How To Install nullmailer on Debian 12
Introduction
In this tutorial we learn how to install nullmailer on Debian 12.
What is nullmailer
nullmailer is:
Nullmailer is a replacement MTA for hosts, which relay to a fixed set of smart relays. It is designed to be simple to configure and especially useful on slave machines and in chroots.
There are three methods to install nullmailer on Debian 12. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install nullmailer Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install nullmailer using apt-get by running the following command:
sudo apt-get -y install nullmailer
Install nullmailer Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install nullmailer using apt by running the following command:
sudo apt -y install nullmailer
Install nullmailer 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 Debian. Update apt database with aptitude using the following command.
sudo aptitude update
After updating apt database, We can install nullmailer using aptitude by running the following command:
sudo aptitude -y install nullmailer
How To Uninstall nullmailer on Debian 12
To uninstall only the nullmailer package we can use the following command:
sudo apt-get remove nullmailer
Uninstall nullmailer And Its Dependencies
To uninstall nullmailer and its dependencies that are no longer needed by Debian 12, we can use the command below:
sudo apt-get -y autoremove nullmailer
Remove nullmailer Configurations and Data
To remove nullmailer configuration and data from Debian 12 we can use the following command:
sudo apt-get -y purge nullmailer
Remove nullmailer configuration, data, and all of its dependencies
We can use the following command to remove nullmailer configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge nullmailer
Dependencies
nullmailer have the following dependencies:
References
Summary
In this tutorial we learn how to install nullmailer package on Debian 12 using different package management tools: apt, apt-get and aptitude.