The present invention provides a codec capability negotiation method and terminal thereof. These mechanisms and methods can enable embodiments to propagate changes from a first application instance in a first environment to a second application instance in a second environment. In accordance with the invention, the paper or board to be printed is equipped with an inner coating layer containing electrically chargeable ethene acrylate copolymer, such as ethene methyl acrylate copolymer, and with a polyolefin-based outer shield layer on top of this, which contains e. The recipient client further presents the message data to the second user when the second user performs a predetermined action, such as submitting authentication information or requesting the message data, to receive the message data.