Abstract: In order to filter out the dump emails, a new algorithm and Agent design for email filtrating are proposed. The Agent can learn from received email information and users operating habit with the algorithm, and confirm whether a new email is dump email or viruses email in order to filtrate it ultimately. The experiment shows the Agent can achieve 85％ correct ratio. An ameliorating method were presented for existed email system.

Key words: Agent, email classifying, email filtrating