The Spam blocker class can be used to check
spammers' IP addresses in the Project Honey Pot
RBL (Realtime Black List). It can perform a query
to the Project Honey Pot RBL DNS server for a
given IP address using your RBL API key. The class
analyzes the RBL response and sets a session
variable if the current user IP address is of a
spammer that should be blocked. The blocked and
allowed addresses are logged to files or to tables
in a MySQL database.
