Unfollow a specific app
To turn off email notifications for bugs from a specific app, click on your name in the top-right corner of your Dashboard and select Manage apps .
In the list of all your active apps, expand the one you want to unfollow. There, turn the option Email me when a bug is reported in this app off, and you're done.
Unfollow all apps in a workspace
If you're looking to turn off email notifications for all the apps in a workspace, visit Settings › My Account › Notifications and turn off the option Email me when bugs are reported in apps I follow .