How to prevent unmanaged Google accounts creation

Problem

How can you prevent the creation of consumer or unmanaged Google accounts in the domain for people that have an email address but do not have a Google Workspace user.

Environment

  • Admin console
  • User's section

Solution

Solution 1
  1. Access the Admin console.
  2. Create a user for every person who has an email address in your domain following these steps.

Solution 2
  1. Configure your mail server to block the Google sign up verification emails based on the following:

Cause

As long as a user can verify a non-Google email address through email, they would be able to create a consumer Google account (unmanaged account) if the email address they use does not exist in your Google Workspace account.