Abstract: The present invention protects local services from Denial of Service (DoS) attacks based on network paths or sub-paths used to transfer data between a local service and remote clients. As requests for connections to the local services are received, the network sub-paths corresponding to the requests can be retrieved by a tracing process and/or from a database. Connections or other requests with similar or common network sub-paths are also determined. Based on the number of connections and/or requests with similar or common network sub-paths, the connections and/or requests can be throttled. For example, if the number of connections and/or requests with similar or common network sub-paths exceeds a predetermined threshold, then the connections may be disconnected or requests rejected or delayed for processing.

Abstract: The present invention extends to methods, systems, and computer program products for e-mail envelope journaling. A server determines that an entity's (e.g., a recipient revealed form an expanded distribution list) home mailbox store has envelope journaling enabled and specifies a journaling mailbox address. The server sets a journaling property in an e-mail message identifying that the e-mail message is to be journaled. The server adds the journaling mailbox address specified by the entity's home mailbox store to the journaling property. The server sends envelope journaling information through an envelope protocol extension to the journaling mailbox addresses specified in the journaling property. The server sends the e-mail message to one or more recipients specified in the e-mail message and journaling mailbox addresses specified in the journaling property.