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How to Install docker-mailserver on nixOS Latest

docker-mailserver is a popular email server built on top of docker. In this tutorial, we will guide you on how to install docker-mailserver on nixOS Latest. Let's get started.

Step 1: Install Docker

Before we start installing docker-mailserver, we need to install Docker. To install Docker on nixOS Latest, we need to execute the following commands in a terminal.

sudo nix-env -iA nixos.docker
sudo systemctl start docker
sudo systemctl enable docker

This will install and start Docker.

Step 2: Clone the Docker-Mailserver Repository

Let's clone the repository of docker-mailserver.

git clone https://github.com/docker-mailserver/docker-mailserver.git

Step 3: Copy the Configuration File

Next, copy the template configuration file to the docker-compose.override.yml file.

cd docker-mailserver
cp -r sample-config/postfix/ docker-mailserver/
cp sample-config/docker-compose.yml docker-compose.override.yml

Step 4: Edit Configuration

We need to edit the configuration files before running docker-mailserver. So, let's open the docker-mailserver directory and edit the files.

cd docker-mailserver
vim mail.env

We need to edit the following variables in mail.env.

PUID=<UID of the user>
PGID=<GID of the group>
VIRTUAL_ALIAS_DOMAIN=<domain name>
VIRTUAL_ALIAS=<alias email>
SPOOF_PROTECTION=enforce
SPAMASSASSIN_SPAM_TO_INBOX=1
ENABLE_CLAMAV=1
ENABLE_FAIL2BAN=1

Step 5: Start the Docker container

After editing the configuration files, we can start the Docker container using the following command.

docker-compose up -d mailserver

This command will start the Docker container in the background.

Step 6: Test the Mailserver

After starting the Docker container, we can test the mail server by sending an email.

echo "hello" | mail -s "Test Email" test@testDomain.com

If you receive the email, then the mail server is properly configured.

Conclusion

In this tutorial, we have shown you how to install docker-mailserver on nixOS Latest. We hope this tutorial was helpful for you. For more information about docker-mailserver, you can check out their official documentation at https://docker-mailserver.github.io/docker-mailserver/edge/.

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