A tab for notification subscription settings and default language settings has been added to the user profile. Now you can unsubscribe from what you consider unnecessary, but please note that you cannot unsubscribe from service and billing notifications sent to your email.
In addition, the distribution of informational messages about the availability of courses or exams to your email is managed in the respective Courses or Exams section. There, you can check a box to receive notifications when a particular course or exam becomes available. You can also uncheck it there.