I want to stop email notification everytime I receive an email.
You need to select the user for whom you are turning off the notification under Notification tab in RC online admin portal:
Using the RingCentral Phone for Desktop, you can dial or receive test calls, send and receive test SMS or Fax messages in your sandbox environment.
Download RingCentral Phone for Desktop:
Tip: switch to the "sandbox mode" before logging in the app:
4 People are following this question.