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How to install and configure Postfix on Debian

In this tutorial we will show you how to install and configure Postfix on your Debian VPS.

WHAT IS POSTFIX?
Postfix is one of the most popular Mail Transfer Agent (MTA). It is also free,open-source software what can be used to route and delivers electronic mail on any Linux system.

It is intended as an alternative to the widely used Sendmail MTA and it is estimated that around 25% of public mail servers on the internet run Postfix.

LEt’s START
The first thing you need to do before starting with the installation is to log in to your Debian VPS as ROOT via SSH. Once you are in make sure that your Debian system is fully up-to-date by running the following commands in your terminal: