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 is an open-source web-based application written in PHP that’s used to create virtual domains and email accounts for a Postfix mail server. Using PostfixAdmin, we can manage mailboxes & aliases, set quotas, configure vacation/out-of-the-office messages, and more. Plus, the web-based interface gives you the user-friendliness of a browser window with a UI.