{$friend_name|htmlspecialchars},
I was on {$GlobalSiteName} today and thought you might be interested in this.
{$mail_body}
{$product.title|htmlspecialchars}
{$product.description}
{$product.price|price}
You can read more about {$product.title|htmlspecialchars} here :
{$product.url}
Sincerely,
{$user_name|htmlspecialchars}