Life & fun · alternatives · 2026

24 alternatives to Flowmailer

The email delivery platform you can rely on

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Flowmailer launched in 2020; newer entries below may have overtaken it.

1. 1
   Sender▲297

   Super easy and affordable email marketing platform

   2021 · sender.net · its alternatives →

2. 2
   Superflows▲476

   AI assistant for email - get to inbox zero faster

   2023 · superflows.ai · its alternatives →

3. 3
   Mailercloud Email API Platform▲165

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

   Mar 2026 · mailercloud.com · its alternatives →

4. 4
   Mailerr▲119

   Automated Infrastructure for boosting Cold Email Delivery

   2025 · mailerr.co · its alternatives →

5. 5
   Sidemail 2.0▲306

   Hi all! I'm Kristyna, maker of Sidemail. I'd love to share with you what we've been building. We built Sidemail because sending emails from a SaaS app was way harder than it should be. Sidemail is made for developers and teams that want one simple place to handle SaaS emails with reliable delivery and no bloat. It has: - Everything for creating, managing and delivering SaaS emails in one platform, - Easy-to-use email API for sending password resets, receipts, etc. - Messenger for writing product updates and newsletters, - Email automations for onboarding and lifecycle flows, - Fast email…

   Nov 2025 · sidemail.io · its alternatives →

6. 6
   MailAdept by mailwarm▲274

   AI Agents & Email deliverability experts on your team

   Jul 2026 · mailadept.com · its alternatives →

7. 7
   Forage Mail▲306

   AI that solves email overwhelm. Not another mail app.

   2025 · foragemail.com · its alternatives →

8. 8
   MailTester.AI▲327

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

   2025 · mailtester.ai · its alternatives →

9. 9
   MailerSend▲305

   Better transactional emails for teams.

   2020 · its alternatives →

10. 10
    Mail Tester▲309

    Test the spamminess of your email

    2016 · mail-tester.com · its alternatives →

11. 11
    Minute Mailer▲221

    Mailchimp + Buffer in one simple platform.

    2015 · minutemailer.com · its alternatives →

12. 12
    MailerLite▲290

    Intuitively-designed email marketing and website tools

    2014 · mailerlite.com · its alternatives →

13. 13
    Mailercloud▲257

    Automate, optimize, convert, next level email automation

    2024 · mailercloud.com · its alternatives →

14. 14
    MailerCheck 2.0▲145

    All-in-one email deliverability platform for businesses

    2023 · mailercheck.com · its alternatives →

15. 15
    Mailercloud▲203

    Launch successful email campaigns like a pro

    2022 · mailercloud.com · its alternatives →

16. 16
    Mailazy▲203

    Cloud email infrastructure for the internet

    2022 · mailazy.com · its alternatives →

17. 17
    Bouncebuster▲162

    Real-time email verifier

    2021 · bouncebuster.io · its alternatives →

18. 18
    Deliveryman.ai▲186

    Cold email infrastructure on autopilot without Gsuite

    Jun 2026 · deliveryman.ai · its alternatives →

19. 19
    BaseMailer▲12

    Give your emails superpowers.

    2020 · basemailer.com · its alternatives →

20. 20
    SMTP Express▲17

    All-in-one email infrastructure for modern products & teams

    2025 · ensend.co · its alternatives →

21. 21
    [Sending]flow▲191

    All-in-one Webflow email autoresponder

    2024 · sendingflow.app · its alternatives →

22. 22
    Maileroo▲118

    Transactional email delivery

    2023 · maileroo.com · its alternatives →

23. 23
    Sender SMS▲151

    Effortless and affordable SMS marketing platform

    2021 · sender.net · 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 →