postsrsd command not found

Introduction

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

postsrsd: command not found

or when using sudo you get the following error message

sudo: postsrsd: command not found

Solutions to postsrsd: command not found

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

In Ubuntu postsrsd is provided by postsrsd package.

postsrsd is:

PostSRSd provides Sender Rewriting Scheme (SRS) support for Postfix via TCP-based lookup tables. SRS is needed if your mail server acts as a forwarder, and the mail originates from a server with Sender Policy Framework (SPF) enabled.

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

sudo apt-get -y install postsrsd

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

You can also use apt command to install postsrsd.

sudo apt -y install postsrsd

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

sudo aptitude install postsrsd

Summary

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