You had removed your jquery script from the page and that was causing javascript errors. Once I added it back I got the redirecting improperly message. Once I opened the success page I saw that it too sends an email and redirects to the success page, which was causing an infinite loop. I removed the email from the success page and the success page is now displayed.
Then I turned on email debugging and it says the smtp username or password is incorrect. Make sure they are set correctly and that the email address in the FROM line is authorized to send from that server.
Once you have it working you can remove the comment from line 48 so that it will redirect and you can delete line 38 to remove the debug code.
Did this help? Tips are appreciated...
