Add a domain alias or secondary domain

For your Google Workspace or Cloud Identity account

If you own another domain, you can add it to your Google Workspace or Cloud Identity account. For example, you might manage multiple businesses or brands, each with their own domain. Depending on your needs, you add a domain as a domain alias or a secondary domain.


Give users an email address at another domain
OR      
Manage separate teams of users or businesses at different domains
 

   

Users get email addresses at both domains.  

You have different users for each domain.

Users can send and receive email from either address    A user gets a Google Workspace account, email address, and mailbox for their domain
No extra cost per user  

Pay for each user account that you add to your secondary domain

Help me choose

More about domain aliases & secondary domains

About domain aliases (user alias domains)

Important: The Admin console will soon begin referring to domain aliases as user alias domains. You will see both terms until this transition is complete.

Give users an email alias at another domain

For example, you signed up for Google Workspace with your-company.com (your primary domain). You own the domain other-company.com and add it as a domain alias.

Each user gets an email address at both your primary domain and the domain alias.

Everyone can send and receive email from either address.

Ann's address ann@your-company.com
Ann's email alias ann@other-company.com
All messages arrive in the user’s primary inbox.
Each mailing group also gets an email address at the domain alias. For example, if you have info@your-company.com, you automatically get info@other-company.com.
No extra cost per user or group. Add up to 20 domain aliases to your Google Workspace account.

Note: A user's alias address might be visible to other users. For example, if a recipient searches Gmail for messages from "Ann", search results might include messages from ann@your-company.com and ann@other-company.com.

Learn more in the FAQand Limitations with multiple domains.


If you manage a large organization: Your users might have a personal Google Account that already uses the domain. When you add the domain alias, those users' accounts are automatically renamed. All data in the accounts remains outside of your organization’s management. To find users with accounts, first add the domain as a secondary domain. The list of accounts is generated within 24 hours. Learn more about conflicting accounts.

About secondary domains

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

For separate teams at different domains

For example, you signed up for Google Workspace with your-company.com (your primary domain). You manage a team that has their own domain, other-company.com. You add other-company.com as a secondary domain to your Google Workspace account.

Each of your domains has a different set of users
Users get a Google Workspace account, email address, and mailbox for their domain
Pay for each user account
Manage all domains and users in the Admin console for your primary domain
Add up to 599 secondary domains
You can add a domain alias to a secondary domain (requires the Directory API). Or switch the secondary domain to be the primary domain for your Google Workspace account. Learn more

Important: Some information and features are linked only to your primary domain. For example, you can't set up a separate billing address or company logo for a secondary domain.

Learn more in the FAQand Limitations with multiple domains.

Add your domain now

New update being released: An updated version of this feature is currently rolling out to customers.
 
On your Admin console Home page, click Domainsand thenManage domains, and use the instructions that match what you see in your Admin console:
 
Use current version instructions Use updated version instructions
A screenshot shows an example of the new interface for managing domains

Current version instructions

Add a domain alias (give existing users an address at another domain)
  1. Sign in to your Google Admin console.

    Sign in using your administrator account (does not end in @gmail.com).

  2. From the Admin console Home page, go to Domainsand thenManage domains.
  3. In Manage domains, click Add a domain alias.

    The Add a Domain and Add a Domain Alias links are shown.


    Note: If you have the legacy free edition of G Suite, the "Add a domain" option isn't available.
    To add a user alias domain to a secondary domain, use the Directory API.

  4. Enter the name of the domain.
    If you recently removed the domain from your Google Workspace account, you need to wait up to 24 hours before adding the domain. Check troubleshooting tips.
  5. Click Continue and verify domain ownership
    Follow the instructions to verify that you own this domain. For help, contact your domain host or Google Workspace support.
  6. After your domain is verified, set up email. Point your mouse cursor near the domain and click Set up Google MX records.

    Note: If you plan to use Gmail with the domain, set up MX records.


    A mouse pointer is shown pointing at the Set up Google MX records link.
  7. Update the domain's MX records to set up Gmail for your domain alias.

    Depending on your domain host, it might take up to 48 hours for your domain to be verified and email set up.

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

Add a secondary domain (manage teams at different domains)

Tip: Try the Home page quick link. On your Admin console Home page, click Add a domainand thengo to step 4 below. 

  1. Sign in to your Google Admin console.

    Sign in using your administrator account (does not end in @gmail.com).

  2. From the Admin console Home page, go to Domainsand thenManage domains.
  1. In Manage domains, click Add a domain.

    The Add a Domain and Add a Domain Alias links are shown.

    Note: If you have the legacy free edition of G Suite, the "Add a domain" option isn't available.

  2. Enter the name of the domain.
    If you recently removed the domain from your Google Workspace account, you need to wait up to 24 hours before adding the domain. Check troubleshooting tips.
  3. Click Continue and verify domain ownership
    Follow the instructions to verify that you own the domain. For help, contact your domain host (typically where you purchased your domain) or Google Workspace support.
  4. After your domain is verified, set up email. Point your mouse cursor near the domain and click Set up Google MX records.

    Note: If you plan to use Gmail with the domain, set up MX records.


    A mouse pointer is shown pointing at the Set up Google MX records link.
Updated version instructions

Add a user alias domain or a secondary domain

Important: In the updated version of this feature, domain aliases are now called user alias domains.

  1. Sign in to your Google Admin console.

    Sign in using your administrator account (does not end in @gmail.com).

  2. From the Admin console Home page, go to Domainsand thenManage domains.
  3. In Manage domains, click Add a domain.

    Note: If you have the legacy free edition of G Suite, the "Add a domain" option isn't available.

  4. Enter the name of the domain you're adding.

    If you recently removed this domain from your Google Workspace account, you need to wait up to 24 hours before adding the domain. Check troubleshooting tips.

  5. Select a domain type:
    • Secondary domain
      • if you plan to replace your primary domain with this new domain. Learn more about changing your primary domain.
      • if you want to add a new domain for a separate team or business unit.
    • User alias domain:
      • if you want to add email aliases (alternate email addresses) for your existing users. Google Workspace will automatically create aliases after you've added the domain.
  6. Click Add and start verification.

    Follow the instructions to verify that you own the domain.

  7. If you want to use Gmail with this domain, return to Manage Domains after your domain is verified. Find the new domain and click Activate Gmail.

    A mouse selector clicks the Activate Gmail button

    Follow the instructions to set up Gmail for your new domain.

Start using your new domain

Send and receive messages with your alternate email address

Once your domain alias is active, users can use their new alternate email addresses to send and receive messages.

Tip: Share instructions with your users.

How your email address and alias work together

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

Send messages from your alias address

To send message, add your alias address to your Gmail account.

  1. On your computer, open Gmail.
  2. In the top right, click Settings Settingsand thenSettings.
  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 "" to select your alias address.

Send from alias

Receive messages at your alias address

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

If you don't receive the test message within 48-72 hours, contact your domain host. They can check whether your domain verification and MX records (for email) are set up correctly.

Add users and email addresses to your secondary domain

Once your secondary domain is active:

  1. Follow the steps to add user accounts in the secondary domain.
  2. After you enter the user's Primary address, you choose the domain. At the right of the @ sign, click the Down arrow ""and select the user's domain.

For tips on managing users accounts, go to Limitations with multiple domains.

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