Then install the postfix package with the following command. To begin, update your local apt package cache: Postfix is included in Ubuntu’s default repositories, so you can install it with APT. Wherever necessary, be sure to change or to reflect your own FQDN.
Note that this tutorial assumes that you are configuring a host that has the FQDN of. Be aware that if you plan on accessing mail from an external location, you will need to make sure you have an MX record pointing to your mail server as well. You can find help on setting up your domain name with DigitalOcean by following our Domains and DNS Networking documentation.
A Fully Qualified Domain Name pointed at your Ubuntu 20.04 server. You can follow our Ubuntu 20.04 initial server setup guide to set this up. This server should have a non-root user with sudo privileges and a firewall configured with UFW. A server running Ubuntu 20.04 to function as your Postfix mail server. If you’re sure you want to follow this guide to install and configure Postfix, then you must first have the following: If you’re considering running your own mail server, we encourage you to review this article on why you may not want to do so. For most users, it’s more practical to instead rely on a paid mail service. Setting up and maintaining your own mail server is complicated and time-consuming. You won’t have a full featured email server by the end of this guide, but you will have some of the foundational components of such a setup to help you get started. Note that the goal of this tutorial is to help you get Postfix up and running quickly with only some bare-bones email functionality. Then, you’ll test that Postfix is able to correctly route mail by installing s-nail, a Mail User Agent (MUA), also known as an email client. In this guide, you’ll learn how to install and configure Postfix on an Ubuntu 20.04 server. It is estimated that around 25% of public mail servers on the internet run Postfix. Postfix is a popular open-source Mail Transfer Agent (MTA) that can be used to route and deliver email on a Linux system. A previous version of this tutorial was written by Justin Ellingwood Introduction
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