Share this product by email button
This simple tweak lets you create a button that when pressed uses the standard HTML mailto:
along with a query string to trigger a local email client to pre-fill a related email in order to send that product to someone else.
Coding instructions
<a href="mailto:?subject=[%url_encode%]Take a look at [@model@][%/url_encode%]&body=[%url_encode%]I thought you'd like this product ([@model@]) on [@config:website_bname@][%/url_encode%]">Email to friend!</a>