Calendar Invites – Stop receiving email notifications of people responses

In Outlook, turn off response notifications for individual meetings:

1. When you create a new meeting invite, go to the “Response Options”.
2. Uncheck “Request Responses” to stop receiving email notifications when people respond to that invite.
3. If you’ve already sent the invite, open the meeting from your calendar, click on “Response Options,” and adjust the settings.

Uncheck “Request Responses”

You are done !