The default email template for the Drupal Webform module will send out the date the form was submitted, the name of the person submitting the form (if they were logged in to the site) or their IP address, the value of each field in the form submission and a URL to a page on the site where the form submission can be viewed or edited. This information is usually sufficient, but you might want to have different fields sent to different people when the form is submitted, or provide a custom message to the person who submitted the form, like a “thank you” note.

To do this, you need to use the Custom Template feature of the module. I’ve put together a guide on using this feature which is available in the Drupal documentation section of the LIS Wiki. If you have any quesetions, please let me know so that we can update the documentation.