Chapter 18: Setting Up a Mail Server
In This Chapter
- Introducing SMTP and sendmail
- Installing and running sendmail
- Configuring sendmail
- Introducing Postfix
- Stopping spam with SpamAssassin
- Getting mail from the server
- Managing e-mail, tasks, and calendars with Zarafa
Today, electronic messaging is part of the communication backbone and the core of information dissemination within companies of all sizes. Everyone uses e-mail — from companies to your grandmother — and if you’re in charge of an organization’s mail server, you’ll be notified (incessantly) when it stops working.
This chapter explains how to set up a mail server in Fedora to send and receive messages. In particular, it focuses on configuring a sendmail mail server, but it also explains how to configure a Postfix mail server (which is also in the Fedora distribution). Once the mail server is configured, Fedora provides your mail server’s users with different ways to get their e-mail from your server, such as downloading it to their mail clients (with IMAP or POP).
Fedora also introduced Zarafa, which acts as a replacement for Microsoft Exchange, proving especially useful for business users. Zarafa can help your organization migrate away from Exchange and its expensive licenses.
Although the primary aspects of mail server configuration are discussed in this chapter, many configuration aspects are beyond its scope and thus are not addressed. Because security is an important concern when you’re connected to the ...