number of the spamassassin package.6.2. Useful Websites• http://www.redhat.com/mirrors/LDP/HOWTO/Mail-Administrator-HOWTO.html — Provides anoverview of how email works, and examines possible email solutions and configurations onthe client and server sides.• http://www.redhat.com/mirrors/LDP/HOWTO/Mail-User-HOWTO/ — Looks at email from theuser's perspective, investigates various popular email client applications and gives anintroduction to topics such as aliases, forwarding, auto-replying, mailing lists, mail filters, andspam.• http://www.redhat.com/mirrors/LDP/HOWTO/mini/Secure-POP+SSH.html — Demonstrates away to retrieve POP email using SSH with port forwarding, so that the email passwords andmessages are transferred securely.• http://www.sendmail.net/ — Contains news, interviews, and articles concerning Sendmail,including an expanded view of the many options available.• http://www.sendmail.org/ — Offers a thorough technical breakdown of Sendmail features andconfiguration examples.• http://www.postfix.org/ — The Postfix project home page contains a wealth of informationabout Postfix. The mailing list is a particularly good place to look for information.• http://catb.org/~esr/fetchmail/ — The home page for Fetchmail, featuring an online manual,and a thorough FAQ.• http://www.procmail.org/ — The home page for Procmail with links to assorted mailing listsdedicated to Procmail as well as various FAQ documents.• http://www.ling.helsinki.fi/users/reriksso/procmail/mini-faq.html — An excellent Procmail FAQ,offers troubleshooting tips, details about file locking, and the use of wildcard characters.• http://www.uwasa.fi/~ts/info/proctips.html — Contains dozens of tips that make usingProcmail much easier. Includes instructions on how to test .procmailrc files and useProcmail scoring to decide if a particular action should be taken.• http://www.spamassassin.org/ — The official site of the SpamAssassin project.6.3. Related Books• Sendmail by Bryan Costales with Eric Allman et al; O'Reilly &Associates — A good Sendmailreference written with the assistance of the original creator of Delivermail and Sendmail.Useful Websites211
