well, this confused me:
"require additional code so the 1.respondent automatically receives an 2.email with a message".

1. respondent: the person who filled in the form or the email address the form is being sent to?
2. 'an email with a message': don't need to explain that one!

If you want help, be very very clear. or people switch off when reading your post and move on to the next thread. Long sentences are hard to follow, so instead of...

...I require additional code so the respondent automatically receives an email with a message (their email address appears in a field on the form)...

I would have done this...

A fills the form and submits it
the contents are sent as an email to B
I want A to receive an automatic confirmation saying:
"Hi A, got your message, thanks!!!!!!!!"

But never mind! perhaps I was just being slow and the important thing is that you've got it working...