Mark user-created groups with a suffix

As a Groups administrator, you can add an identifying word or phrase to the end of email addresses of groups created in the Google Groups app at

For example, if you specify the suffix -user-created, and a user creates the group, the group email address is

Why add a suffix

Add a suffix to user-created groups if you want to:

  • Differentiate between groups created in the Admin console and in Google Groups. The suffix is applied only to groups created in Google Groups (at 
  • Ensure users don’t create groups with email addresses that you or other administrators might need to use, such as “”.

Add a suffix to user-created group email addresses

The suffix you specify here is added to email addresses of any new groups created at the Google Groups app. If you change to a different suffix, new groups receive the new suffix while existing groups keep their original suffix.

Tip: To make the suffix stand out in your Admin console's Groups list, add a hyphen at the beginning of the suffix.

  1. Sign in to your Google Admin console.

    Sign in using your administrator account (does not end in

  2. In the Admin console, go to Menu and then Appsand thenGoogle Workspaceand thenGroups for Business.
  3. Click Preference settings.
  4. Enter a suffixand thenclick Save

Note: The suffix isn't added to groups that users have already created, groups created in the Admin console, or groups created through Google APIs.

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