Add multiple domains or domain aliases

For your G Suite or Cloud Identity account

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 can add a domain (or subdomain) as:

  • A domain alias: You and your users get email addresses at the domain. Send email and receive email at your primary domain and domain alias. No additional cost.


  • An additional domain: Create user accounts at this domain (also called a secondary domain). If you have G Suite legacy free edition, you can only add a domain alias not an additional domain.
To add email addresses to your current domain, you can create aliases for a user or group (mailing list) at no additional cost.
STEP 1. Choose how to use your domain

Option 1: Give 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 mailing 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 primary inbox
No additional cost per user or group. Add up to 20 domain aliases.

Example: You signed up for G Suite with (your primary domain). You own the domain and add it as a domain alias.

You and your team automatically get email addresses at both domains.

For information on restrictions, go to 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 get a G Suite account, email address, and mailbox for their domain
Pay for each user account in the additional domain

Example: You manage two separate teams that have their own domain. You add as a secondary domain.

Each team member has their own email address, mailbox, and user account for their domain. You manage all domains and users in your Admin console at your primary domain

  Primary domain Team
  Secondary domain Team
Important: For information on restrictions, check 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 Domainsand thenManage domains.
  3. Add the domain to your account. The Admin console includes either of these steps (both work the same way):
    Add domain option
    • Click Add a domain or a domain alias.
    • Then click Add a domain alias of primary-domain-name or Add another domain (not available with the legacy free edition of G Suite).
    Choose domain setting
    • Click Add a domain or Add a domain alias.

    (Note: To add a domain alias to secondary domain, use the Domains Aliases API.)

  4. Enter the name of the domain or subdomain. 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. Check troubleshooting tips.
  5. 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.
  6. Click Verify and continue to setup email delivery.
  7. Update the domain's MX records to set up Gmail ( G Suite only) for your added domain.
  8. 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, go to Step 3 to set up your users with their new email address or account.

STEP 3. Start using your domain

Use your domain alias

Receive messages

Messages sent to your alias address automatically arrive in your inbox. To test, send a message from another account (not your G Suite account) to your new alias.

Send messages from your alias address

Add your alias address to your Gmail account.

  1. On your computer, open Gmail.

  2. In the top right, click Settings Settingsand then Settings.
  3. Click the Accounts and Import or Accounts tab.
  4. In the "Send mail as" section, click Add another email address.
  5. Enter your name and your alias address.
  6. Check the Treat as an alias box.
  7. Click Next Step and follow the confirmation steps.

When you send a message in Gmail, click From Down Arrow to select an address.

Send from alias

How your primary email address and alias work together

  • You sign in your G Suite account with your email address.
  • You can create documents and files only with your email address
  • People can share files with either your email address or alias.
  • Google Calendar invites and sharing invites are sent only from your email address.

Tip: Share the sample message and instructions with your G Suite users.

Use your additional domain

Once your additional domain is active:

  1. In the Admin console, add new user accountsto your additional domain.
  2. At the right of the @ sign, click the Down arrow Down Arrowand select the user's domain.

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

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