Abstract: The present invention provides systems, methods, computer program products, and combinations and subcombinations thereof for filtering received messages. The invention includes a client system having filtering logic, a statistical classifier module, and a classifier database. The classifier module is automatically trained, without manual intervention, when the score generated by the classifier for a received message is inconsistent with a user-defined authoritative status indication. In addition, the classifier module is initialized using user-identified messages in a ratio representative of the ratio of non-spam to spam messages received by the user.

Abstract: A system, method and computer program product provide a search module for searching digital data. The search module operates, according to an embodiment, by indexing stored data without interrupting use of the stored data, synchronizing the indexed data with data stored subsequent to the indexing step, searching at least one of the synchronized data and the indexed data, and outputting results of the searching step.