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Dev tools · alternatives · 2026

24 alternatives to opensend.cc

The open source email platform that runs on your server

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1

    Open-source email processing built in Erlang

    2014 · its alternatives →

  2. 2
    Resend▲1,325

    An entire collection of pre-built components with a much faster development experience.

    2023 · resend.com · its alternatives →

  3. 3

    Responsive, Free, and Community Driven

    2014 · dyspatch.io · its alternatives →

  4. 4

    Hi all! Excited to share cc.dev after months of work and refinement. The idea for this product came from trying to do email marketing for my side project, CubeDesk, a site where Rubik's Cube enthusiasts can time themselves, race with one another, train algorithms — it's a fun niche! With over 40k users, sending even a single campaign was becoming expensive with MailChimp. I knew AWS SES would be much cheaper, but it’s just an API with none of the other necessities you need for a robust email marketing platform. Beyond cost, I was also frustrated with having to make sure my database was…

    2023 · cc.dev · its alternatives →

  5. 5IM
  6. 6

    OpenBSD Email Service. Contribute to vedetta-com/caesonia development by creating an account on GitHub.

    2018 · github.com · its alternatives →

  7. 7

    A fast, responsive open source email client

    2014 · mailpile.is · its alternatives →

  8. 8

    Build cross-platform emails using natural language.

    2025 · resend.com · its alternatives →

  9. 9

    Open source email templates for use in your SaaS app.

    2018 · postmarkapp.com · its alternatives →

  10. 10SO
  11. 11
    Ovy▲268

    One click AI-generated email replies for Gmail

    2022 · chromewebstore.google.com · its alternatives →

  12. 12

    Use unique, random addresses when signing up for websites.

    2025 · github.com · its alternatives →

  13. 13

    Better transactional emails for teams.

    2020 · its alternatives →

  14. 14
    AhaSend▲132

    I'm the founder of AhaSend. We've built a transactional email service specifically for developers, with a Pay-As-You-Go pricing model ($0.50 per 1,000 emails) and up to 70% volume discount for platform partners. While there are many ESPs out there, we focused heavily on the Developer Experience to solve the pain of building and testing email flows: * The CLI: Heavily inspired by the Stripe CLI, we built a tool that lets you develop and debug locally. You can listen to webhooks, trigger events, manage your domains, and send / list / debug messages directly from your terminal. * True…

    2024 · ahasend.com · its alternatives →

  15. 15
    Helo▲103

    An independent email API from former Postmark folks

    20d ago · helohq.com · its alternatives →

  16. 16
    Inbix▲74

    Cloudflare-native Email Infrastructure for Developers

    Jul 2026 · inbix.xyz · its alternatives →

  17. 17
    Boxer▲73

    The first open platform for mobile email

    2014 · omnissa.com · its alternatives →

  18. 18
    Xem▲69

    Open-source email marketing with managed SMTP

    29d ago · xem.email · its alternatives →

  19. 19
    MailCue▲82

    Run as a fully hardened production email server.

    Apr 2026 · olib-ai.github.io · its alternatives →

  20. 20

    Hey HN, Chandler from Dittofeed (https://github.com/dittofeed/dittofeed). We just added low-code functionality to our open-source email template editor. The editor features a Notion-inspired “/” command interface for inserting new blocks. You still have the option of using MJML or HTML, but we wanted to give everyone an easier option for creating primarily text-based emails. We have a live demo of the editor which you can access here (just hit the “Create Template” button): https://demo.dittofeed.com/dashboard/templates Since this is the first…

    2024 · github.com · its alternatives →

  21. 21

    Free transactional email server with a lovely web interface

    2014 · cuttlefish.io · its alternatives →

  22. 22OS
  23. 23G

    A fast, native Mac mail app for all your inboxes

    1d ago · gotemail.com · its alternatives →

  24. 24

    Keep an eye on your email opens

    2024 · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →