Jason,
I understand what you're saying but please take a look at this one, same issue!
http://paoloresteghini.co.uk/book-appraisal
Email comes through however but I get this:
Warning: Cannot modify header information - headers already sent by (output started at /home/jordansh/public_html/book-appraisal.php:1) in /home/jordansh/public_html/book-appraisal.php on line 86
Line 86:
header("Location: ".$GoToPage);