Mailchimp is where ChimpMatic started, and it is still the deepest integration. You connect Contact Form 7 to Mailchimp with one-click OAuth or an API key. Then you pick an audience, map merge fields, and choose single or double opt-in for each form.
What the Mailchimp integration needs
- A WordPress site with Contact Form 7 active
- ChimpMatic Lite, which is free
- A Mailchimp account with at least one audience
Connect Contact Form 7 to Mailchimp
- In WordPress, edit the form under Contact → Contact Forms.
- Next, open the Chimpmatic tab and choose Mailchimp.
- Then connect with one-click OAuth, or paste an API key from Account & billing → Extras → API keys.
- Finally, select the audience that new subscribers should join.
Map Mailchimp merge fields and set opt-in
First, map your form’s fields to audience merge fields such as FNAME and LNAME. The email is required, and Lite maps it plus up to four more fields. After that, choose single or double opt-in for this form. With double opt-in, the subscriber gets a confirmation email before joining. The field mapping and double opt-in guides cover both steps in detail.
Test your Mailchimp integration
- First, save the form and submit a test entry.
- Then open the audience and check that the contact arrived with its merge fields filled.
- If you chose double opt-in, confirm through the email and check the contact’s status again.
Go deeper
The complete walkthrough, with screenshots, tags and troubleshooting, lives in the help center. For audience field details, also see audience fields and merge tags.
FAQ
Should the Mailchimp integration use OAuth or an API key?
Both work. OAuth takes one click and never shows a key. An API key, however, is handy when the account owner is not the person who sets up WordPress.
Can different forms feed different audiences?
Yes. Each form’s Chimpmatic tab selects its own audience, tags and opt-in setting, so one site can feed several audiences.
Does Lite really do all this for free?
Yes. Meanwhile, Pro adds advanced provider features, expanded field mapping, advanced consent controls, subscriber tools and priority support.
Also available: Brevo, MailerLite, Klaviyo, Campaign Monitor, GetResponse, EmailOctopus and Moosend, or see all integrations.