How to Authenticate your domain with MailerLite

Authenticating your domain with MailerLite helps improve your email deliverability and ensures that your marketing emails are sent securely on behalf of your domain.

This process involves adding a few DNS records (TXT and CNAME) to your domain’s DNS Management zone from your Client Area.

Step 1: Add Your Domain in MailerLite

1. Log in to your MailerLite account.

2. Navigate to Account Settings >> Domains >> click add domain

3. Enter the email address you wish to use to send emails from and click Save.

4. A popup will appear, prompting you to start the authentication process. Choose the option “Or manually authenticate your domain”

Step 2: Copy the Required DNS Records from MailerLite

MailerLite typically provides three DNS records for authentication — one TXT record for domain verification, a CNAME record for DKIM authentication, and one SPF record.

Step 3: Access the DNS Management Interfac

1. Log in to your Client Area.

2. Navigate to My Domains.

3. Locate the domain name you wish to manage.

4. Click on the three dots (⋮) next to the domain and select Manage Domain.

5. On the Domain Overview page, click DNS Management  from the available options..

You will be redirected to the DNS Zone Editor interface, where you can view and modify DNS records for your domain.

Step 4: Add the MailerLite DNS records

Click Add a Line to create a new record for each entry.

1. Add the MailerLite Verification TXT Record

Name/Host: Enter the domain name (example.com)

Type: Choose TXT the dropdown menu

Value: Enter the value of domain verification code

mailerlite-domain-verification=e1xxxxxx691a7xxxxxxxxxb82xxxxxx703xxxxxd

TTL : If you have a preferred TTL value, enter it. The system requires a TTL between 60 and 2,419,200 seconds

Example: 3600

2. Add the DKIM Record

Name/Host: Enter the value provided by Mailerlite followed by domain name

litesrv._domainkey.example.com

Type: CNAME

Value: litesrv._domainkey.mlsend.com

TTL : If you have a preferred TTL value, enter it. The system requires a TTL between 60 and 2,419,200 seconds

Example: 3600

3. Add the SPF Record

Name/Host: Enter the domain name (example.com)

Type: TXT

Value: v=spf1 include:_spf.mlsend.com ~all

TTL: Recommended: 3600 seconds

Note: Be sure to enter the complete subdomain name in the Name field when adding DNS records.(for example: litesrv._domainkey.example.com not just litesrv._domainkey ).

Step 5: Verify DNS Propagation

After adding the records, use a DNS checker tool to confirm that your DKIM and DMARC records have propagated.

This process can take anywhere from a few minutes to 24 hours depending on your DNS provider.

Step 6: Validate your domain in Mailerlite

Once the DNS records have fully propagated, head back to your MailerLite Domains tab and click on the Authenticate button for the domain you want to authenticate. If the authentication is successful, you’ll see an “Authenticated” label displayed next to your domain.

Updated on: 13/11/2025