Abstract: A method is disclosed for providing a trace of mailing list expansion performed on an electronic message delivered to an electronic mailing list. The method comprises receiving an electronic message addressed to an electronic mailing list having a set of recipients; inserting an informational header line in a message header of the electronic message that is indicative of the electronic mailing list; and relaying the message for delivery to the set of recipients on the electronic mailing list.

Abstract: A data processing system for providing archiving of individual mail content while maintaining a single copy mail store can include a mail application enabled to maintain a single copy mail store, a primary data store configured for high data throughput and acting as a single copy mail store for the mail application, and a secondary data store configured for mass storage and having a lower data throughput than the primary data store. The system further can include at least one archive implementation of an archive interface, the archive interface defining an archive task and a restore task. In one aspect of the embodiment, the system can include each of a content table, a content map table and a restore queue. Furthermore, the system can include a map view of archived content for a specified user, the map view providing a user interface for activating the restore task.

Abstract: A method is disclosed for providing a trace of mailing list expansion performed on an electronic message delivered to an electronic mailing list. The method comprises receiving an electronic message addressed to an electronic mailing list having a set of recipients; inserting an informational header line in a message header of the electronic message that is indicative of the electronic mailing list; and relaying the message for delivery to the set of recipients on the electronic mailing list.

Abstract: A data processing system for providing archiving of individual mail content while maintaining a single copy mail store can include a mail application enabled to maintain a single copy mail store, a primary data store configured for high data throughput and acting as a single copy mail store for the mail application, and a secondary data store configured for mass storage and having a lower data throughput than the primary data store. The system further can include at least one archive implementation of an archive interface, the archive interface defining an archive task and a restore task. In one aspect of the embodiment, the system can include each of a content table, a content map table and a restore queue. Furthermore, the system can include a map view of archived content for a specified user, the map view providing a user interface for activating the restore task.