To connect your MailerLite account, you will need the following:
An MailerLite API key.
You can find below the steps to connect to your MailerLite account:
Log in to your MailerLite account.
Click on the Integration link from the left Sidebar.
Click on the Use button for the API option.
Click on the Generate new token button.
Set a name for the new token, check the Term of Use checkbox, and click the Create Token button.
Connect MailerLite with Divi's Email Opt-in module
Open the Email Opt-in module Settings modal window.
Go to the Content Tab → Email Account.
Select the MailerLite from the provider's list.
Click on the Add button.
Fill in the following fields:
Name - It can be anything you want. For example, you can use
my-mailer
API Key - Paste the MailerLite API key.
Click on the Submit button.
Choose the MailerLite list you want to use.