Open Source Spam Filtering

Spam is an expensive problem for enterprises because it not only poses a threat to their internal computing environments but also requires a significant investment in filtering technology. With Information Technology (IT) constantly being pressured to decrease its expenses, there is a need to find a low-cost solution to the problem of spam. In this paper, the authors present an open source anti-spam filtering solution for enterprises, which provides all the core functionality that one would expect from a closed-source vendor but at a fraction of the cost. Furthermore, the open source solution is scalable and can process over a million e-mails per day without any degradation of e-mail delivery service.