Compiling

Overview

Compiling Stalwart SMTP from the source has the main advantage that binaries are built with optimizations specific to your hardware which may result in better performance. Another advantage is that you may enable or disable features to suit your needs.

To compile Stalwart SMTP you need the latest version of Rust.

Install Rust

The fastest way to install rust is with rustup. On Unix systems run the following in your terminal, then follow the onscreen instructions

curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh

If you are running Windows 64-bit, download and run rustup‑init.exe, then follow the onscreen instructions.

Clone Repo

Clone the Stalwart SMTP repository:

git clone https://github.com/stalwartlabs/smtp-server.git
cd smtp-server

Compile

Install protoc:

sudo apt-get install protobuf-compiler

And then compile Stalwart SMTP by executing:

cargo build --release

Once the compilation process is completed, the Stalwart SMTP binary will be available under target/release/stalwart-smtp.

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