<captcha/>

With the help of Captcha, which is commonly unreadable for the robots, the spam is blocked so it can`t get into the database. The Captcha numbers image has a fixed background and a random number combination, that the user has to enter in the intended field.  

On some forms you have to enter the numbers you see in the specified field:

For more information see:

1. http://www.captcha.net/ 

2. http://en.wikipedia.org/wiki/Captcha

You should always put the captcha tag in the email form in order to have it working correctly.  In case there is no captcha, the users will not be able to send the emails.