How To Install extsmail on Kali Linux

Introduction

In this tutorial we learn how to install extsmail on Kali Linux.

What is extsmail

extsmail is:

extsmail masquerades as the standard UNIX sendmail program, reading messages, and later piping them to user-defined commands.

In a sense, extsmail can be thought of as a very simple “tiny” sendmail (Think SSMTP, UUCP, …)

A typical use is to allow e-mail to be piped via ssh to external servers running a full sendmail-compatible MTA. extsmail is designed to have sensible defaults, and configuring it is a one-off, quick job.

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

Install extsmail Using apt-get

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

sudo apt-get update

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

sudo apt-get -y install extsmail

Install extsmail Using apt

Update apt database with apt using the following command.

sudo apt update

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

sudo apt -y install extsmail

Install extsmail Using aptitude

If you want to follow this method, you might need to install aptitude on Kali Linux first since aptitude is usually not installed by default on Kali Linux. Update apt database with aptitude using the following command.

sudo aptitude update

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

sudo aptitude -y install extsmail

How To Uninstall extsmail on Kali Linux

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

sudo apt-get remove extsmail

Uninstall extsmail And Its Dependencies

To uninstall extsmail and its dependencies that are no longer needed by Kali Linux, we can use the command below:

sudo apt-get -y autoremove extsmail

Remove extsmail Configurations and Data

To remove extsmail configuration and data from Kali Linux we can use the following command:

sudo apt-get -y purge extsmail

Remove extsmail configuration, data, and all of its dependencies

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

sudo apt-get -y autoremove --purge extsmail

Dependencies

extsmail have the following dependencies:

• libc6

References

• extsmail website

Summary

In this tutorial we learn how to install extsmail package on Kali Linux using different package management tools: apt, apt-get and aptitude.