Life & fun · alternatives · 2026

24 alternatives to Mailer – our in-house tool for sending email from the command line

Mailer is a command-line tool for sending emails directly from the terminal. Developed as an in-house utility and released in 2015, it's designed for developers and system administrators who prefer working in the… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Mailer – our in-house tool for sending email from the command line launched in 2015; newer entries below may have overtaken it.

1
Emailer▲2
A Go client to send emails from Command Line.
2019 · github.com · its alternatives →
2
Sender▲297
Super easy and affordable email marketing platform
2021 · sender.net · its alternatives →
3ET
Easy-to-use curl command to send email notifications▲107
2018 · curlmail.co · its alternatives →
4
Mailerr▲119
Automated Infrastructure for boosting Cold Email Delivery
2025 · mailerr.co · its alternatives →
5
Mail Tester▲309
Test the spamminess of your email
2016 · mail-tester.com · its alternatives →
6
MailerSend▲305
Better transactional emails for teams.
2020 · its alternatives →
7
mailX by mailwarm▲596
Email deliverability toolkit for humans and AI agents
May 2026 · themailx.com · its alternatives →
8
Screenr – Automated Workflow for Your Email▲118
2020 · feval.ca · its alternatives →
9
Sendster AI▲96
AI enabled newsletter software for Amazon SES, SMTPs
2023 · getsendster.in · its alternatives →
10
Postman – A command-line utility for batch-sending email▲48
CLI tool for batch-sending email via any SMTP server. - zachlatta/postman
2014 · github.com · its alternatives →
11
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 →
12
Mailbox for Mac (Beta)▲490
Fly through your email. Now on Mac
2014 · theverge.com · its alternatives →
13
MailTester.AI▲327
Forward an email and get an AI deliverability report in 30s
2025 · mailtester.ai · its alternatives →
14
Mailbird for Mac▲373
Email the way you like it, now on Mac
2024 · getmailbird.com · its alternatives →
15
Inboxer▲212
A clean, open-source desktop client for Google Inbox 💌
2018 · denysdovhan.com · its alternatives →
16
Mailercloud▲257
Automate, optimize, convert, next level email automation
2024 · mailercloud.com · its alternatives →
17
Mailr - AI Email Writer▲133
Write and reply to emails using ChatGPT
2023 · mailr-ai.com · its alternatives →
18
Mailman▲413
A fix to "OMG, so many emails!"
2020 · mailmanhq.com · its alternatives →
19
Mailmeteor 2.0▲290
Send auto follow-up emails with Gmail
2022 · mailmeteor.com · its alternatives →
20
MailerLite▲290
Intuitively-designed email marketing and website tools
2014 · mailerlite.com · its alternatives →
21
Mailer▲7
A lightweight development SMTP server
2025 · iev.gumroad.com · its alternatives →
22
Mail Helper▲73
Helps you write emails better
2023 · apps.apple.com · its alternatives →
23
Send Emails from Your Terminal▲32
One of my favorite developer tool companies in the world is Charm. So I was blown away when they said they were rethinking how email could be sent using the terminal. Pop is a Text-based User Interface (TUI) that allows you to send emails without having to switch context from your command-line interface. Here's why I'm obsessed with Pop: 1. You can write an email body with AI 2. You can easily install using Homebrew 3. You can do some really powerful stuff like generating a PDF and sending an invoice via email entirely from the command line The email sending part is taken care by Resend,…
2023 · github.com · its alternatives →
24
EasyEmail▲227
Gmail plug-in that helps you write emails quickly
2018 · easyemail.ai · its alternatives →

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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 →