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Barracuda Email Gateway Defense
formerly Email Security
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How to Configure MX Records to Direct Mail Flow to Barracuda

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Note that this article refers to the redesigned, updated administrator user interface in Email Gateway Defense made available to customers over the course of 2024-2025.

Add each domain that you want Email Gateway Defense to filter email for on the Domains Manager page. Each of the domains must be verified by Email Gateway Defense for proof of ownership.

MX records direct your email traffic and are stored by your domain's DNS provider. Before you can use Email Gateway Defense, you must modify your domain's MX records to point to Barracuda Networks mail servers. 


Notes

You must modify all your MX records to point to Barracuda Networks mail servers. Any MX records that point to a server other than Barracuda Networks' can interfere with Barracuda Networks' ability to protect your domain(s) from threats and spam.

After verifying your domain, any mail sent to your domain from another Barracuda Email Gateway Defense customer will be processed normally by your Email Gateway Defense account and not delivered via MX records.


Follow this article on how to add the Email Gateway Defense MX records through your DNS hosting provider.

  1. Click a domain name to expand the domain details and copy down the MX Records Configuration.
    egd_configureMX.png
  2. Log into your domain's DNS hosting account. DNS providers include companies such as GoDaddy and Enom.
  3. Locate the page for updating your domain's DNS records. Instructions for your DNS hosting provider will vary; you can use search terms such as add, edit, manage, or MX records.
  4. Replace the existing MX records with the ones from Email Gateway Defense MX records from Step 1.

  5. Save your changes and wait for the new settings to take effect.

    After updating your MX records, allow at least 24-48 hours to allow time for your changes to propagate.


  6. Repeat these steps for all of your domains. It is essential for threat and spam prevention that you follow these steps for all of your domains.
  7. Verify that the new Email Gateway Defense MX records have been added by going to the Domains Manager page and checking the status of the domain name.