In this tutorial, we’ll be covering the process of setting up a mail server with Postfix, Dovecot, Postfixadmin and MariaDB on an Ubuntu 20.04 VPS. But first, what is PostfixAdmin?

PostfixAdmin allows us to use virtual email addresses and virtual mailboxes, so we do not need to create a new system user account for each email address. Considering all of these details, PostfixAdmin is a versatile tool and can be used for almost all of your mailing needs. This tutorial goes quite in-depth and may take some time to configure everything properly. Let’s get started with the installation steps.


Puppet is a powerful open-source configuration management tool that can be used to deploy, configure, manage, and maintain a server while accessing it remotely. Puppet is written in Ruby and helps you to deploy and manage a single server – all the way up to thousands of physical and virtual servers – all from a central location.
Flectra is built using the Python programming language and PostgreSQL as its database backend. This software aims to help almost everyone, whether it’s a small startup or a large corporation. Flectra has a simple and user-friendly interface and a modular design that enables you to add or remove tools to make it work the way you need it to.
Flectra integrates the capabilities of CRM and ERP systems into a single package. Flectra helps you modify and adapt your system to meet the unique needs of your business. This makes it the ultimate business app suite that gives you a scalable business management platform which provides you with all the freedom to make the software work for you and your business setup.
Open Classifieds is a free, open-source, and powerful web application that can be used to create classifieds, advertisements, and listings sites, all in just a few minutes. It is simple, easy to use, secure, SEO-friendly and easy to administrate.


We will create the 