# Implementing an SMTP server in Rust

DevFeed: [Implementing an SMTP server in Rust](<https://devfeed.tech/articles/implementing-an-smtp-server-in-rust-30722.md>)

Original publisher: [Read original article](<https://www.windmill.dev/blog/smtp-server>)

Author: Hugo Casademont

Published: 2024-10-07T00:00:00Z

Content type: tutorial

Language: en

Sources: [Windmill Blog](<https://devfeed.tech/sources/windmill-blog.md>)

Topics: [Rust](<https://devfeed.tech/topics/rust.md>), [Code](<https://devfeed.tech/topics/code.md>), [Protocol (disambiguation)](<https://devfeed.tech/topics/protocol.md>), [Developer Platform](<https://devfeed.tech/topics/developer-platform.md>)

Tags: [article](<https://devfeed.tech/tags/article.md>), [code](<https://devfeed.tech/tags/code.md>), [email](<https://devfeed.tech/tags/email.md>), [implementation](<https://devfeed.tech/tags/implementation.md>), [protocol](<https://devfeed.tech/tags/protocol.md>), [rust](<https://devfeed.tech/tags/rust.md>), [server](<https://devfeed.tech/tags/server.md>), [smtp](<https://devfeed.tech/tags/smtp.md>), [smtp-email-rust-tcp-tls](<https://devfeed.tech/tags/smtp-email-rust-tcp-tls.md>), [tcp](<https://devfeed.tech/tags/tcp.md>), [tls](<https://devfeed.tech/tags/tls.md>)

## AI overview

This tutorial explains how to implement a simple SMTP server in Rust for receiving emails. It covers SMTP message flow, incoming TCP connections, command handling, and STARTTLS for encrypting connections. In Windmill, received emails can trigger scripts or flows with the email content as an argument.

## Source excerpt

In this article, we will implement a simple SMTP server in Rust for receiving emails.