How To Install qpsmtpd on Ubuntu 22.04
Introduction
In this tutorial we learn how to install qpsmtpd on Ubuntu 22.04.
What is qpsmtpd
qpsmtpd is:
This is a replacement SMTP daemon which installs alongside a mail delivery and transport system such as Exim, Postfix or Qmail, or used as an SMTP proxy for a remote/DMZ MTA.
The qpsmtpd damon emphasizes spam detection during the SMTP transaction, attempting to reach spam/nonspam decisions prior to accepting each message, thereby eliminating much bounce/forgery blowback. It exploits its visbility into the network transaction to detect certain behaviors often exhibited by spam sending agents.
Qpsmtpd is written in Perl, with an extensive plugin API making it easy to add new features or replace functional components.
There are three methods to install qpsmtpd on Ubuntu 22.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install qpsmtpd Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install qpsmtpd using apt-get by running the following command:
sudo apt-get -y install qpsmtpd
Install qpsmtpd Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install qpsmtpd using apt by running the following command:
sudo apt -y install qpsmtpd
Install qpsmtpd Using aptitude
If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude using the following command.
sudo aptitude update
After updating apt database, We can install qpsmtpd using aptitude by running the following command:
sudo aptitude -y install qpsmtpd
How To Uninstall qpsmtpd on Ubuntu 22.04
To uninstall only the qpsmtpd package we can use the following command:
sudo apt-get remove qpsmtpd
Uninstall qpsmtpd And Its Dependencies
To uninstall qpsmtpd and its dependencies that are no longer needed by Ubuntu 22.04, we can use the command below:
sudo apt-get -y autoremove qpsmtpd
Remove qpsmtpd Configurations and Data
To remove qpsmtpd configuration and data from Ubuntu 22.04 we can use the following command:
sudo apt-get -y purge qpsmtpd
Remove qpsmtpd configuration, data, and all of its dependencies
We can use the following command to remove qpsmtpd configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge qpsmtpd
References
Summary
In this tutorial we learn how to install qpsmtpd package on Ubuntu 22.04 using different package management tools: apt, apt-get and aptitude.
