123-reg.co.uk: Set up G Suite MX records

Important: If you purchased your domain from Google when you signed up for G Suite, you don’t need to set up Gmail. You can start using it now. If you’re signed in to your G Suite account, in the top right, click the App Launcher and thenGmail Gmail.

You’re now ready to set up Gmail as your business email for your domain (and, if you haven’t already, verify your domain).

To do this, you need to sign in to your domain host and direct the email for your domain to the G Suite servers. It’s like registering your new address with the post office when you move so that your mail gets delivered to the right place. We’ll walk you through the steps.

Before you begin

  • Verify that you own your domain.

    Or, you can verify now with an MX record. We’ll show you how while you're setting up the MX records.

  • Create user accounts in G Suite for your team.

    If your team members already use email with your domain (their email address ends with your domain), you have to create their user accounts in G Suite before you change any MX record settings. Otherwise, they won't be able to send or receive messages with their business address in Gmail.

Change your MX records to start using G Suite

Step 1: Sign in to your domain host
  1. Leave the Google Admin console setup instructions open.
  2. Open a new tab or browser window and go to the 123-reg site at www.123-reg.co.uk.

    Two browser windows are shown. Window 1 is for the domain host site, and window 2 is for the Google Setup Wizard.

  3. On the 123-reg site, click Control Panel at the top of the page.

    Control Panel button

  4. Enter the account username and password that you created when you purchased your domain from 123-reg, and click Log In.

    If you don’t know your account information, you can reset your password or contact 123-reg support.

    Log In button

Step 2: Go to the 123-reg domain settings
  1. In the 123-reg site, from the Your domains drop-down menu, select the domain you're updating MX records for, and then click Manage. In this example, we'll use yourcompany.com, but you'll see your domain there instead.

    Manage button

  2. Scroll down to the Advanced domain settings, and click Manage DNS.

    Manage DNS link

  3. Under Manage your DNS, click Advanced DNS.

    Advanced DNS tab

Step 3: Delete existing MX records
  1. In the DNS table, click Trashcan Icon next to any DNS records listed with the type of MX. Don't worry, you'll add new ones in the step below.
    Note: Do not delete any other type of DNS records (A, AAAA, CNAME, TXT, SPF, or SRV).

    Delete MX records

Step 4: Add new MX records

To direct your email to your G Suite account, you have to add new MX records to your domain. These are the records that you'll need to add:

MX server address Priority
Important: Some registrars require you to add a period after the .COM in the MX server address.
  1. From the Type drop-down menu, select MX.

    MX Type drop-down option

  2. In the Hostname field, enter @.

    MX Hostname field

  3. In the Priority field, enter 1.

    MX Priority field

  4. In the Destination MX field, enter ASPMX.L.GOOGLE.COM (including the period).

    Destination MX field

  5. Click Add.

    The DNS table will refresh and you'll see the new MX record listed.

  6. Repeat Steps 2-5, entering the remaining values (MX Server address) from the table above, and setting the Priority values respectively.

    All MX records added

    If you make a mistake after adding a record, you can edit it by clicking Edit icon.

    MX Records Edit link

  7. Skip this step if you already verified your domain by another method (such as TXT record, HTML file, or meta tag).

    If you need to verify your domain:

    1. In the Admin console, scroll to the Get your verification code section and click the Copy button.

      The MX records table is shown and a red circle highlights the Copy button next to the MX verification record.
    2. Paste the value in the Value/Answer/Destination/Target column.
    3. Make sure the record's priority is set to Low or to 15 or greater.
    Note: If your registrar rejects the verification code, try deleting the period at the end of .com.
Step 5: Tell Google to find your new MX records
  1. Open the Admin console. If necessary, click the link at the top of the page to continue setting up the Admin console.

    A red circle highlights the "Set up Admin Console. Click here to get started." option at the top of the Admin console.

  2. Navigate to the Activate Gmail page. 

  3. Scroll to the bottom of the page and click Activate Gmail.

    A red circle highlights the Activate Gmail button on the bottom right of the MX records table.

Congratulations! Your business email for your domain is now directed to the G Suite mail servers.


  • The records can take several hours to update, so you might not immediately get new email messages in Gmail. Until then, you'll continue to receive messages at your old email provider.
  • If you see the MX records setup validation in progress message in the Admin console for more than a few hours, make sure you entered the MX address records and priorities correctly in the DNS records stored with your host.
  • If you still need help changing your MX records, contact G Suite support.
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