OpenBSD Email Service

• UpdatedOct 20, 2019
• Makefile

A Python Mail Server

• UpdatedFeb 25, 2025
• Python

A reimplementation of the Python stdlib smtpd.py based on asyncio.

• UpdatedMar 17, 2025
• Python

The first Open-Source high-performance MTA developed from the ground-up for high-volume email sending environments.

• UpdatedMar 18, 2025
• Rust

A Lightweight High Performance ESMTP email server

• UpdatedAug 24, 2018
• Go

SMTP server (library) for receiving emails, written in pure PHP.

• UpdatedMar 23, 2020
• PHP

mxcheck is an info and security scanner for e-mail servers.

• UpdatedFeb 27, 2025
• Go

Blackhole is an MTA written on top of asyncio, utilising async and await statements that dumps all mail it receives to /dev/null.

• UpdatedOct 28, 2022
• Python

SQLite-backed mail processing suite

• UpdatedFeb 11, 2020
• C

A Golang library for implementing RFC2821 SMTP servers

• UpdatedMar 8, 2023
• Go

Gene's SMTP server — receive Internet mail with less fuss

• UpdatedMar 10, 2025
• C++

Postmaster ESMTP server

• UpdatedJan 16, 2023
• Haskell

Ansible role to install sendmail

• UpdatedAug 24, 2019

A pytest fixture that creates an SMTP server.

• UpdatedApr 21, 2024
• Python

A simple PHP wrapper for OpenBSD smtpd service to use in your web apps - PHP: <=8.1, GPL

• UpdatedJun 29, 2023
• PHP

A very basic simulation of a mail server storing mails received in an encrypted form. Originally developed as a mini project for Computer Networks, a subject taught in the 6th semester of B.E degree course in CS at PCCOE, Pune.

• UpdatedJul 24, 2019
• Python

Simple SMTP daemon

• UpdatedFeb 28, 2018
• C

SMTP dual delivery relay (proxy) daemon, this allows testing of a new server side by side of a production server, optionally saving proxied email as eml files.

• UpdatedJan 22, 2016
• Python

Free SMTP Server

• UpdatedOct 22, 2023