Setting Up a Dedicated Sending Domain

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Overview

Setting up a dedicated sending domain authenticates your sending infrastructure so that, when emails reach inbox providers (e.g., Gmail, Yahoo, Microsoft, etc.), they will appear to come from your brand, rather than from the Klaviyo shared domain. There are several reasons you may want to have a dedicated sending domain, including to have greater control over your business’s branding and sending reputation. In this article, you will learn more about how Klaviyo’s self-service domain authentication tool works to accomplish this task.

What Is a Dedicated Sending Domain?

The process of setting up a dedicated sending domain improves deliverability in the eyes of inbox providers since you will now send from your own designated domain. As such, your from address will match the domain you’re sending from. This means that your emails will no longer appear to be sent by a shared domain.

For example, in the image below, the “via klaviyomail.com” will no longer appear after they have set up their own domain.

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The steps you will take to create a dedicated sending domain, are:

  • Navigate to Domain Authentication
  • Generate DNS Records
  • Update DNS Records (not within Klaviyo)
  • Verify Your Domain
  • Apply Your Domain
  • Warm Your Sending Infrastructure

Navigate to Domain Authentication

In the top right corner of the Klaviyo dashboard, click on your company name to expand a dropdown. Select Account.

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On your Account page, select the Settings dropdown. Then, choose Domain Authentication from the main tab.

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To begin, select Get Started.

Please note that, while this selection is available to all users, only those with Owner, Admin, Manager, and Campaign Coordinator privileges can make changes.

Generate DNS Records

The next step is to generate Domain Name System (DNS) Records. After navigating to the Domain Authentication page, you will see text boxes titled Root Domain and Sending Domain.

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Root Domain

Your root domain is the domain that you want your emails to be sent from. For example, if your company is called Hello World, your sender domain will be: helloworld.com.

Sending Domain

Your sending domain is the domain that your emails are sent from and will appear in the email header. In the box labeled Sending Domain, specify an arbitrary subdomain (prefix) from which your emails will be sent.

Please note that you can only use a particular subdomain only once within the DNS. The “send” subdomain that is present as a suggestion is the most common prefix for dedicated sending domains that we recommend because it is typically unused by another service within our customers' DNSs. That being said, you can choose any prefix (subdomain) that is not already in use that best fits your brand. For example, send.helloworld.com or emails.helloworld.com would both be valid sending domains.

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Once both of these fields are ready, select Continue.

There is a limit of 10 record requests per company for each rolling 30 day period. Also, once records are generated, the Root Domain and Sending Domain fields will become uneditable.

Note that multiple companies can use a given sending domain, as long as all relevant DNS records are found upon verification. For example, if you manage multiple accounts for different global stores of the same brand, such as a US and UK account, you could use the same dedicated sending domain for both of them.

When you generate records for a given sending domain, there will be an output of TXT and CNAME records, which will look similar to those shown below:

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After these records are generated, hover over and click the text to copy these records to your clipboard.

You will then need to implement the copied values into your DNS records with your DNS provider in order to successfully verify your domain.

If your DNS provider does not accept the "@" symbol during this process, head to our FAQ on troubleshooting.

Update Your DNS Records

This step of the process requires you to complete tasks outside of your Klaviyo account. Go to your company’s DNS provider’s platform, or consult your IT team on next steps. Apply your new DNS records that were generated in Klaviyo to your domain.

The process of editing your DNS records will depend on which domain provider you are using. We've compiled links to documentation for some common providers here:

Not all domain registration services allow you to directly edit all DNS records. If you cannot update the records below, contact your DNS provider for information on how to update these records.

Verify Your Domain

After you confirm that your DNS records are updated and apply them via your DNS provider, it is time to verify your domain.

Click Continue to Verify Domain.

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There is also an option to Cancel Dedicated Domain Setup. This allows you to return to your previous domain state (with your prior root and sending domains prefilled) if you decide not to proceed.

You will also be notified if your account has scheduled or current sending that will impact your deliverability. Campaigns are considered to be ‘conflicting’ if the estimated recipient count of a given sending or scheduled campaign at the time of page load exceeds 40% of your account’s emailable profiles, and is greater than 100,000 recipients.

If your records are valid, a success message will appear; if they are not, you will see an error.

Apply Your Domain

If your domain is successfully verified, your page will update to the final step of the process. You will see two final options: Apply Domain and Cancel Dedicated Domain Setup.

To apply your domain, select Apply Domain.

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A popup will appear, verifying your choice to apply the domain. You check a box indicating that you understand that you must warm your infrastructure by changing your sending behavior.

If your sending goals do not permit this initial warming period, please consider moving to a dedicated sending domain at another time.

If you agree and wish to continue, click Apply Domain.

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Klaviyo will now apply your dedicated sending domain to your account, and produce a success message when completed. If for some reason the domain cannot be applied, an error message will appear instead, directing you to try again. If the problem persists, reach out to a member of our Support Team for further assistance.

After you have set up your domain, when you return to the Domain Authentication page, you will see these changes in place. You will also see the date on which these changes took place, and instructions on how to warm your sending infrastructure in the next 2-4 weeks.

Warm Your Sending Infrastructure

It is essential to limit email sending in the first 2-4 weeks after setting up your dedicated sending domain; this process of limiting sending to only your most engaged subscribers is called warming. Warming your domain causes inbox providers to see you as a "good" sender and strengthens your sending reputation.

The basic process of warming is:

For more information on each step of the warming process, head to our article on warming your sending infrastructure.

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