Spam war: Battling ham against spam

The antispam battlefield is in a complete chaos. The public has become more and more aware of the negative effects of junk mails. The voice against spam has become ever increasing; however, the amount of junk mails that find their way to mail inbox keeps increasing at a quicker pace. Unfortunately, the war against spam is much more complicated and requires multi-solutions. It requires multi-solutions because there is no single definition of spam. Mails that are legitimate to one might be spam to other. Some mails are vague in nature, which can be classified either as ham or spam. So to fight spam successfully, it is not only necessary to stop most of spam without blocking hams, but also be able to take care of the personal habits and preferences. In this paper a research-based analysis of spam is presented with focus on to the technical analysis of various weapons used in spam war and their leverages on the system.