The recognition and filtering out of unwanted messages in technical communications media presents an ever more difficult challenge. The best-known of these problems is with ubiquitous e-mail. Most email sent is unwanted spams. In order to protect the recipient the most diverse applications must be used. Longer observations have shown that spam is continually adapted and is able to overcome the most up-to-date recognition programs. In the future the most widely different communication methods are growing together such as e-mail, telephony and others, so that soon they will be able to speak of unified communication.