Internal Architecture

Explore the internal workings of LSMTPD and how it operates

📄️ Core Architecture

LSMTPD is designed to be lightweight and fast, with a focus on simplicity and performance.

This page explains the lifecycle of an email inside LSMTPD — from the moment a client connects, to when the message is delivered into AMQP.

This page gives a quick overview of the LSMTPD repository structure so contributors can navigate the codebase easily.