How To Install postfix-pgsql on Debian 9
Introduction
In this tutorial we learn how to install postfix-pgsql on Debian 9.
What is postfix-pgsql
postfix-pgsql is:
Postfix is Wietse Venema’s mail transport agent that started life as an alternative to the widely-used Sendmail program. Postfix attempts to be fast, easy to administer, and secure, while at the same time being sendmail compatible enough to not upset existing users. Thus, the outside has a sendmail-ish flavor, but the inside is completely different.
This provides support for PostgreSQL maps in Postfix. If you plan to use PostgreSQL maps with Postfix, you need this.
There are three methods to install postfix-pgsql on Debian 9. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install postfix-pgsql Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install postfix-pgsql using apt-get by running the following command:
sudo apt-get -y install postfix-pgsql
Install postfix-pgsql Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install postfix-pgsql using apt by running the following command:
sudo apt -y install postfix-pgsql
Install postfix-pgsql 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 postfix-pgsql using aptitude by running the following command:
sudo aptitude -y install postfix-pgsql
How To Uninstall postfix-pgsql on Debian 9
To uninstall only the postfix-pgsql package we can use the following command:
sudo apt-get remove postfix-pgsql
Uninstall postfix-pgsql And Its Dependencies
To uninstall postfix-pgsql and its dependencies that are no longer needed by Debian 9, we can use the command below:
sudo apt-get -y autoremove postfix-pgsql
Remove postfix-pgsql Configurations and Data
To remove postfix-pgsql configuration and data from Debian 9 we can use the following command:
sudo apt-get -y purge postfix-pgsql
Remove postfix-pgsql configuration, data, and all of its dependencies
We can use the following command to remove postfix-pgsql configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge postfix-pgsql
Dependencies
postfix-pgsql have the following dependencies:
References
Summary
In this tutorial we learn how to install postfix-pgsql package on Debian 9 using different package management tools: apt, apt-get and aptitude.