12. A method for processing electronic-mail messages, the method comprising: receiving a message sent over a communication network, the message including a collection of words, wherein the collection of words is not helpful for the purpose of distinguishing the message, the collection of words including a plurality of words that can be found in a dictionary; and executing instructions stored in memory, wherein execution of the instructions by a processor: identifies from the collection of words one or more dictionary words known to be commonly occurring or known to be associated with spam, and removes the identified one or more dictionary words from the message to generate a resulting summary, classifies the message based on at least the resulting summary, and processes the message based on at least the classification of the message.
12. A method for processing electronic-mail messages, the method comprising: receiving a message sent over a communication network, the message including a collection of words, wherein the collection of words is not helpful for the purpose of distinguishing the message, the collection of words including a plurality of words that can be found in a dictionary; and executing instructions stored in memory, wherein execution of the instructions by a processor: identifies from the collection of words one or more dictionary words known to be commonly occurring or known to be associated with spam, and removes the identified one or more dictionary words from the message to generate a resulting summary, classifies the message based on at least the resulting summary, and processes the message based on at least the classification of the message. 14. The method of claim 12 , wherein classifying the message comprises determining whether the message is an unsolicited message.