Mailchimp

Step 1: Setup API Key

Step 2: Setup Form

This is code form:

<div class="ova-subscribe-form-wrapper ">
   <div class="ova-subscribe-form">
       <input type="email" name="email" placeholder="Enter your email" required />
       <button type="submit" value="">
          SUBSCRIBE
       </button>
   </div>
  
   <label>
      <input name="AGREE_TO_TERMS" type="checkbox" value="1" required="">
      I agree that my submitted data is being collected and stored.
   </label>
</div>


<p style="display:none;">
    <label>List choice</label>
    <label>
        <input type="checkbox" name="_mc4wp_lists[]" value="Ovatheme" checked="true"> <span>Ovatheme</span>
    </label>
</p>