Profile Picture at the top left corner of your screen
- Tap the Settings icon on the top right of the screen
- Select Notifications to make your changes