If you are using HiveManager Connect, you would do that by going in to the HiveManager> Click on the person shaped Icon in the top right hand corner> Global settings> Email Notifications (left hand side menu). Here you can choose which email alerts you will get.
You can read more about this feature here if you're interested: https://docs.aerohive.com/330000/docs/help/english/ng/Content/gui/administration/managing-email-notifications.htm?Highlight=Email%20alerts
Hope that helps.
