Abstract: Message matching methods for use in a message matching system are provided. The message matching system includes a first electronic device, a server and at least one second electronic device. The method includes the steps of: receiving, by the server, a first message from the first electronic device; finding, by the server, at least one second message corresponding to the first message from a database based on the content of the first message; determining, by the server, whether the at least one second message matches the first message; and if so, transmitting, by the server, the at least one second message to the first electronic device and the first message to a second electronic device corresponding to the at least one second message respectively, wherein the second message has content corresponding to that of the first message and is sent by an unknown source.