Alternatives

Products that do what RustMail does

A fast, self-hosted MailHog alternative built in Rust

1. 1
   DevMail▲183

   Email sandbox for software developers

   2024

2. 2AS
   A simple, fast and user-friendly alternative to find, written in Rust▲456

   2017 · github.com

3. 3
   Sidemail.io▲204

   Email delivery made simple for startups

   2020

4. 4
   Debug Mail▲194

   Easy-to-use mail server for developers

   2022

5. 5OS
   OpenWorkers – Self-hosted Cloudflare workers in Rust▲500

   I've been working on this for some time now, starting with vm2, then deno-core for 2 years, and recently rewrote it on rusty_v8 with Claude's help. OpenWorkers lets you run untrusted JS in V8 isolates on your own infrastructure. Same DX as Cloudflare Workers, no vendor lock-in. What works today: fetch, KV, Postgres bindings, S3/R2, cron scheduling, crypto.subtle. Self-hosting is a single docker-compose file + Postgres. Would love feedback on the architecture and what feature you'd want next.

   Jan 2026 · openworkers.com

6. 6IM
   I'm working on an open-source Gmail replacement▲387

   2013 · khamidou.github.io

7. 7
   Listmonk▲322

   Self-hosted newsletter and mailing list manager

   2019

8. 8WI
   Written in Rust – Self hosted and fast GeoIP service with auto updates▲20

   2024 · github.com

9. 9AK
   Artifact Keeper – Open-Source Artifactory/Nexus Alternative in Rust▲166

   I'm a software engineer who keeps getting pulled into DevOps no matter how hard I try to escape it. I recently moved into a Lead DevOps Engineer role writing tooling to automate a lot of the pain away. On my own time outside of work, I built Artifact Keeper — a self-hosted artifact registry that supports 45+ package formats. Security scanning, SSO, replication, WASM plugins — it's all in the MIT-licensed release. No enterprise tier. No feature gates. No surprise invoices. Your package managers — pip, npm, docker, cargo, helm, go, all of them — talk directly to it using their native…

   Feb 2026 · github.com

10. 10RA
    RustyBox – a Busybox fork written in Rust▲114

    2019 · github.com

11. 11SO
    SeekStorm – open-source sub-millisecond search in Rust▲245

    2024 · github.com

12. 12
    InboxKitten▲162

    An open-source, disposable email service 💌

    2018

13. 13AS
    A self-hosted Twitter- and Reddit-like site written in Rust▲11

    2022 · github.com

14. 14
    Minute Mailer▲221

    Mailchimp + Buffer in one simple platform.

    2015

15. 15
    Self host Email Validation▲51

    Cleanmails - Unlimited email verification

    Jan 2026

16. 16
    MailCue▲82

    Run as a fully hardened production email server.

    Apr 2026 · olib-ai.github.io

17. 17
    Mailcheap▲123

    Email hosting, dedicated email servers, API-first platform

    2018

18. 18OS
    Open-source email helpdesk▲42

    We've tried systems like OSTicket, OTRS etc, but never found anything to our liking. Most systems were cluttered, slow or too advanced. Brimir is simple but usefull.

    2013 · github.com

19. 19PS
    Posthorn, self-hosted mail gateway▲83

    Introducing Posthorn, a self hosted email gateway. One docker container (or Go binary) between every self hosted app on your VPS and your transactional email provider. Set up Posthorn once, point your apps to it, done. I was trying to deploy Ghost on a DigitalOcean droplet and found that DO and many different VPS services have started to block the default SMTP ports to try to combat the various types of abuse they get. To actually configure my app, I had to hack together a Postfix relay. In another project, I had a static site which had a contact form, but my free Formspree account was…

    May 2026 · github.com

20. 20
    Isotope Mail Client▲74

    Microservice based mail client built with ReactJS and Spring

    2019

21. 21IM
    I made an open source Mailchimp RSS-to-Email alternative▲109

    Hi all! Excited to share rss2newsletter after completing dev work for the initial release. The idea for this project came out of necessity, as I wanted to share my articles via email newsletter. I was looking for a super minimal, lightweight, and open source solution, and when none existed, I decided to create one. For any sizable number of email recipients, a popular platform like Mailchimp will easily cost you hundreds or even thousands per month in per-contact fees. rss2newsletter, on the other hand, allows you to use Amazon SES, so you can reach your audience at pennies on the dollar.…

    2024 · github.com

22. 22
    MailSlurp▲103

    End-to-end email testing made easy

    2018

23. 23
    Fleet▲87

    The blazing fast build tool for Rust

    2022

24. 24
    Second State VM▲78

    High performance secure & portable Rust functions in Node.js

    2020

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