nullmailer-send command not found

Introduction

When you run more command in linux terminal / console, you get the following error message

nullmailer-send: command not found

or when using sudo you get the following error message

sudo: nullmailer-send: command not found

Solutions to nullmailer-send: command not found

How To Fix nullmailer-send: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu nullmailer-send is provided by nullmailer package.

nullmailer is:

Nullmailer is a replacement MTA for hosts, which relay to a fixed set of smart relays. It is designed to be simple to configure and especially useful on slave machines and in chroots.

To fix this problem, we can install more using the command below.

sudo apt-get -y install nullmailer

This command might take some time to finish depending on your machine internet connection.

You can also use apt command to install nullmailer.

sudo apt -y install nullmailer

Or if you have aptitude installed you can use the following command.

sudo aptitude install nullmailer

Summary

In this tutorial we learn how to fix nullmailer-send command not found error in Ubuntu / Debian / Kali Linux or Raspbian distribution.