Installing Exim on NixOS

In this tutorial, we will walk you through the process of installing Exim on NixOS.

Prerequisites

Before we begin, make sure you have the following prerequisites:

• NixOS Latest
• A terminal with sudo access

Step 1: Update the system

Before we install Exim, it is important to make sure the system is up to date. To do this, run the following command:

sudo nixos-rebuild switch

This will update all packages on your system to the latest version.

Step 2: Install Exim

To install Exim, we will use the nix-env command. Run the following command:

sudo nix-env -i exim

This will install Exim on your system.

Step 3: Configure Exim

To configure Exim, you need to edit the exim.conf file. The location of this file is /etc/exim/exim.conf.

Open the file using your favorite text editor, and make any changes you need to. By default, Exim will use a minimal configuration, which may not be suitable for your needs.

Step 4: Start Exim

To start Exim, run the following command:

sudo systemctl start exim

To make sure that Exim starts automatically during system boot, run the following command:

sudo systemctl enable exim

Conclusion

That’s it! You have successfully installed Exim on NixOS and configured it to start automatically during system boot.