We don't offer a script generator but we do have a tool that will let you craft an email message to be sent from a form posting or many other actions that can occur on your site. The tool is Universal Email, combined with CSS Form Builder you can create a form that mails the entered values to the desired recipient. We also offer the Contact Form Solution Pack, this is a pre-build app that has a form to fill out and it will mail the contents of the form to whomever you specify. Here are some links to the product pages for these items:
Contact Form Solution Pack
If you have any questions about either of these or experience any problems let us know.