Alternatives

Products that do what List of open source Email Projects does

Awesome list about opensource email projects like : - SMTP Server - Email testing application - Email Builder - SPAM Filtering - ...

1. 1
   Transactional Email Templates by Postmark▲210

   Open source email templates for use in your SaaS app.

   2018

2. 2
   EmailTest.com▲149

   World's easiest spam testing and email rendering service

   2017

3. 3
   Postal▲231

   Open source mail delivery platform

   2017

4. 4
   Mailchimp Pattern Library▲139

   The Mailchimp UI framework

   2015

5. 5
   MailSlurp▲133

   Test, build & automate email and SMS

   2024

6. 6
   Great Email Copy▲356

   A dose of emails from around the web.

   2015

7. 7
   Email Mastery▲286

   The place to learn email marketing

   2020

8. 8
   .meteoremails▲107

   Send cold emails for free! Free and open source project

   2020

9. 9
   analyze.email▲136

   Test the spam-y-ness of your emails

   2017

10. 10
    SMTP‑Test.com▲103

    One‑click SMTP server test with real‑time protocol logs

    2025

11. 11
    EmailDrips▲333

    Get inspired by examples of email sequences

    2017

12. 12
    Mail Tester▲307

    Test the spamminess of your email

    2016

13. 13
    Mailtrain▲330

    Self hosted newsletter app (Mailchimp clone)

    2016

14. 14
    React Email 6.0 by Resend▲135

    Build, customize, and ship emails — all from your own app

    Apr 2026

15. 15
    EmailMe▲148

    Email notifications for your projects

    2024

16. 16
    OpenSource Email Template▲109

    Responsive, Free, and Community Driven

    2014

17. 17
    Thank You, Open Source▲138

    Write a thank you letter to your favor open source project!

    2017

18. 18OE
    OpenBSD Email Service – A free-email alternative▲215

    2018 · github.com

19. 19
    MailSlurp▲103

    End-to-end email testing made easy

    2018

20. 20
    Hide My Email - Open Source Extension▲114

    Use unique, random addresses when signing up for websites.

    2025

21. 21
    TOPOL.io▲146

    Beautiful HTML emails, made easy

    2022

22. 22OS
    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

23. 23
    Mailmalade▲120

    Build compatible HTML emails without coding knowledge

    2014

24. 24
    Mailbites▲175

    Build email templates, faster than ever

    2023

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