How To Install opendkim on Ubuntu 22.04

In this tutorial we learn how to install opendkim on Ubuntu 22.04. opendkim is DomainKeys Identified Mail (DKIM) signing and verifying milter

Introduction

In this tutorial we learn how to install opendkim on Ubuntu 22.04.

What is opendkim

opendkim is:

The OpenDKIM Project is a community effort to develop and maintain a C library for producing DKIM-aware applications and an open source milter for providing DomainKeys Identified Mail (DKIM) service.

DKIM provides a way for senders to confirm their identity when sending email by adding a cryptographic signature to the headers of the message.

This package contains the OpenDKIM mail filter (Milter) for plugging into Milter-aware MTAs. It implements both signing and verification.

There are three methods to install opendkim on Ubuntu 22.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.

Install opendkim Using apt-get

Update apt database with apt-get using the following command.

sudo apt-get update

After updating apt database, We can install opendkim using apt-get by running the following command:

sudo apt-get -y install opendkim

Install opendkim Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install opendkim using apt by running the following command:

sudo apt -y install opendkim

Install opendkim 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 opendkim using aptitude by running the following command:

sudo aptitude -y install opendkim

How To Uninstall opendkim on Ubuntu 22.04

To uninstall only the opendkim package we can use the following command:

sudo apt-get remove opendkim

Uninstall opendkim And Its Dependencies

To uninstall opendkim and its dependencies that are no longer needed by Ubuntu 22.04, we can use the command below:

sudo apt-get -y autoremove opendkim

Remove opendkim Configurations and Data

To remove opendkim configuration and data from Ubuntu 22.04 we can use the following command:

sudo apt-get -y purge opendkim

Remove opendkim configuration, data, and all of its dependencies

We can use the following command to remove opendkim configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge opendkim

References

Summary

In this tutorial we learn how to install opendkim package on Ubuntu 22.04 using different package management tools: apt, apt-get and aptitude.