Abstract: A method and apparatus for creating a catalog for use with at least one computer system that manages a plurality of email messages. The catalog provides an index into the plurality of email messages, and comprises a plurality of display identifiers that each identifies an entity. The catalog correlates at least some of the plurality of display identifiers to corresponding email addresses. The method comprises creating the catalog to include a user interface that enables the display identifiers to be displayed to a user and that enables the catalog to be searched based upon at least some information other than the display identifiers.