How To Install pmailq on Ubuntu 18.04
Introduction
In this tutorial we learn how to install pmailq on Ubuntu 18.04.
What is pmailq
pmailq is:
pmailq parses the output of command from postfix (postqueue -p). It permits to perform some actions on a group of entries in queue (like removing or displaying them in a machine readable format). They are selected by applying filters (wildcards are allowed) on criterias like email address, error message from SMTP server, message size, mail status in queue.
There are three methods to install pmailq 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 pmailq Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install pmailq using apt-get by running the following command:
sudo apt-get -y install pmailq
Install pmailq Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install pmailq using apt by running the following command:
sudo apt -y install pmailq
Install pmailq 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 pmailq using aptitude by running the following command:
sudo aptitude -y install pmailq
How To Uninstall pmailq on Ubuntu 18.04
To uninstall only the pmailq package we can use the following command:
sudo apt-get remove pmailq
Uninstall pmailq And Its Dependencies
To uninstall pmailq and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove pmailq
Remove pmailq Configurations and Data
To remove pmailq configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge pmailq
Remove pmailq configuration, data, and all of its dependencies
We can use the following command to remove pmailq configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge pmailq
References
Summary
In this tutorial we learn how to install pmailq package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.
