Mailchimp or any 3rd party email marketing service integration

Hi Chris,

I would like to know if it’ll be possible to integrate this plugin with mailchimp or any other email marketing plugin.
Actually i need to integrate form with subscription mail. I did check the plugins inbuilt mail sending setting . But i need to integrate it with mailchimp for subscription only if user marks a checkbox

Any help would be appreciated . Thanks in advance

Siddhesh