DKIM uses cryptographic signatures and public-key infrastructure to verify that an email message has not been altered during transit and that it truly came from the claimed sender. Email senders can use DKIM to sign their messages by adding a DKIM-Signature header field to the messages. Email receivers can then use the public key published in the DNS to verify the signature and check that the message has not been tampered with. 

How to Set up DKIM Record for Mailerlite

It is quite simple to configure DKIM with Mailerlite for your custom domain. All that is required is:

• Go to your Mailerlite account and log in.
• Add your domain name by clicking “Authenticate.”
• Next, select “Show DNS record.”
• Mailerlite will provide the required DKIM record for your domain, which you will then need to add to your DNS.

You can use Skysnag’s free DKIM Checker to check the health of your DKIM record here

Enable DMARC for your domains to protect against spoofing. Sign up for a free trial today!

For more information on Mailerlite DKIM setup, you can refer to their reference documentation