We offer the Mailchimp Pro extension as an optional add-on for an additional $18/month on top of your normal MoonClerk monthly charge. You can see our normal monthly charges on our pricing page. 

If you enable the Mailchimp Pro extension after you've activated your account, you’ll see an additional $18 charge on your next invoice. 

If you enable the Mailchimp Pro extension before you activate your account, we add the full $18 charge to your first invoice. 

You can remove the extension at any time.