title: Django/Python: email reply is updated to site
body: <p>The Django site I'm working on at the moment sends out emails when content is updated.</p>
  
  <p>A feature I would like to add is where users can reply to these mails, ie comment on a topic. This reply then appears updated on the page.</p>
  
  <p>What would be a good approach to tackle this? Are there any modules out there that can be dropped in?</p>