The primary goal of a backup machine for Postfix is that if the first one fails, mail will be collected by the secondary mail server until the primary mail server is back online. When you build the Backup MX be sure to install all of the necessary applications to scan for viruses and check for SPAM as you do not want to overload the primary machine once it comes online.

You need several different methods of backing up your mail server. One of those methods is using a compressed tar file of all of the important configuration files and directories that have content for Postfix. In addition, you will need to add a timestamp for your backups to you can go back and dig out mail from the archives if needed.

This tutorial will show you how to configure a basic Postfix Mail server for CentOS,OpenSuse and Ubuntu.

This howto will explain how to go about setting up an email server on Centos 5 using Postfix, Dovecot, RoundCube, Virtual Users/Domain and phpAdmin. I have also done a similar setup on Fedora Core 6. My best advice is to set this up first on a workstation and test it thoroughly before setting up on a server and going live with it!

Webmin is a graphical tool that can be used to work with Linux servers that only have text mode. This tutorial will show you the basics of setting up the Postfix Mail server with webmin.

eBox Platform is an open source small business server that allows you to manage all your services like firewall, DHCP, DNS, VPN, proxy, IDS, mail, file and printer sharing, VoIP, IM and much more. These functionalities are tightly integrated, automating most tasks, avoiding mistakes and saving time for system administrators.

One of the newest features of Ubuntu 9.04 is the Postfix Mail Server/Dovecot enhancements to make it easier to set up a mail server. This article is a review of those improvements and a tutorial on how to fix several problems that were experienced.

...there are a number of ways you can go in order to get that mail server up and running. Over the years I have found Postfix to be one of the easiest to set up and most reliable to deploy in most organizations.

Getmail is a program for retrieving emails from remote servers; it is very similar to fetchmail, but more flexible. For example, it can be configured to deliver mails directly to a Maildir or mbox mailbox without the need for an MTA such as Postfix, but of course it can also pipe the mails through an MTA if you want.