Linux System Engineer: Mail Systems Using Postfix

Learn how to set up email with Postfix, the mail transport agent for Linux, and study for Postfix-related questions from the RHCE certification exam.

Introduction

• Mail systems using Postfix
• What you will need
• Virtual machine configuration
• Lab setup
• Set hostnames

1. Email Systems and Terminology

• About email
• How email works
• Mail agents

2. Introducing Postfix

• Install Postfix
• Postfix services
• Postfix commands
• Postfix logging
• Postfix and Security-Enhanced Linux (SELinux)

3. Postfix Configuration Files

• The access file
• The canonical file
• The generic file
• The relocated file
• The transport file
• The virtual file
• The aliases file
• The master file
• The main configuration file

4. Configure Postfix

• Configure a local mail server
• Send email from a remote client
• Create a null-client mail relay
• Create a mail gateway

Conclusion

• Next steps