10. The method of claim 7 , further comprising: receiving a plurality of messages on one or more servers; parsing the plurality of messages; identifying features from the plurality of messages; selecting a plurality of common classification category semantics; matching at least some of the identified features with the respective plurality of common classification category semantics; identifying messages corresponding to the at least some of the identified features; and generating a classification category to message map.
11. The method of claim 10 , further comprising: selecting a plurality common classification category semantics; identifying at least some of the plurality of messages having features matching the plurality of common classification category semantics; dividing the identifying at least some of the plurality of messages into respective clusters of messages each having a unique common classification category semantic; reviewing features from messages in the respective clusters; and revising the classification rule.