vrfydmn command not found

Introduction

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

vrfydmn: command not found

or when using sudo you get the following error message

sudo: vrfydmn: command not found

Solutions to vrfydmn: command not found

How To Fix vrfydmn: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu vrfydmn is provided by vrfydmn package.

vrfydmn is:

This milter is used with postfix or sendmail to either reject mail from/body from mismatches or to fix up the body from to match mail from. This is intended for applications where local constraints on domains in use are required for sending mail.

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

sudo apt-get -y install vrfydmn

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

You can also use apt command to install vrfydmn.

sudo apt -y install vrfydmn

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

sudo aptitude install vrfydmn

Summary

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