title: How can I send email from frontend website without having to expose API Key?
body: <p>I got a server from OVH and downloaded a template from html5up.
  I then uploaded the template to the server : <a href="https://i.stack.imgur.com/A3xCI.png" rel="nofollow noreferrer">root schema</a></p>
  <p>The thing is, I now want to send emails with a form that is on one of the html page.</p>
  <p>The template has no backend, so I don't have any code where I can store API keys, or hide method that would call API to send email for me.
  I found a solution that made me write an ajax call from the JS directly to the API Rest, but the API Key would be visible.</p>
  <p>How could I proceed ? Am I forced to write a backend ? Can I just add a java file, or a php file that would call an API ?</p>
  <p>Thank you for your time !</p>