Add multiple domains or domain aliases

For your G Suite or Cloud Identity account

For no additional cost, you can also add email addresses to your current domain.
Add an email alias to a user  or group  (mailing list).

If you own another domain, you can add it to your G Suite or Cloud Identity account.
Your primary domain
(Used to sign up for G Suite or Cloud Identity)

Another domain you own

You have two options for adding a domain (or subdomain) :

  • A domain alias: Give users an additional email address at the domain.
  • An additional domain: Create new users at the domain (also called a secondary domain)

Note: If you have G Suite legacy free edition, you can only add a domain alias. You can't add an additional

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.

Example: Ann signed up for G Suite with your-company.netShe also owns and adds it as a domain alias. She and all her team automatically get email addresses at both domains. They manage all messages from their inbox at    


For information on restrictions, see Limitations with multiple domains.

Option 2: Create new users at the domain

If you have the legacy free edition of G Suite, upgrade to G Suite Basic to get this feature. 

Add the domain as an additional (secondary) 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 account, email address, and mailbox for their domain
Pay for each user account in the additional domain

Example: Ann manages two separate teams. Each has their own domain. She adds as a secondary domain in G Suite.

Each team member has their own email address, mailbox, and user account for their domain. She manages all domains and users in her Admin console at (her primary domain). Team Team
Important: For information on restrictions, see Limitations with multiple domains.

STEP 2. Add the domain alias or additional domain

  1. Sign in to your Google Admin console.

    Sign in using your administrator account (does not end in

  2. From the Admin console Home page, go to Domains.

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

  3. Click Manage domains and then Add a domain or a domain alias.
  4. 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, secondary domain with its own users.

      If you have the legacy free edition of G Suite, upgrade to G Suite Basic to get this feature. 

  5. Enter the name of the domain or subdomain 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.
  6. 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
  7. Click Verify and continue to setup email delivery.
  8. Update the domain's MX records to set up Gmail (G Suite only) for your added domain. 
  9. 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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