Email Checker

You have an email checker on your registration page and I love it.
This is exactly what I could use on my Joomla contact forms to combat unscrupulous marketers.
I have looked for a plugin that is simple and straightforward as yours, but I've come up empty.
Would you have any suggestions on how I can acquire such a nugget?

Our registration page is just CB and the email field is just CBs email field. This can't be used outside of CB at this time. With CB 3.x we'll be converting our fields into Joomla fields, but until then I don't have any suggestions regarding Joomlas contact form. You'd need an integration specifically for Joomla contact form to modify it. There's a few options available within Components > Contact > Options under the Form tab that might help you.