[Plone] Form Controller

[Ro]

Help!

Using the CMFController actions, how do I POST the results of the
validated form to another site? I am trying to integrate my plone site
with salesforce.com so that leads automatically get created when users
fill out the contact me form.

This works - but no validation obviously:
<form
action="http://www.salesforce.com/servlet/servlet.WebToLead?encoding=UTF-8"
method="post">

This validates the form, but I am stumped on how to pass this on to
sales force as an success action (traversal_to the above absolute url
fails):
<form action=""
method="post"
tal:attributes="action template/getId">

Thanks
Ro