Alternatives

Products that do what Mailer – our in-house tool for sending email from the command line does

1PA
Postman – A command-line utility for batch-sending email▲48
2014 · github.com
2SA
Screenr – Automated Workflow for Your Email▲118
2020 · feval.ca
3
MailMentor▲162
A data driven approach to writing better email
2015
4
Mailerr▲119
Automated Infrastructure for boosting Cold Email Delivery
2025
5
mailX by mailwarm▲602
Email deliverability toolkit for humans and AI agents
May 2026 · themailx.com
6CB
Console based email client with Lua scripting▲78
2017 · lumail.org
7
Seer▲98
Making emails actionable.
2014
8ET
Easy-to-use curl command to send email notifications▲107
2018 · curlmail.co
9
Mailr - AI Email Writer▲133
Write and reply to emails using ChatGPT
2023
10MA
Mailbrew – Automated Email Digests from HN, RSS, Reddit, Twitter▲114
2020 · mailbrew.com
11
Mailcloud▲110
A New Way to Email
2014
12CU
Cypht – Unique Open Source Webmail▲110
2016 · cypht.org
13AS
A self-hosted email engine▲149
2020 · mailcoach.app
14CE
Candymail – Email Automation for Node.js▲86
2020 · saasbase.dev
15HS
Heimdall – Self-managed email alias/forwarding service▲130
2020 · github.com
16MS
Maildown – Super Simple Email API▲98
2019 · github.com
17RM
Red Mail – Advanced email sender for Python▲9
2022 · github.com
18ES
email - Send emails easily in Go▲69
2014 · github.com
19SO
Switchboard – open-source email processing in Erlang▲92
2014 · switchboard.spatch.co
20YE
Your Email Assistant in the Cloud▲22
2012 · tray.io
21AC
A console-based email client with fully integrated Lua scripting▲6
2015 · github.com
22PM
Planleaf – Manage tasks completely over email▲76
2014 · planleaf.com
23CA
Caspy – AI Assistant for Emails▲45
2017 · caspy.com
24MS
Maildown – super simple email API▲40
2020 · maildown.dev

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