According to one embodiment of the present invention, a system processes messages and includes at least one processor. The system receives a message intended for a collection of messages having a common topic. The message is compared to the common topic of the collection of messages to determine relatedness of the message to the collection of messages. The presentation of the message is altered based on the comparing. Embodiments of the present invention further include a method and computer program product for processing messages in substantially the same manner described above.