How To Install dkimproxy on Ubuntu 18.04
Introduction
In this tutorial we learn how to install dkimproxy on Ubuntu 18.04.
What is dkimproxy
dkimproxy is:
DKIMproxy is an SMTP-proxy that signs and/or verifies emails, using the Mail::DKIM module. It is designed for Postfix, but should work with any mail server. It comprises two separate proxies, an “outbound” proxy for signing outgoing email, and an “inbound” proxy for verifying signatures of incoming email (administrators can decide if they want to run both, or only one of them). With Postfix, the proxies can operate as either Before-Queue or After-Queue content filters, and they also can be chained with content filter proxies like Amavis, which is the current default configuration of the package.
There are three methods to install dkimproxy 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 dkimproxy Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install dkimproxy using apt-get by running the following command:
sudo apt-get -y install dkimproxy
Install dkimproxy Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install dkimproxy using apt by running the following command:
sudo apt -y install dkimproxy
Install dkimproxy 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 dkimproxy using aptitude by running the following command:
sudo aptitude -y install dkimproxy
How To Uninstall dkimproxy on Ubuntu 18.04
To uninstall only the dkimproxy package we can use the following command:
sudo apt-get remove dkimproxy
Uninstall dkimproxy And Its Dependencies
To uninstall dkimproxy and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove dkimproxy
Remove dkimproxy Configurations and Data
To remove dkimproxy configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge dkimproxy
Remove dkimproxy configuration, data, and all of its dependencies
We can use the following command to remove dkimproxy configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge dkimproxy
References
Summary
In this tutorial we learn how to install dkimproxy package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.