books.google.com - 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. Its component...http://books.google.com/books/about/qmail.html?id=AYAjb7Y9HfMC&utm_source=gb-gplus-shareqmail
