Top 9 Complete solution Open-Source Projects

Mail-in-a-Box

183 13,286 8.8 Python

Mail-in-a-Box helps individuals take back control of their email by defining a one-click, easy-to-deploy SMTP+everything else server: a mail server in a box.

Project mention: Mail-in-a-Box – Take back control of your email | news.ycombinator.com | 2024-02-24

Mailcow

180 7,931 9.5 JavaScript

mailcow: dockerized - 🐮 + 🐋 = 💕

Project mention: Ask HN: Self Hosting an Email Server? | news.ycombinator.com | 2024-01-29

I've been running mailcow [1] on a Hetzner cloud server for a few years and am pretty happy with it.
[1] https://mailcow.email

InfluxDB

www.influxdata.com sponsored

Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
Mailu

51 5,419 9.4 Python

Insular email distribution - mail server as Docker images

Project mention: Roundcube and docker-mailserver (Docker Mailserver) on the same VPS | /r/selfhosted | 2023-12-06

Consider installing Mailu instead, which is a single Docker container with a full mail server and Roundcube on top. Very easy to install.

wildduck

15 1,829 9.2 JavaScript

Opinionated email server

Project mention: Ask HN: What do you think about EUPL in comparison to other copyleft licences? | news.ycombinator.com | 2024-03-03

Nodemailer author here. I now publish all my libraries/tools (like Nodemailer) under some permissive license (MIT, MIT-0, ISC). This gives the opportunity to use such a library without issues, and the end user never knows about these tools anyway. For example if I build a OSS software and commercial software that both use such library, then it is easier to manage it under permissive license - I don't want copyleft licenses turning up in my commercial software even if I'm the owner.
For OSS applications, I use EUPL (eg. https://wildduck.email/) or AGPL copyleft licenses. The license does not stop anyone using it as an application, but at the same time people are not free to copy, rename and sell it either.

debops

7 1,185 8.6 Jinja

DebOps - Your Debian-based data center in a box
homebox

0 434 9.2 Shell

A set of ansible scripts to build a personal mail server / private cloud / etc. (by progmaticltd)
power-mailinabox

6 158 0.0 Python

A Mail-in-a-Box with extra capabilities and more customizability. Not just for power users!
WorkOS

workos.com sponsored

The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
AnsiMail

2 153 0.0 Jinja

Fullstack, security focused, personal mail server based on OpenSMTPD for OpenBSD
iRedMail

0 - -

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).