How To Install postfix-policyd-spf-perl on Debian 9
Introduction
In this tutorial we learn how to install postfix-policyd-spf-perl on Debian 9.
What is postfix-policyd-spf-perl
postfix-policyd-spf-perl is:
postfix-policyd-spf-perl is a basic Postfix SMTP policy server for SPF checking. It is implemented in pure Perl and uses the Mail::SPF module. The SPF project web site is http://www.openspf.net/.
There are three methods to install postfix-policyd-spf-perl 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-policyd-spf-perl 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-policyd-spf-perl using apt-get by running the following command:
sudo apt-get -y install postfix-policyd-spf-perl
Install postfix-policyd-spf-perl Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install postfix-policyd-spf-perl using apt by running the following command:
sudo apt -y install postfix-policyd-spf-perl
Install postfix-policyd-spf-perl 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-policyd-spf-perl using aptitude by running the following command:
sudo aptitude -y install postfix-policyd-spf-perl
How To Uninstall postfix-policyd-spf-perl on Debian 9
To uninstall only the postfix-policyd-spf-perl package we can use the following command:
sudo apt-get remove postfix-policyd-spf-perl
Uninstall postfix-policyd-spf-perl And Its Dependencies
To uninstall postfix-policyd-spf-perl and its dependencies that are no longer needed by Debian 9, we can use the command below:
sudo apt-get -y autoremove postfix-policyd-spf-perl
Remove postfix-policyd-spf-perl Configurations and Data
To remove postfix-policyd-spf-perl configuration and data from Debian 9 we can use the following command:
sudo apt-get -y purge postfix-policyd-spf-perl
Remove postfix-policyd-spf-perl configuration, data, and all of its dependencies
We can use the following command to remove postfix-policyd-spf-perl configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge postfix-policyd-spf-perl
Dependencies
postfix-policyd-spf-perl have the following dependencies:
References
Summary
In this tutorial we learn how to install postfix-policyd-spf-perl package on Debian 9 using different package management tools: apt, apt-get and aptitude.