May 24, 2021 That's what Linux should learn
E-mail system is one of our most commonly used network services in our daily work and life, this chapter will first introduce the origin of e-mail system, and then introduce SMTP, POP3, IMAP4 and other common e-mail protocols, as well as MUA, MTA, MDA, the role of the three service roles. T his chapter will provide a complete demonstration of how to configure e-mail system services using Postfix and Dovecot service providers in Linux systems, focusing on common configuration parameters, and will also validate mail delivery between client hosts and servers in conjunction with DNS domain name resolution services provided by BIND service providers. This chapter concludes with instructions on how to set up user aliases in an e-mail system to help you better control and manage your e-mail accounts and mailbox addresses in a production environment.