How to Install Mailu on Elementary OS Latest

Mailu is a free and open-source mail server that provides secure email services. In this tutorial, we will learn how to install Mailu on Elementary OS Latest.

Prerequisites

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

• A VPS running Elementary OS Latest.
• A user with sudo privileges.

Step 1: Install Docker and Docker Compose

Before we start installing Mailu, we need to install Docker and Docker Compose on our system. Follow the steps below to install these two packages.

Install Docker

1. Update the package list:

   $ sudo apt update
   

2. Install some necessary packages and dependencies:

   $ sudo apt-get install apt-transport-https ca-certificates curl gnupg lsb-release
   

3. Add the Docker GPG key:

   $ curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg
   

4. Add the Docker repository:

   $ echo "deb [arch=amd64 signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
   

5. Finally, install Docker:

   $ sudo apt-get update
   $ sudo apt-get install docker-ce docker-ce-cli containerd.io
   

Install Docker Compose

1. Download the latest Docker Compose release:

   $ sudo curl -L "https://github.com/docker/compose/releases/download/1.29.2/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
   

2. Apply executable permissions to the binary:

   $ sudo chmod +x /usr/local/bin/docker-compose
   

3. Verify the installation:

   $ docker-compose --version
   

Step 2: Install Mailu

Now that we have installed Docker and Docker Compose, we can proceed to install Mailu.

1. Clone the Mailu GitHub repository:

   $ git clone https://github.com/Mailu/Mailu.git
   

2. Go to the Mailu directory:

   $ cd Mailu
   

3. Create a .env file with the following command:

   $ cp .env.sample .env
   

4. Open the .env file with a text editor:

   $ nano .env
   

5. Set the required configurations in the .env file. For example:

   # Domain name where Mailu is installed
   MAILU_HOSTNAME=example.com
   
   # Username of the administrator account
   MAILU_ADMIN=admin
   
   # Password of the administrator account
   MAILU_ADMIN_PASSWORD=password
   
   # SMTP relay service provider (optional)
   MAILU_SMTP_RELAY_HOST=smtp.example.com
   MAILU_SMTP_RELAY_PORT=587
   [email protected]
   MAILU_SMTP_RELAY_PASSWORD=password
   

6. Save and close the file.

7. Run the following command to start Mailu:

   $ docker-compose up -d
   

8. Wait for the installation to complete. You can monitor the installation progress with the docker logs command:

   $ docker logs -f mailu
   

9. Once the installation is complete, you can access the Mailu web interface by visiting https://example.com (replace example.com with your domain name).

That's it! You have successfully installed Mailu on Elementary OS Latest.