This Email Indexer and Categorizer creates indexes for any combination of Eudora, Netscape, or Microsoft Outlook Express email messages. One BoilerBase index provides a rich variety of views and an unlimited number of categorizations of messages that are physically in a single set of local mail files created by one mailer for one user, or which are distributed among mail files for one or any number of users on multiple platforms, by one type or multipletypes of mailers.