Terminal, message distribution system, message distribution method, and message reception program

Provided are a terminal, a message distribution system, a message distribution method, and a message reception program, with which push messages from a push server can be delivered to a terminal reliably regardless of the type of network used by the terminal, while reducing the processing load of the push server. The present invention is equipped with: a network status detection unit (11) that detects the status of a network connecting a terminal and a distribution device that performs push-type message distribution; and a reception unit (12), which determines whether the terminal and the distribution device are located in the same IP address space on the basis of the detection result and which, when the terminal and the distribution device are not located in the same IP address space, selects a first communication method that uses a pre-established TCP session, and, when the terminal and the distribution device are located in the same IP address space, selects a second communication method that uses a TCP session that is newly established between the distribution device and the terminal when a message is distributed, in order to receive a message from the distribution device.