Alternatives

Products that do what OpenBSD Email Service – A free-email alternative does

1. 1PE
   Plain Email – An app for one-touch email processing▲322

   2016 · plainemail.com

2. 2SO
   Switchboard – open-source email processing in Erlang▲92

   2014 · switchboard.spatch.co

3. 3WS
   WildDuck – Self-hosted modern email server▲222

   2019 · wildduck.email

4. 4AS
   A self-hosted email engine▲149

   2020 · mailcoach.app

5. 5EA
   Emaildrop – a free disposable email service with a GraphQL API▲35

   2019 · emaildrop.io

6. 6KA
   Kanmail – An email client that functions like a kanban board▲271

   2020 · github.com

7. 7
   OpenSource Email Template▲109

   Responsive, Free, and Community Driven

   2014

8. 8GA
   Glider, a better email client▲81

   2012 · glider.io

9. 9DA
   Drymail – A minimalist but complete email framework for Python▲21

   2019 · github.com

10. 10CU
    Cypht – Unique Open Source Webmail▲110

    2016 · cypht.org

11. 11
    Mailcloud▲110

    A New Way to Email

    2014

12. 12LT
    Learn to use email with Git▲170

    2019 · git-send-email.io

13. 13FM
    Flute – my attempt at a better email API▲40

    2018 · flutemail.com

14. 14OS
    Open-source collection of email tips and workflows▲7

    2020 · inboxze.ro

15. 15
    Switchboard▲99

    Open-source email processing built in Erlang

    2014

16. 16HS
    Heimdall – Self-managed email alias/forwarding service▲130

    2020 · github.com

17. 17
    Boxer▲73

    The first open platform for mobile email

    2014

18. 18YE
    Your Email Assistant in the Cloud▲22

    2012 · tray.io

19. 19PO
    ParseMail.org – A tool for email admins▲8

    2015 · parsemail.org

20. 20OS
    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

21. 21AG
    A Grunt workflow for designing and testing HTML emails▲66

    2014 · github.com

22. 22CB
    Contentful-based email content editor▲28

    2016 · github.com

23. 23EP
    Easily publish an email conversation to the web▲52

    2012 · beta.thread.is

24. 24PA
    Postman – A command-line utility for batch-sending email▲48

    2014 · github.com

Ranked by how close each launch is in meaning, then by votes. Refine with a description →