PGP Universal Keyserver - Verified Directory CAPTCHA Settings

Hello,

I have set up the verified directory for public access to the public keys in the PGP Universal Keyserver. For each search the web interface asks the user to complete a CAPTCHA step, is there a place where I could change the setting for the CAPTCHA? is there a way to remove the CAPTCHA step all together or replace it with a username/password authentication?

Thanks for the help,

D