An outgoing message composed on a mobile wireless communication device may be recognized as including a Short Messaging Service (SMS) destination address in an addressing field. The outgoing message may then be processed to create a SMS message payload. The SMS message payload may then be passed to a SMS client application executed on the wireless communication device with an indication of the SMS destination address so that the SMS client application may form an SMS message based on the SMS message payload and the indication of the SMS destination address.