Postfix - Mail Transport Agent (MTA)

This chapter provides introductions and tutorial examples about Postfix - Mail Transport Agent (MTA). Topics include installing, configuring, and starting Postfix; testing Postfix using STMP commands with 'telnet'; turn on 'SMTP Submission' and 'SMTPS' services; using 'postconf' command.

These sections are omitted from this Web preview version. To view the full content, see information on how to obtain the full version this book.

What Is Postfix

Install and Configure Postfix on CentOS

Test Postfix Server with "telnet" Client

SMTP with STARTTLS on Port 25 in Postfix

"openssl s_client" Test SSL/TLS Connection

SMTP Submission Service on Port 587 in Postfix

SMTPS Service on Port 465 in Postfix

Archive Emails using "always_bcc" Setting in Postfix

Move /var/spool/postfix to New Location

"postconf" Command to Manage Postfix Configuration

Turn on Postfix Server Logging for Troubleshooting

Replace Self-Signed Root Certificate on Postfix


Table of Contents

 About This Book

 Introduction to Linux Systems

 Cockpit - Web Portal for Administrator

 Process Management

 Files and Directories

 Users and Groups

 File Systems

 Block Devices and Partitions

 LVM (Logical Volume Manager)

 Installing CentOS

 SELinux - Security-Enhanced Linux

 Network Connection on CentOS

 Internet Networking Tools

 SSH Protocol and ssh/scp Commands

 Software Package Manager on CentOS - DNF and YUM

 vsftpd - Very Secure FTP Daemon

Postfix - Mail Transport Agent (MTA)

 Dovecot - IMAP and POP3 Server

 Email Client Tools - Mail User Agents (MUA)

 LDAP (Lightweight Directory Access Protocol)

 Administrative Tasks


 Full Version in PDF/EPUB