Dev tools · alternatives · 2026

24 alternatives to Thunder Mail

Cheap and simple transactional emails API with Amazon SES

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Thunder Mail launched in 2018; newer entries below may have overtaken it.

1. 1
   Maillayer▲462

   Send email campaigns via Amazon SES with NoCode

   2024 · maillayer.com · its alternatives →

2. 2
   SendMails.io▲7

   Email Marketing & Automation Platform

   2024 · sendmails.io · its alternatives →

3. 3
   Greenmor Mail▲212

   One inbox. Outreach, team chat, AI, and video — built in.

   2025 · greenmormail.com · its alternatives →

4. 4
   Sendy 4▲212

   Send newsletters, 100x cheaper via Amazon SES

   2019 · sendy.co · its alternatives →

5. 5
   SendingBee 2.0▲88

   Send up to 62,000 newsletters for free every month

   2020 · honzik.cloudflareaccess.com · its alternatives →

6. 6
   Send With SES▲129

   Send Emails, SMS & push notifications via your AWS Account

   2020 · sendwithses.com · its alternatives →

7. 7
   ValidateFast▲126

   Launch better & faster, forever

   2024 · validatefast.app · its alternatives →

8. 8
   Flight Mail▲56

   Send more, spend less!

   2025 · flightmail.app · its alternatives →

9. 9
   Unosend▲205

   Send transactional + marketing email w/ 99.9% deliverability

   Dec 2025 · unosend.co · its alternatives →

10. 10
    Mailercloud Email API Platform▲165

    1,000+ Emails per Second with 99%+ Deliverability

    Mar 2026 · mailercloud.com · its alternatives →

11. 11
    LetsNews.app▲69

    Mailtrain hosting. Send newsletters cheaper via Amazon SES

    2020 · its alternatives →

12. 12HW
    https://www.markdownmail.io – Bulk newsletter sender using Amazon SES▲18

    We recently launched a new project called https://www.markdownmail.io The motivations behind https://www.markdownmail.io was that we wanted to be able to occasionally send out an email to our user base. Currently we have over 100k subscribers and on average send an email once every other month. With the mailchimp it was costing us $475 per month. That's a lot of money to send an occasional newsletter. So we started to look for alternatives. We decided to move to sendy.co which is self hosted and uses SES. Whilst the costs where lower we found the product unstable and…

    2014 · its alternatives →

13. 13
    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 →

14. 14
    MailGet▲124

    Super affordable Email marketing via Amazon SES

    2016 · formget.com · its alternatives →

15. 15
    Thunderbird 115 Supernova▲175

    Make email easier

    2023 · thunderbird.net · its alternatives →

16. 16
    Emailkick▲182

    Simple email designer and API for AWS SES users

    2022 · emailkick.com · its alternatives →

17. 17
    MeowMail▲103

    Send Emails like Social Media, with 98% Inbox Deliverability

    2024 · apps.shopify.com · its alternatives →

18. 18
    Email Thunder▲9

    Turn AI-Powered Emails Into Revenue – In Minutes

    2025 · its alternatives →

19. 19
    Mail for Good▲8

    Open source Email marketing tool by freeCodeCamp

    2017 · github.com · its alternatives →

20. 20
    Email ROI Calculator▲79

    Check profitability of your email marketing campaigns

    2021 · didoagency.com · its alternatives →

21. 21
    Mailblast▲218

    Email marketing on a budget using Amazon SES

    2017 · mailblast.io · its alternatives →

22. 22
    BullMailer▲91

    Email marketing for Freelancers & Small Business

    2018 · its alternatives →

23. 23
    Email Kick▲76

    Email designer and analytics for your transactional emails.

    2020 · emailkick.com · its alternatives →

24. 24
    Grab Digital▲76

    Unlimited branded, ready-to-send emails at $499 per month

    2020 · grabdigital.co · 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 →