AI · alternatives · 2026

24 alternatives to Maildun for Mac

Design on-brand emails by hand, with AI, or over MCP

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier.

1. 1
   GotEmail▲94

   Native Mac mail with one-click sign-in codes and AI

   8d ago · gotemail.net · its alternatives →

2. 2G
   GotEmail▲63

   A fast, native Mac mail app for all your inboxes

   1d ago · gotemail.com · its alternatives →

3. 3
   Mail Designer 365▲145

   Create powerful, responsive email designs on your Mac

   2017 · maildesigner365.com · its alternatives →

4. 4
   MailMentor▲162

   A data driven approach to writing better email

   2015 · mailmentor.io · its alternatives →

5. 5
   Helo▲103

   An independent email API from former Postmark folks

   20d ago · helohq.com · its alternatives →

6. 6
   Mlist▲147

   A better way to read email newsletters

   2015 · letterlist.com · its alternatives →

7. 7
   Inbox AI▲201

   AI-Powered Personal Productivity

   2024 · its alternatives →

8. 8
   SendLater▲80

   Email scheduler for Mac Mail.

   2015 · mailbutler.io · its alternatives →

9. 9
   MuM▲93

   A reading-first Markdown engine for macOS

   23d ago · mum.jiker.ai · its alternatives →

10. 10
    Xem▲69

    Open-source email marketing with managed SMTP

    29d ago · xem.email · its alternatives →

11. 11
    Paragraph Notes▲155

    A private Markdown notes app for Mac

    Sep 2026 · paragraphnotes.md · its alternatives →

12. 12
    Naseemfree tier, from $49/mo▲76

    A native AI agent that does real work on your Mac

    Aug 2026 · ayman3000.github.io · its alternatives →

13. 13
    Mailwell▲75

    Native Mac mail for IMAP, JMAP and Microsoft 365

    14d ago · mailwell.app · its alternatives →

14. 14
    EDM Designer▲81

    Make Responsive Email Templates. No Code.

    2014 · edmdesigner.com · its alternatives →

15. 15
    Markoff▲94

    A free Markdown previewer for OS X

    2016 · thoughtbot.com · its alternatives →

16. 16
    MailPile▲75

    A fast, responsive open source email client

    2014 · mailpile.is · its alternatives →

17. 17TM
    The MCP Client for Outlook▲8

    2025 · mail.synia.tech · its alternatives →

18. 18MA
    Milliner - A web app to quickly visually create responsive HTML emails▲6

    2019 · milliner.app · its alternatives →

19. 19
    EmailTemple▲78

    The AI studio for creating high conversion, on-brand emails

    May 2026 · emailtemple.com · its alternatives →

20. 20
    FutureMail▲52

    Email on your domain, built for people and their AI agents

    12d ago · futuremail.dev · its alternatives →

21. 21
    Markdoc▲84

    A shared Markdown editor for people and their agents

    13d ago · markdoc.app · its alternatives →

22. 22ES
    Email Signature editor with GSuite integration▲9

    2018 · emailsignature.org · its alternatives →

23. 23
    OTPfill▲68

    Autofill OTP codes from your email on Mac

    22d ago · otpfill.com · its alternatives →

24. 24
    Mail Designer 365 Approvals▲12

    Email design tool for Mac with real-time feedback feature

    2019 · maildesigner365.com · its alternatives →

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 →