Retrieve & Parse Email from Server

I need a procmail script that retrieves and parses contents of incoming email on the fly and sends the appropriate response (from a set of 4 .txt files) based on the contents of the incoming email. In other words, if an incoming email has the subject line "1", I want response file #1 ([login to view URL]) sent back to the "from" email. ## Deliverables Complete and fully-functional script. Complete copyrights to all work purchased. ## Platform Linux/Apache Web server