Subscribe to MailChimp using a Contact Form 7 form.
The features available include:
- 1-click MailChimp sign-up for Contact Form 7 forms
- Complete control over form fields – send anything you like to MailChimp
- Show sign-up forms in posts or pages using the form shortcode, or in sidebar or footer using the MailChimp widget
- Redirect users to a “thank you” page after subscribing to a MailChimp list.
You can also add simple checkbox which encourages people to subscribe on any form on your site.
- MailChimp for WordPress
- How-To Article: Setup MailChimp for WordPress
- How to integrate Mailchimp with WordPress (Video)
Website – MailChimp for WordPress