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Chapter 20. Email Services > SMTP with Postfix - Pg. 443

CHAPTER 20 Email Services The world today runs on email, and without it, we would have a hard time func- tioning. Because of this, we need solid and reliable email servers to ensure that our email is processed correctly and either delivered or received on time. This chapter covers the different email services that can be used on Red Hat and how the email process works as a whole. For Red Hat, Sendmail is the default for sending mail and Dovecot is the default for receiving. Here, we focus more on Postfix for sending and Dovecot for receiving. Let's start with an overview of how email services work. Email Service Overview