ucspi-proxy-pop3 command not found

In this troubleshooting guide we learn how to fix ucspi-proxy-pop3 command not found error message

Introduction

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

ucspi-proxy-pop3: command not found

or when using sudo you get the following error message

sudo: ucspi-proxy-pop3: command not found

Solutions to ucspi-proxy-pop3: command not found

How To Fix ucspi-proxy-pop3: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu ucspi-proxy-pop3 is provided by ucspi-proxy package.

ucspi-proxy is:

This package contains a proxy program that passes data back and forth between two connections set up by a UCSPI server and a UCSPI client.

See http://cr.yp.to/proto/ucspi.txt for more information on UCSPI. See http://untroubled.org/ucspi-proxy/ for recent information.

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

sudo apt-get -y install ucspi-proxy

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

You can also use apt command to install ucspi-proxy.

sudo apt -y install ucspi-proxy

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

sudo aptitude install ucspi-proxy

Summary

In this tutorial we learn how to fix ucspi-proxy-pop3 command not found error in Ubuntu / Debian / Kali Linux or Raspbian distribution.