1. A method for controlling access to categorized messages, the method comprising: categorizing an electronic message into a number of categories according to a message objective, the message objective informing user association, message association, and message access rules for each of the number of categories, wherein each category comprises a number of electronic messages, a number of message objectives, and a number of users associated with the category; determining, based on the message objective, a number of users allowed access to the electronic message; and allowing the number of users to access the electronic message according to the message objective.