Image Verification (CAPTCHA) is not yet supported by our Form Designer because we are still evaluating the value of providing it.
More and more people are complaining about having to use CAPTCHA on websites, and some CAPTCHAs (especially reCaptcha) are becoming almost impossible for normal humans to read!
We actually see using CAPTCHA as a last resort for a form.
FormMail has many powerful anti-spam features that don't interfere with your users.
Our Wizard let's you select many of these, and the most effective is simply blocking URLs from your forms (or limiting the number of them):