Abstract： This article recreates the message system's history from its birth to the present in a narrative form based on a thread of the development of the Internet. Since 1983, message systems have experienced different historical tough times. Their use modes, function features, product forms and application scenarios have changed a lot. The author chose five representative products from different eras and described the historical background of their generation. Focusing on the core problems that had been solved, the author attempted to analyze the key factors of their success. Finally, the author made three predictions about the serverless era and pointed out the core sore points of the current messaging system in tackling the serverless scenarios, and concluded the key capabilities of future messaging products.
