Start by logging into Mailerlite: https://accounts.mailerlite.com/

You may be asked initially which version of Mailerlite, choose New Version.

Now click this link: https://dashboard.mailerlite.com/configuration/domains

Click Add domain and enter in your domain email:

After you Save check your email for the verification link:

After doing so, we will have completed step 1.

Now we click Authenticate underneath Authentication

You may get 2 options on the next popup, please select Manual

Please leave this window up and open https://wpo.bigscoots.com/user/sites/details

Select your domain and click the DNS tab

Now we can can and paste our DNS records from Mailerlite to the WPO Portal:

For example:

After you add both records click Check DNS Records in which you should now see Authenticated!

Two down, one to go!

Now click Add custom domain

Enter in any custom subdomain but if unsure just use: mailerlite.YOURDOMAIN.com
Please ensure to replace YOURDOMAIN with your actual domain!

Click Add

Click Check DNS Records

Click Manual again to bring up the DNS records

and let's get to adding!

Example

Once all records are added, click Check DNS Records

You will be brought back, now click the toggle next to Domain Alignment

Lastly, click Confirm Enable to finish up!

Congratulations, you are all setup with Mailerlite!