If your machine hostname is you will only use mydomain.

Myhostname: This is the hostname of your machine. Below are the sections you need to configure: And, believe it or not, there isn’t much to do. This is the section of the configuration file you must focus on. Mailbox_command = procmail -a “$EXTENSION” Open this file up in your favorite text editor (mine is Nano) and look for the following section: This is where you will do the bulk of your configurations. The Postfix mail server has one main configuration file /etc/postfix/main.cf.

Those issues are beyond the scope of this article however. If not, you will have to check to make sure your domain is pointing to your server or that port 25 traffic can get to your server from your router, switch, or firewall. Hopefully you will see the same output you did when you used localhost. Of course you will use your own FDQN in the above command (instead of ). Now you might want to first make sure you can also connect to your domain in the same way with the command: So as soon as installation is complete you can test to make sure you can connect to your Postfix server with the command:Ģ20 localhost.localdomain ESMTP Postfix (Ubuntu) The installation will also automatically start the Postfix daemon for you. But this will happen automatically for you. That’s it! Of course, depending upon the current state of your distribution, the installation may or may not have to install some dependencies. All you have to do is follow these steps:ġ) Open up a terminal window (or, if you are using a GUI-less server just log in).Ģ) Issue the command sudo apt-get install postfix. You will be shocked at how simple it is to install the Postfix mail server. You will, of course, need to substitute your own domain (which must be a FQDN). NOTE: For the purposes of this article I will be installing Postfix on an Ubuntu Server (the release is 10.04 but can be applied to 9.10) and I will use the fake domain. And in this article I am going to show you how to get that Postfix server up and running in no time flat. It works like a champ no matter the size. I have deployed Postfix servers in single-user environments and up to three hundred user environments. Over the years I have found Postfix to be one of the easiest to set up and most reliable to deploy in most organizations. And of course, in the spirit of all things Linux, there are a number of ways you can go in order to get that mail server up and running. Regardless of why, knowing how to set up a mail server on a Linux machine is an important task any Linux admin should know. Or, maybe you just want to expand your repertoire of Linux skills.

Your company has a very limited IT budget and can’t afford Exchange or the CALs involved. You are in a company that has needs for a more reliable mail solution than anything the competition has to offer. There are a number of reasons why you would want to set up your own Linux mail server.

Install mail command in linux