Piping Incoming Subdomain Email to a PHP script - repost

I have a domain name registered with godaddy and cloud server. I need a help from freelancer to configure exim4 on that server and zone records for that domain such a way, that all email sent to sub-domain address like "abcdefg@abc,ехамрlе,сом" would be piped to PHP script placed on the server and PHP code will save all attachments of incoming emails in the predefined folder. I will create 2 milestone payment equal value and will only release first when desired results are demonstrated and second when I will be able to replicate same success on another server myself. You can use these instructions [login to view URL] or other. You bid must contain URL of similar project you have done before in freelancer.