TarProxy

March 1, 2003 - Posted by André Restivo- 2 Comments

href="http://www.martiansoftware.com/articles/spammerpain.html">TarProxy:
A fresh idea in the fight against spam.

Now we have moved identification of spam to the time of
its receipt. But how can the SMTP server best use this knowledge? I
propose that the running probability from the classifier be used to
throttle the connection with the offending server. If an incoming
message looks like spam [1], the connection could be slowed
dramatically, consuming the spammer’s resources and wasting their
time [2]. This would transform the server into a sort of dynamic
tarpit, in which the spamminess of the incoming message affects the
viscosity of the tar [3]. As the spam probability goes up, the
socket speed goes down [4].