Without getting verbose. We have three forms, a contact form, a membership form, and a quick newsletter sign-up/email capture form. The email capture form is where we want the email to be auto generated upon clicking the submit button and submitting a users data (first name, last name, email address). We have a specific email that goes to the user and do not want it to be used by the other two forms.
I know the plug in has no ability to do this, other than a standard message for all three with a button for the user to ask for an email confirmation.
I guess i am becoming verbose. I know the data goes directly to sales force, so the email address would have to be captured upon the submit and send the email to the user before it gets to sales force. At least that is the way I worked it out.