Intent-Based Filtering represents a true technological breakthrough in the proper identification of unwanted junk email, or “Spam”. To date, spam-filtering techniques have fallen into several categories: blacklists, rules and heuristics, or more recently, Bayesian filters and signature technologies.
However, none of these existing techniques has done an adequate job of solving the Spam problem. For that reason, the adoption of these technologies has been limited and the results mixed. Strong predictions have been made for the future market growth of spam filtering, but still these predictions are based on the limited nature of existing solutions.
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