Growth · alternatives · 2026
24 alternatives to Transactional SMTP server
The best idea to grow better
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Transactional SMTP server launched in 2021; newer entries below may have overtaken it.
- 1
Automate forwarding all your Gmail emails to another email
2019 · chromewebstore.google.com · its alternatives →
- 2
Mailmeteor▲567Send hundreds of personalized emails with Gmail.
2019 · mailmeteor.com · its alternatives →
- 3
Daily Sender▲65Send emails to unlimited subscribers with one click.
2020 · dailysender.com · its alternatives →
- 4
1,000+ Emails per Second with 99%+ Deliverability
Mar 2026 · mailercloud.com · its alternatives →
- 5
- 6
Pigeon Mail▲126Send hundreds of personalised emails from Gmail
2021 · pigeonmail.co · its alternatives →
- 7
Mail Wave▲17Send 10,000 emails for just $1 Full Reliability.
2025 · kaizen-apps.com · its alternatives →
- 8
Unosend▲205Send transactional + marketing email w/ 99.9% deliverability
Dec 2025 · unosend.co · its alternatives →
- 9
Adios.ai▲169Stop email interruptions, receive emails 3 times a day
2018 · adios.ai · its alternatives →
- 10
Minutemailer▲80Create and send beautiful newsletters in minutes
2023 · minutemailer.com · its alternatives →
- 11
- 12
- 13
Adiós brings your emails into your inbox just 3 times a day, so you can get sh*t done.
2018 · adios.ai · its alternatives →
- 14
Send personalized mass emails directly from Google Sheets
2022 · merge.email · its alternatives →
- 15
A free service to send transactional emails through Gmail
2022 · gmass.co · its alternatives →
- 16
- 17
Send unlimited cold emails from 1 account with no warm-up
2024 · gmass.co · its alternatives →
- 18
DotMail▲14Transform one Gmail into unlimited email addresses
2025 · dotmail.replit.app · its alternatives →
- 19
- 20
Email on your own domain. $9 a year, unlimited mailboxes
Sep 2026 · franklymail.com · its alternatives →
- 21ML
Last week, I spammed my users with emails by mistake. I had written an idempotent method to do a transaction and send a confirmation email. I didn't realize the email call is not idempotent. So, when the transaction failed, it retried again and again and spammed the entire user base with emails. I was so embarrassed and wrote an API layer on top of my email delivery service (SendGrid) to ensure that my users won't get more than 1 email per day, irrespective of my architecture or mistakes. I am publishing it as a public API, in case anyone else needs it:…
2019 · its alternatives →
- 22
Limit the marketing emails you send to a user to 1 per day ✋
2019 · its alternatives →
- 23
BaseMailer ▲18Design & send personalized bulk emails from Airtable.
Jan 2026 · basemailer.app · its alternatives →
- 24
Multi-domain email, transactional email API, and MCP agents.
Aug 2026 · purpletoadmail.com · its alternatives →
Also compare
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 →