Jason, you didn't answer my question in full. On another thread you said "the server validation server behavior that processes the the captcha input must be applied to the forms action page".
Is this true? If so, I shouldn't be trying your suggestion above but should be applying the server behaviours to formmail.php?
But when I try to apply the server validation behaviour to the formmail.php file, when I get to "Choose a variable to trigger validation", the Contact Form does not appear as an option to expand.
Please could you sort this out as there is conflicting advice here.