Calendar spam happens when random invitations and appointments appear on the Google Calendar
Google came up with a new feature that will help users organize their Google Calendars and keep them spam-free. Calendar spam happens when random invitations and appointments appear on the Google Calendar, even if the recipient has never accepted or opened them. This issue has been raised by users who have been flooded with spam. The new Google Calendar feature will only display events on your calendar if the invite is from a known sender, like people in your contact list or colleagues or people you’ve interacted with before. One can also choose to have all the invitations appear on your calendar or just the invitations you’ve accepted. The default option is to show invitations from everyone.
The new feature will be available to all users with personal Google accounts, legacy G Suite Basic, Business customers, and Business customers over the next 15 days.
Here’s how to enable the new option:
You may still get email invitations from unknown senders, but the events will only appear on their calendars if they are accepted.