WordPress form to email

You can use FormDoc on WordPress without a form plugin: paste the HTML into a Custom HTML block.

Edit the page in the block editor and add a Custom HTML block.
Paste the form and replace YOUR_ACCESS_KEY with your key from app.formdoc.dev/new:

HTML

<form action="https://api.formdoc.dev/v1/submit" method="POST">
  <input type="hidden" name="access_key" value="YOUR_ACCESS_KEY">
  <label for="fd-name">Name</label>
  <input type="text" id="fd-name" name="name" required>
  <label for="fd-email">Email</label>
  <input type="email" id="fd-email" name="email" required>
  <label for="fd-message">Message</label>
  <textarea id="fd-message" name="message" required></textarea>
  <input type="checkbox" name="botcheck" style="display:none" tabindex="-1" autocomplete="off">
  <button type="submit">Send</button>
</form>

Publish the page and send yourself a test.

Your theme styles the form like any other content. On WordPress.com, whether you can add custom HTML depends on your plan.