Qmail has quietly become one of the most widely used applications on the Internet today. It's powerful enough to handle mail for systems with millions of users-Like Yahoo! Mail and Hotmail, while remaining compact and manageable enough for the smallest Unix- and Linux-based PC systems.'Qmail' concentrates on common tasks like moving a sendmail setup to qmail, or setting up a 'POP toaster', a system that provides mail service to a large number of users on other computers sending and retrieving mail remotely. The book also fills crucial gaps in existing documentation, detailing exactly what the core qmail software does. If you need to manage mailing lists, large volumes of mail, or simply find sendmail and other MTAs too complicated, 'qmail' may be exactly what's called for. 'Qmail' will provide the guidance you need to build an email infrastructure that performs well, makes sense, and is easy to maintain.