I have been running Matt's FormMail.pl for a while now and it has worked fine.
But now it won't redirect to a thank you page or it won't use the internal thank you page. If I try redirecting, after submitting the form i get this in the browser: "Location: http://address_to_thankyou_page.html
" . If do not use redirect, I get the default "thank you" in the script - NOT as a html-page but as source code.
I'm on a 2003 Web Edition server with IIS 6 and Active Perl installed.