title: Postfix header checks multiple actions
body: <p>I want to make a header check rule to add a reply-to and change From to a no-reply.
  I use it for sort of diffusion list adress</p>
  
  <p>I have tried this regexp code but it is not working:</p>
  
  <pre><code>if !/^From:(.+@myserver\.fr)/
  /^From:(.*)$/ PREPEND Reply-To:$1
  /^From:(.*)$/ REPLACE From: no-reply@myserver.fr
  endif
  </code></pre>
  
  <p>Only the first action is use.</p>
  
  <p>Can someone explain me what I am doing wrong?</p>