1. A method comprising: receiving a message including a plurality of information elements, at least one of the plurality of information elements having message information and belonging to at least one of a plurality of predefined classes of information elements; selecting at least one of the plurality of information elements belonging to a predefined class corresponding to a target class, the target class including classes of information elements selected for removal; and removing any message information in the message corresponding to the selected information elements to provide a filtered message for transmission.