Abstract: According to some embodiments of the present invention, email may be managed in a client-server environment by associating an address list with an email at a server. An identifier may be generated that can be used to retrieve the address list associated with the email at the server. The identifier may be encoded to generate a local part of a truncated address list. The identifier may be encoded to generate a domain part of the truncated address list. The address list in the email may be replaced with the truncated address list that comprises the local part and the domain part.

Abstract: A system and method for synchronizing data items in a data processing system. In one embodiment, the method includes receiving a synchronization request that specifies a set of data items that are subject to synchronization. The set of data items subject to synchronization are identified from the synchronization request and a synchronization cycle of the identified set of data items is commenced. The synchronization cycle includes a step of processing meta-information associated with the identified set of data items. Synchronization filter parameters are determined from the processed meta-information and the data items to be synchronized are selected in accordance with the determined synchronization filter parameters.