title: A strange spam with a mistake in a word on my website
body: <p>I have an ads board. About one year ago I started to get a strange spam via ContactUs and SendMessage forms. Both forms have a CAPTCHA code. The IP addresses are very different: Asya, Africa, South America, North America, Europe ... ... The email address which is indicated has a real domain. The messages consist of one phrase and at least one word has an mistake. I'm getting about 10-30 messages during a day (not all-at-once) and all messages and IP addresses are different.
  Here are several samples (Name, email address, IP address, message):</p>
  
  <p>Lily, mlittman@cs.br, 188.143.232.12, Kewl you shluod come up with that. Excellent!</p>
  
  <p>Priya, helpdesk@earthlightsjewelry.com, 95.211.171.55, Deadly accurate answer. You've hit the blulseye!</p>
  
  <p>Surya, nsaussier@fightaidsmonaco.com, 83.133.110.36, I was really confused, and this answered all my qsuteions.</p>
  
  <p>Franklin, mariajames@tiscali.it, 189.2.186.102, Cheers pal. I do appcreatie the writing.</p>
  
  <p>Tomblok, oswapini@seznam.cz, 92.96.222.230, Pefrect answer! That really gets to the heart of it!</p>
  
  <p>Safdar, schuhmacher@nabu-hamburg.de, 188.143.232.12, People normally pay me for this and you are giinvg it away!</p>
  
  <p>Tony, groups@yankees.com, 83.133.110.36, What a pleasure to find someone who thinks through the isseus</p>
  
  <p>Rock, 20ramonrevilla@hotmail.com, 188.143.232.12, Thank God! Someone with brains spakes!</p>
  
  <p>Saya, claire@claireanderson.com, 83.133.110.36, </p>
  
  <p>Serginho, libr@stgvs.tpc.edu.tw, 98.216.34.115,I really apprceitae free, succinct, reliable data like this.</p>
  
  <p>What is this? Who is sending, a human or machines? Why? How? How to protect the forms? </p>
  
  <p>Thanks!</p>