Need free Captcha with formmail

Hello,

I have a cgi-bin formmail on my website. I would like to add a captcha verification code with it but everything I've seen are PHP driven which the form also need to be in PHP.

Can you please recommend some captcha FREE program that would work with formmail. I just want to receive less spam with our site formmail. Please let me know.

Thanks!

 

try
http://recaptcha.net
and
http://wiki.recaptcha.net/index.php/How_to_integrate_reCAPTCHA_with_javascript_PERL_and_formmail.cgi

 

thanks I will give this a try..

 

any other options, I am open to..

 

This might help > http://bumblebeeware.com/captcha/

if you need help in installing it let me knw..