Mastodon - HTML Subscribe Form

gistfile1.html

  <form action="http://www.mastodonmail.com/s/yourListKeyHere" method="post">
    <input type="hidden" name="mmSuccessUrl" value="yourWebSiteGoesHere" />
    <p><input name="mmName" type="text" placeholder="Name" /></p>
    <p><input name="mmEmail" type="email" placeholder="Email" required /></p>
    <p><button type="submit">Subscribe</button></p>
  </form>