A processor 104 executes computer-executable instructions to receive messages 302; store 304 the received messages in a foreground memory 108; process 306 the stored messages in the foreground memory 108; send 306 the processed messages; move 308 the sent messages to a background memory 110; evaluate 310, 312 the messages in the background memory with respect to a parameter; and delete 314 selected messages in the background memory as a function of the evaluating. Alternatively, a message queue may be used to track lost messages.