title: Process incoming emails with script
body: <p>Remember iwantsandy.com? It was quite popular for what it did. ANyways, I'm looking to do something similar, but my question is, how does one process incoming emails? Let's assuming I'm using PHP or maybe even Ruby to do this. I would need a way to process the emails and dump them into a DB or something. Ok fine, but my main question is getting a script to kick off when an email comes in.</p>
  
  <p>I have a VPS so I have full control over my environment and it's running Centos.</p>