Looking for correlation between SPAM and visits on your websites

In this paper, a system implemented in a web server for searching website crawlers which create a database of email addresses for spamming is presented. For every visitor the system generates fake and unique email addresses with hidden and stored data, serves them to the Internet, and waits for response. On the basis of the correlation between the email address used for spamming and information assigned to this address, the system points IP addresses which work for the "bad systems". This information can be used in further security systems as firewalls, intrusion detections systems (IDS) and intrusion prevention systems (IPS). A light version of the system which can be used by any administrator of the dynamic website is also presented.