Skip to main content

Quick Start

Getting started with LSMTPD is simple.
You can install it in two ways:

  1. Using our official Debian APT repository (recommended).
  2. Building from source with Cargo.
Coming Soon

We will soon provide a Docker image for easier deployment. With a sample docker-compose.yml file to get you started.

Our official APT repository is hosted at: https://apt.nekonik.com

Step 1: Add the Repository​

Follow the instructions on apt.nekonik.com to add the repository to your system.

Step 2: Update & Install​

Run the following commands:

sudo apt update
sudo apt install lsmtpd

During installation, you may be prompted to configure initial settings.

  • If prompts appear, fill them out accordingly.
  • If you see no prompts, don’t worry — you can always edit the configuration later.

Step 3: Configure the Service (Optional)​

If you got prompted during installation, you can skip this step.

The main configuration file is located at:

/etc/default/lsmtpd

You can adjust environment variables here to suit your setup. For details, see the Configuration Guide.

Step 4: Start and Verify​

Enable and start the service:

sudo systemctl start lsmtpd
sudo systemctl status lsmtpd

If everything is working, you should see LSMTPD running and ready to accept connections.

Alternative: Build from Source​

If you prefer to build manually or want the latest development version, see: 👉 Build from Source