Looking to prevent the amount of spam that one of my clients was receiving, I investigated how to install a CAPTCHA utility on a Joomla contact form. You can see it in action at Ryan Gibbons Real Estate After looking at a few Joomla extensions, I settled on a solution called " Captcha Plugin for Joomla! " (yes, a creative name), a simple yet effective plug-in created by JoomlaXi . You need to register to download the extension from the JoomlaXi page , but it's free.
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