Dev tools · alternatives · 2026

24 alternatives to Mailer

A lightweight development SMTP 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
   Sender▲297

   Super easy and affordable email marketing platform

   2021 · sender.net · its alternatives →

2. 2
   Mail Tester▲309

   Test the spamminess of your email

   2016 · mail-tester.com · its alternatives →

3. 3
   MailerSend▲305

   Better transactional emails for teams.

   2020 · its alternatives →

4. 4MO
   Mailer – our in-house tool for sending email from the command line▲21

   2015 · dirwiz.com · its alternatives →

5. 5
   A program to email log files using Go▲43

   Log mailer is a program I made to email log files. - muhammadmuzzammil1998/Log-mailer

   2018 · github.com · its alternatives →

6. 6
   Debug Mail▲194

   Easy-to-use mail server for developers

   2022 · debugmail.io · its alternatives →

7. 7
   Mailerr▲119

   Automated Infrastructure for boosting Cold Email Delivery

   2025 · mailerr.co · its alternatives →

8. 8
   Mailr - AI Email Writer▲133

   Write and reply to emails using ChatGPT

   2023 · mailr-ai.com · its alternatives →

9. 9
   MailTester.AI▲327

   Forward an email and get an AI deliverability report in 30s

   2025 · mailtester.ai · its alternatives →

10. 10
    MailerLogic▲96

    Email API with built-in deliverability intelligence

    Apr 2026 · mailerlogic.com · its alternatives →

11. 11
    Sender SMS▲151

    Effortless and affordable SMS marketing platform

    2021 · sender.net · its alternatives →

12. 12
    Minute Mailer▲221

    Mailchimp + Buffer in one simple platform.

    2015 · minutemailer.com · its alternatives →

13. 13
    Inboxer▲212

    A clean, open-source desktop client for Google Inbox 💌

    2018 · denysdovhan.com · its alternatives →

14. 14
    MailDeveloper▲162

    Advanced editor for responsive HTML emails

    2015 · maildeveloper.com · its alternatives →

15. 15
    Mailercloud▲257

    Automate, optimize, convert, next level email automation

    2024 · mailercloud.com · its alternatives →

16. 16
    The Letter Sender▲88

    Send a message to anyone, anywhere, on anything.

    2016 · thelettersender.com · its alternatives →

17. 17
    Flowmailer▲63

    The email delivery platform you can rely on

    2020 · spotler.com · its alternatives →

18. 18
    Mail Helper▲73

    Helps you write emails better

    2023 · apps.apple.com · its alternatives →

19. 19
    Swifter▲161

    Email subject line generator for B2B & B2C, built with GPT-3

    2021 · its alternatives →

20. 20
    BaseMailer▲12

    Give your emails superpowers.

    2020 · basemailer.com · its alternatives →

21. 21
    Mailazy▲203

    Cloud email infrastructure for the internet

    2022 · mailazy.com · its alternatives →

22. 22
    Mailercloud Email API Platform▲165

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

    Mar 2026 · mailercloud.com · its alternatives →

23. 23
    Kingmailer▲6

    Transactional SMTP Service

    2017 · kingsmtp.com · its alternatives →

24. 24
    AraMailer▲79

    Powerful email marketing software to get more sales & clicks

    2021 · 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 →