How To Install sa-exim on Ubuntu 18.04
Introduction
In this tutorial we learn how to install sa-exim on Ubuntu 18.04.
What is sa-exim
sa-exim is:
SA-Exim integrates SpamAssassin filtering at SMTP time with the Exim v4 MTA. It may be used to reject incoming mails before they arrive, or even to tie up the sender’s resources by slowing down the connection (“teergrubing”).
Most of the functionality of this package can also be achieved using the exiscan ACL conditions built into the “heavy” Exim daemon, exim-daemon-heavy. Use this package if you need SpamAssassin’s report_safe feature, or if you want to have easier control over the header fields added, without using the report template to add multiple fields.
There are three methods to install sa-exim on Ubuntu 18.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install sa-exim Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install sa-exim using apt-get by running the following command:
sudo apt-get -y install sa-exim
Install sa-exim Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install sa-exim using apt by running the following command:
sudo apt -y install sa-exim
Install sa-exim 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 sa-exim using aptitude by running the following command:
sudo aptitude -y install sa-exim
How To Uninstall sa-exim on Ubuntu 18.04
To uninstall only the sa-exim package we can use the following command:
sudo apt-get remove sa-exim
Uninstall sa-exim And Its Dependencies
To uninstall sa-exim and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove sa-exim
Remove sa-exim Configurations and Data
To remove sa-exim configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge sa-exim
Remove sa-exim configuration, data, and all of its dependencies
We can use the following command to remove sa-exim configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge sa-exim
References
Summary
In this tutorial we learn how to install sa-exim package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.
