md-mx-ctrl command not found

Introduction

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

md-mx-ctrl: command not found

or when using sudo you get the following error message

sudo: md-mx-ctrl: command not found

Solutions to md-mx-ctrl: command not found

How To Fix md-mx-ctrl: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu md-mx-ctrl is provided by mimedefang package.

mimedefang is:

MIMEDefang is an e-mail filter program which processes all messages sent via Sendmail. It splits multi-part MIME messages into their components and can delete or modify those parts before reassembling the message and sending it on its way.

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

sudo apt-get -y install mimedefang

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

You can also use apt command to install mimedefang.

sudo apt -y install mimedefang

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

sudo aptitude install mimedefang

Summary

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