PHP or PERL script to process mail attachment

We are in need of someone who can write a PHP or PERL script to process incoming mails for a particular mail account on our freeBSD web server. The script will need to do the following: -Check for new mails for a particular mail account -Take a file attached to the new mail and place it in a particular directory -Delete the mail the file was attached to or, move it somewhere so it isn’t processed more than once.