To test your Mailchimp setup, first enter your Mailchimp API key.
Then visit your Join Now form on the front end of your site. The Mailchimp opt-in will be automatically added to your form so new members can join your mailing list during the signup process.
Complete the Join Now form with a test business and test email. Once you have submitted the Join Now form, login to your Mailchimp account to make sure your email has been added to your Mailchimp mailing list.
If you have double opt-in activated on your Mailchimp account, be sure to use an email address that you have access to so you can review the entire process. Your email will not be added to your Mailchimp list until you have confirmed via the double opt-in process.