To connect your iContact account, you will need the following:
An iContact App ID
An iContact Username
An iContact App Password
Get the required Data
Log in to your iContact account
Click on your Profile link and choose Settings and Billings
Click on the iContact Integrations option.
Enable the WordPress Plugin option.
Take note of the following details:
Application ID
Username/Email Address
Password
Connect iContact 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 iContact 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-icontactApp ID - The ID from the previous steps (above)
Username - The username used to log in to your iContact account
App Password - The password used when creating the iContact App.
Click on the Submit button.
Choose the iContact list you want to use.