WildDuck Mail Server by zone-eu
Opinionated email server
About WildDuck Mail Server
From the project's README at github.com/zone-eu/wildduck. Lightly cleaned for readability; for the full source see the upstream repo.
WildDuck uses a distributed database (sharded + replicated MongoDB) as a backend for storing all data, including emails.
WildDuck tries to follow Gmail in product design. If there's a decision to be made then usually the answer is to do whatever Gmail has done. Links Website Documentation Installation instructions API Documentation License
WildDuck Mail Server is licensed under the [European Union Public Lic
Health score breakdown
6-dimension composite. See methodology for formula and weights.
Adoption signals
Real-world usage data, pulled from each registry. The bigger the numbers, the more battle-tested the project.
| Signal | Value | Source |
|---|---|---|
| GitHub stars | 2.1k | github.com/zone-eu/wildduck |
| GitHub forks | 276 | github.com/zone-eu/wildduck |
| NPM downloads (last month) | 3.6k | wildduck |
Release & maintenance
Is this project actively maintained, or about to die? Check the recency of last commit and last release.
| Project age | 9.3 years | since Mar 2017 |
| Last commit | 7 days ago | Jun 20, 2026 |
| Releases shipped | 80 | last: 16 days ago |
| Funding links | 2 | declared by maintainers |
Self-hosting cost across providers
Detected requirements: 4GB RAM, 40GB disk minimum. Cheapest plan per provider that meets the requirement.
| Provider | Plan | Specs | Monthly | |
|---|---|---|---|---|
| hetzner | CAX11 | 2c · 4GB · 40GB | $4.13 USD | Deploy → |
| vultr | VC2 | 1c · 1GB · 25GB | $5 USD | Deploy → |
| linode | Nanode 1GB | 1c · 1GB · 25GB | $5.12 USD | Deploy → |
| digitalocean | Basic Regular 1GB | 1c · 1GB · 25GB | $6 USD | Deploy → |
What people say on Hacker News
Ready to self-host WildDuck Mail Server?
Spin up a hetzner CAX11 (4GB RAM, 40GB disk) for $4.13/mo and follow the project's official install docs.
Data last refreshed Jun 21, 2026.