Postfix mail server Basic configuration so that it has IMAP and POP3 features

The goal of this note is to show you how to make Basic settings for postfixhttp://www.aliyun.com/zixun/aggregation/12489.html "> mail server" in an enterprise environment. The main purpose of this note is to teach you the basic configuration of the Postfix mail server so that it has IMAP and POP3 functions. However, you cannot learn in this note how to integrate advanced features like virus filtering and spam filtering in the Postfix mail server.

This note provides a basic understanding of the users who have just started using postfix. Other advanced guidelines are [:P ostfixvirtualmailboxclamsmtphowto:postfix-postfix virtual mailboxes and virus filtering guides] and [: Postfixcompletevirtualmailsystemhowto:postfix-postfix full Virtual Messaging system Guide]. If you are a Postfix novice, but want to use those advanced features, you should know the instructions in advance.

Installation Tips

This guide provides installation methods that postfix send and receive messages over the network and deposit them in user mailboxes, and users can reply to their messages via courier IMAP or POP3 servers. User authentication is done by Courier Authdaemon this daemon. The following picture shows the process.

Component

The following picture shows the main postfix system components and the critical flow of information between them.

The yellow ellipse is the mail program.
A yellow box is a message queue or file.
A blue box is a lookup table.
Programs that run in a generous box are controlled by the Postfix host daemon.
The number in the generous box is the property of the Postfix messaging system.