In this tutorial, you will learn how to configure Postfix for a single domain. It is compatible with Sendmail, so if you uninstall Sendmail and replace it with Postfix, your existing scripts and programs will continue to work seamlessly. In comparison, Postfix is more secure and easier to configure. Postfix was originally designed as a replacement for Sendmail – the traditional SMTP server on Unix. It’s reliable in both simple and stressful conditions. Postfix integrates tightly with Unix/Linux and does not provide functionalities that Unix/Linux already provides. It’s easy to use, designed with security and modularity in mind, with each module running at the lowest possible privilege level required to get the job done. Postfix was built by Wietse Venema who is a Unix and security expert. It’s also used to accept emails from other SMTP servers.It’s responsible for transporting email messages from a mail client/mail user agent (MUA) to a remote SMTP server.Postfix is a state-of-the-art message transport agent (MTA), aka SMTP server, which serves two purposes. This tutorial is tested on Ubuntu 22.04, Ubuntu 20.04, and Ubuntu 18.04 server. Once you finish this article, you should be able to send and receive emails with your own email domain on your own email server. In this article, I will show you how to set up a very basic Postfix SMTP server, also known as an MTA (message transport agent). This article is part 1 of this tutorial series. Hint: If you don’t want to build an email server from scratch, which is a long and tedious process, you can use Scalahosting managed VPS to set up a full-featured mail server quickly and easily. My articles are easy to follow, so if you dedicate some time to it, you will have a working email server. However, based on what you want to achieve, you might not need to follow all of them. I know this seems to be a very daunting task. Automatic IP and Domain Warm-up For Your Email Server.(optional) Enable and Configure Postscreen in Postfix to Block Spambots.How to Secure Email Server Against Hacking with Self-hosted VPN Server.Setting Up Amavis and ClamAV on Ubuntu Mail Server.How to Host Multiple Mail Domains in PostfixAdmin.Install Roundcube Webmail on Ubuntu ( MySQL/MariaDB, PostgreSQL).
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