Chapter 5
Managing Mail Servers
IN THIS CHAPTER
Installing and using sendmail
Working with Postfix
Testing mail delivery
Email is one of the most popular services available on Internet hosts. Email software comes in two parts: a mail transport agent (MTA), which physically sends and receives mail messages, and a mail user agent (MUA), which reads messages and prepares new messages. While there are several ways of going about implementing this service, the two most popular currently are Postfix, which is growing in popularity, and sendmail, which has been the industry standard for years. This chapter walks you through the basics for getting a Postfix or sendmail email server up and running on your Linux system.
Working with sendmail
To set up your system as a mail server using the sendmail package, you must configure the sendmail mail transport agent properly. sendmail has the reputation of being a complex but complete mail-delivery system. Just one look at sendmail's configuration file — /etc/mail/sendmail.cf in Fedora or /etc/sendmail.cf in SUSE — can convince you that sendmail is indeed complex. Luckily, you don’t have to be an expert on the sendmail configuration file. All ...
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