A method and apparatus of a device that focuses messages is described. In an exemplary method, the device receives a first and second group of message. The device further selects a related message from the second group of messages that is related to each message in the first group. This selecting is based on an affinity group, where the affinity group includes a message address that occurs in at least one of the messages in the second group and the affinity group is determined using the message addresses contained in the first and second groups.