Growth · alternatives · 2026

24 alternatives to Mail Engine

The Best Self-Hosted Auto responder Software

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Mail Engine launched in 2019; newer entries below may have overtaken it.

1. 1AS
   A self-hosted email engine▲149

   2020 · mailcoach.app · its alternatives →

2. 2
   Mailmeteor 2.0▲301

   Send auto follow-up emails with Gmail

   2022 · its alternatives →

3. 3
   Mailmeteor▲567

   Send hundreds of personalized emails with Gmail.

   2019 · its alternatives →

4. 4
   Email Studio for Gmail▲204

   Send personalized emails, schedule emails directly in Gmail

   2018 · its alternatives →

5. 5
   Mailforge▲627

   Cold email infrastructure sorted in minutes

   2024 · mailforge.ai · its alternatives →

6. 6
   If No Reply▲363

   Simple email automation that works for Gmail

   2016 · its alternatives →

7. 7
   Superinbox▲531

   Email vibing in your Gmail / Outlook

   Oct 2025 · superinbox.com · its alternatives →

8. 8
   Listmonk▲322

   Self-hosted newsletter and mailing list manager

   2019 · its alternatives →

9. 9
   nuevoMailer▲4

   Email autoresponders and campaigns from your own website

   2024 · its alternatives →

10. 10
    Mailerr▲119

    Automated Infrastructure for boosting Cold Email Delivery

    2025 · mailerr.co · its alternatives →

11. 11
    [Sending]flow▲191

    All-in-one Webflow email autoresponder

    2024 · sendingflow.app · its alternatives →

12. 12
    Jotform Gmail Agent▲260

    Automatically draft Gmail replies that sound just like you

    2025 · jotform.com · its alternatives →

13. 13
    Deliveryman.ai▲186

    Cold email infrastructure on autopilot without Gsuite

    Jun 2026 · deliveryman.ai · its alternatives →

14. 14
    Mailflow▲267

    Run your business from Gmail

    2020 · its alternatives →

15. 15
    Listmonk 1.0▲110

    Self-hosted newsletter and mailing list manager

    2021 · its alternatives →

16. 16
    Mailr - AI Email Writer▲133

    Write and reply to emails using ChatGPT

    2023 · its alternatives →

17. 17
    AI Emaily▲165

    Your AI inbox that writes like you + replies on autopilot

    Jul 2026 · aiemaily.com · its alternatives →

18. 18
    Emailgurus - Open Source▲111

    Keep your Gmail inbox focused on people you know

    2022 · its alternatives →

19. 19
    AI Email Writer by Mailmeteor▲119

    The AI email writer that Google wishes they built

    2024 · chromewebstore.google.com · its alternatives →

20. 20
    EmailEngine▲165

    Access any email account to receive/send emails with an API

    2021 · its alternatives →

21. 21
    Mailyr▲101

    Just type a few words, and let ChatGPT do the rest.

    2023 · its alternatives →

22. 22
    Auto Gmail▲82

    Let AI draft answers to all your inbound emails

    2023 · its alternatives →

23. 23
    Mail Mint▲124

    Effortless WordPress email marketing automation for funnels

    2023 · its alternatives →

24. 24
    Bloom▲77

    Email opt-in and lead generation plugin for WordPress

    2017 · 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 →