From wikipedia:
CAPTCHA: (an initialism for "Completely Automated Public Turing test to tell Computers and Humans Apart") is a type of challenge-response test used in computing to determine whether or not the user is human. A common type of CAPTCHA requires that the user type the letters of a distorted image, sometimes with the addition of an obscured sequence of letters or digits that appears on the screen. CAPTCHAs are used to prevent bots from performing actions which might be used to make a profit on the part of the person running a bot.

There is many project aiming to defeat CAPTCHA using OCR or other AI algorithm: AiCaptcha, Breaking visual CAPTCHA. Some spammers also uses social engineering (manipulate people): solving and creating captchas with free porn.

After reading pwntcha, it's seems really easy to pass through CAPTCHA, but do spam bots really use this kinds of advanced solutions to get email adresses or post comments on blogs ? I didn't find any test on the web. That's why I want to test spam bots that come here. I specially created the following email addresses and I'm hoping spam bots will try to send me emails:

  1. email: ceresistan@biais.org
  2. email: recetansis@biais.org
  3. email:
  4. email:
  5. email:
  6. email:

Note: each address use the same set of characters and aren't in my english dictionnary. All addresses are neither used nor published elsewhere. I also created a "not yet" published address to testify the results. I will post my results when size of mailboxes become significant.

Now, it's time to invoke spam bots. Come on, suck this page, use your regexp, algorithm and send me viagra ads ! I hope to receive a least one mail in the first mailbox ;)