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Squarespace step-by-step domain authentication

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This article is meant for those who already successfully registered a domain with Squarespace.

1. Head to the Account settings page and click the Domains tab.

2. Under Sending domains, click Add domain.

3. To verify that you are adding a domain that you own, enter an email address that includes your paid domain, which will be used to send campaigns. 

Do I need a website?

No, it is not necessary to have a website attached to your domain. However, you will need to have an email address that uses that domain and has an inbox that can relieve emails, as this will be ideal for sending.

If your domain is example.com, your email may look something like newsletter@example.com

Check your inbox for the verification email and follow the steps to verify the email address. 

Once the domain has been added, click Authenticate.

  1. A popup will appear, prompting you to start the authentication process. Click Continue.

This tool will scan your domain, and detect which provider is the host. 

2. Once the provider has been detected, follow the instructions to connect to your account. You will need to use your login credentials to log into your hosting provider.

What if I do not have the login details?

By choosing the option to Forward login to someone else, you can share a link with someone who has the details to log in, so they can complete this part of the process.

Or, you can choose Show added DNS records to manually view and add the records. Keep in mind, if you use a social login (such as Gmail) to login into your hosting provider, you will need to choose the manual authentication option, as this type of login is not supported.

3. Next, follow the steps to authorize MailerLite to configure your DNS and add the necessary records.

4. Once the DNS configuration is successful, you will be redirected back to MailerLite. Refresh the page to see the updated status of your domain.

The domain may show as authenticated right away, or it can take up to 24 hours. In this case, you will see Pending next to your domain. 

If you would rather authenticate manually, we've got you covered with manual domain authentication.

  1. Log in to the Squarespace dashboard and select a domain.

  2. Navigate to the domain settings page and click Edit DNS.

How to add the DKIM record

  1. Under Custom records, click Add record

  2. Select the type as CNAME. You will see the record type indicated in your account. 

  3. In the Host field, add litesrv._domainkey (leaving out your domain).

  4.  In the Data box, paste the DKIM Value text that is given to you in your MailerLite account.

  5. Click Save.

How to add the SPF record

  1. Within the same DNS page, click Add record again.

  2. Choose the TXT type for the SPF record.

  3. In the Host field, enter

  4. In the Data box, paste the SPF Value text that is given to you in your MailerLite account.

  5. Click Save. 

Head back to your MailerLite Domains page and click on the green Check DNS records button on the domain authentication window. Once both records are approved, your new domain will be displayed as Authenticated ✅.

🛠️ Need help? For solutions to common issues, check our guide Troubleshooting: Domain authentication.

Please note: If you have any questions, we encourage reaching out directly to the support team of your hosting provider for better assistance. In this case, Squarespace support page can be found here.

Don't know which version of MailerLite you're using? Click here to find out!

Interested in the New MailerLite? Visit the New vs Classic comparison page.

This article is meant for those who already successfully registered a domain with Squarespace.

How to add a domain to MailerLite

  1. Head to the Domains tab.2. Under Sending domains, click Add domain.

2. Under Sending domains, click Add domain.

3. To verify that you are adding a domain that you own, enter an email address that includes your paid domain, which will be used to send campaigns. 

4. Click Save.

5. Check your inbox for the verification email and follow the steps to verify the email address. 

6. Once the domain has been added, click on the Authenticate button. A window will appear containing Name and Value fields of your DKIM and SPF records. Keep this page open, so you can copy the field values later.

How to access the DNS zone page in Squarespace

  1. Log in to the Squarespace dashboard and select a domain.

  2. Navigate to the domain settings page and click Edit DNS.

How to add the DKIM record

  1. Under Custom records, click Add record

  2. Select the type as TXT. You will see the record type indicated in your account. 

  3. In the Host field, paste the DKIM Name from your MailerLite account and remove your domain name. 

  4. In the Data field, paste the DKIM value from your MailerLite account. 

  5. Click Save.

How to add the SPF record

  1. Within the same DNS page, click Add record again.

  2. Choose the TXT type for the SPF record.

  3. In the Host field, enter

  4. In the TXT Value box, paste the SPF Value from your MailerLite account.

  5. Click Save. 

Head back to your MailerLite Domains page and click on the green Check DNS records button on the domain authentication window. Once both records are approved, your new domain will be displayed as Authenticated ✅.

For troubleshooting steps, see our guide on how to verify, authenticate and align your domain.

If you have any questions, contact our friendly support team and we will gladly assist you.

Please note: While we’re happy to help with any issues taking place on our end, our expertise may be limited when it comes to third party apps since we cannot access your accounts with those tools, even if they are connected to your MailerLite account. This limits the support we can offer, so we encourage reaching out directly to the support team of those third-party tools for better assistance.


In this case, Squarespace support page can be found here.

Last time edited: Feb 29, 2024