1. A notification system comprising: a message server configured to receive messages, each of the messages having a message header; a message program configured to apply a filter to the message header of at least one of the message based on at least one filter, the filter being established via a filter interface executable via a web browser window and including a plurality of filter options; and the message program further configured to display at least one message indicator in a message interface in response to applying the filter options of the filter to the message.