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:
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 Check DNS Records
Click Manual again to bring up the DNS records
and let's get to adding!
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!