CAPTCHA: Telling Humans and Computers Apart Automatically
A CAPTCHA is a program that protects websites against bots by generating and grading tests that humans can pass but current computer programs cannot. For example, humans can read distorted text as the one shown below, but current computer programs can't.
If you are not using Captcha on your websites forms it makes it much easier for hackers and robots to hijack your forms and use them to send out large amounts of spam. If we find your domain is sending out spam like this we may be forced to block all messages coming from it. You can get a free Captcha to use on your web forms at the following link.
Learn more about Captcha HERE