Add more domains to your G Suite or Cloud Identity account

If you own other domains, you can add them to your G Suite or Cloud Identity account. You can also add a subdomain,

When you add another domain, you can give existing users email addresses at the domain or create new users at the domain.

If you want to switch your primary domain to another domain, see these steps.

STEP 1. Choose how to use your domain with G Suite or Cloud Identity

Decide whether to add your domain as a domain alias or as an additional domain.


Option 1: Give existing users an email address at the domain


Add the domain as a domain alias.


Each user gets an email address at both your primary domain and domain alias
Each group (such as @info or @support) also gets an email address at the domain alias
Everyone can send and receive email from either address
All messages arrive in the user’s current inbox
No additional cost per user or group. Add up to 20 domain aliases.

Option 2: Create new users at the domain


Add the domain as an additional domain.


Good for managing separate teams of users or businesses at different domains
Create user accounts for the additional domain
Each domain has a different set of users
Users have their own G Suite or Cloud Identity account, email address, and mailbox for their domain
Pay for each user account in the additional domain

STEP 2. Add the domain alias or additional domain:

     From the Admin console Home page, go to Domains.

      To see Domains, you might have to click More controls at the bottom.    

  1. Click Add/remove domains > Add a domain or a domain alias.   
  2. Choose how to add the domain:       
    • Add a domain alias of primary-domain-name: This gives everyone in your primary domain an email address at the alias domain. (Note: To add a domain alias to secondary domain, you must use the Domains Aliases API.)
    • Add another domain: Adds a separate, additional domain with its own users.       
  3. Enter the name of the domain or sub-domain to add. You must own the domain name, and it can't be used with any other Google Account. If the domain is already in use, you’ll get an error message. See troubleshooting tips.
  4. Click Continue and verify domain ownership
          Follow the instructions to verify that you own the domain. If you need assistance, contact your domain host (typically where you purchased your domain) or G Suite Support
  5. Click Verify and continue to setup email delivery.
  6.     Update the domain's MX records to set up Gmail (G Suite only) for your added domain. 
  7.     Click I have completed these steps.  


For large organizations:  It can take more than 24 hours after verification for all users and groups to receive their alias email addresses.


Once your domain is active, see the Step 3 below to set up your users with their new email address or account. 

STEP 3. Set up your users with the new domain:

For a domain alias


Once your domain alias is active, messages sent to addresses at your domain alias automatically arrive in users' inboxes. To test, send a message from another account (not your G Suite account) to your new address. 


To send messages from their new address, users must add the address to their Gmail account. Share the sample message and instructions with your G Suite users.


For an additional domain


Once your additional domain is active:


  1.   Add each user to the domain in the Admin console.
  2.   At the right of the @ sign, choose the user's domain from the dropdown list.  


We recommend reviewing Limitations with multiple domains for help with managing users accounts. 


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