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Build from Source

If you prefer to build LSMTPD from source, you can do so easily using the Rust toolchain.
This is useful if you want to:

  • Run the latest development version.
  • Contribute to the project.
  • Customize or experiment with the code.

Prerequisites​

  • Rust toolchain: Install Rust from https://www.rust-lang.org

  • Git: Install Git if not already installed, based on your OS.

  • 2 GB Space: Ensure you have at least 2 GB of free disk space.

info

Final executable will be located in target/release/lsmtpd with around 6.5MB binary size.

Clone the Repository​

Clone the official repository from GitHub:

git clone https://github.com/Neko-Nik/LSMTP.git
cd LSMTP

Build the Binary​

Compile in release mode for best performance:

cargo build -r

After compilation, the binary will be located at:

target/release/lsmtpd

Running the Server​

You can run the server directly:

./target/release/lsmtpd
warning

LSMTPD will read configuration from environment variables only and not from file, so export all the required variables as such.