Tell A Friend PHP Script

With this PHP Tell A Friend Script you are able to let visitors recommend your
website. Both HTML layout and e-mail layout are template driven and
customizable. Includes several security features to prevent abuse by
spammers.
Demo

Features
include: Processing form data and send it per e-mail; Full customizable website
layout by templates; Full customizable mail content by templates; E-mail message
logging feature; Security features against abuse by spammers. Can only be called
from a site that has been added to a white list of referring sites.