✉️ Send e-mails with Node.JS – easy as cake!
Nodemailer is a module for Node.js applications to allow easy as cake email sending. The project got started back in 2010 when there was no sane option to send email messages, today it is the solution most Node.js users turn to by default.
The new email API for developers.
Build, test, and send transactional emails at scale. Resend provides the best developer experience helping you reach users instead of spam folders.
Dovel is a SMTP server that sends and receives emails acording to a simple configuration file. It also comes with an optional web interface that you can use to browse your emails. It is designed to be simple and easy to use, and will remain so. Dovel is great because:
A Go web application to generate email signatures and host uploaded images with S3.
GoMailMark allows users to enter information about them, uploads given images to S3, and generates an HTML signature using Templ.
Simple and modern email sending library
Universal interface for emailing across runtimes.
Upyo is a simple and cross-runtime library for sending email messages using SMTP and various email providers. It works on Node.js, Deno, Bun, and edge functions.
Collecto is a open-source, self-hosted, lightweight, email collection service. It allows to add forms to static web sites. The form content are sent by email on submit.
Plauna is a privacy focused service that helps you categorize your e-mails. All of its data is stored only on your computer.
You can parse your e-mails from mbox files or directly by connecting to your IMAP servers. Plauna helps you categorize your e-mails and automates the process so that incoming e-mails are moved to their respective folders on your IMAP server.
Become a leader in email innovation. JMAP is the developer-friendly, open API standard for modern mail clients and applications to manage email faster.
It’s official! JMAP has been published by the Internet Engineering Task Force (IETF).
A fast, highly extensible, and event driven SMTP server. Haraka is a highly scalable node.js email server with a modular plugin architecture. Haraka can serve thousands of concurrent connections and deliver thousands of messages per second. Haraka and plugins are written in asynchronous JS and are very fast.
A modern, fast web-mail client with user-friendly encryption and privacy features. 100% Free and Open Source software
disposable email server with an easy setup.
Whenever you sign up with your email on a website, your email address is stored and sometimes sold to advertisers. This is where you get your bulk of spam emails. Whenever a data breach happens, you also risk having your primary email address leaked and informations stolen.
Using Nortix Mail, you can create disposable email addresses that can be used to sign up to website that requires email verification. This is very useful when you just want to try out new website / services without giving away your real email address. It significantly enhances privacy, security and reduces spam. It's like running your own Gmail server.
Newsletters spam test. Test the Spammyness of your Emails.
MJML is a markup language designed to reduce the pain of coding a responsive email. Its semantic syntax makes it easy and straightforward and its rich standard components library speeds up your development time and lightens your email codebase. MJML's open-source engine generates high quality responsive HTML compliant with best practices.
Production-ready fullstack but simple mail server (SMTP, IMAP, LDAP, Antispam, Antivirus, etc.) running inside a container.
docker-mailserver, or DMS for short, is a production-ready fullstack but simple mail server (SMTP, IMAP, LDAP, Anti-spam, Anti-virus, etc.). It employs only configuration files, no SQL database. The image is focused around the slogan "Keep it simple and versioned".
muchsync synchronizes notmuch mail across machines.
muchsync brings notmuch to all of your computers by synchronizing your mail
messages and notmuch tags across machines.
The protocol uses pipelines to work efficiently over high-latency networks
such as mobile broadband.
EmailEngine is an email client but for apps, not people.
Effortless email integration for your app or service. Simplify IMAP and SMTP complexities, and focus on what truly matters. Build better features, faster.
Self-hosted solution for developers and businesses.
Quickly create responsive HTML emails that work on any device & client. Even Outlook.
AI Powered Email, Built to Save You Time Zero is an AI-native email client that manages your inbox, so you don't have to.
Zero is an open-source AI email solution that gives users the power to self-host their own email app while also integrating external services like Gmail and other email providers. Our goal is to modernize and improve emails through AI agents to truly modernize emails.
Own-Mailbox is a personal email server you can run in your own home, with strong privacy protection measures integrated at its core. It provides self-hosted email addresses, or connects with your existing email address. In both cases, you can seamlessly send and receive encrypted emails from anywhere in the world, through the Own-Mailbox webmail interface, through a smartphone app, or using external email software (such as Thunderbird or Outlook).
mailcow: dockerized is an open source groupware/email suite based on docker.
mailcow relies on many well known and long used components, which in combination result in an all around carefree email server.
Related contents:
✉️ Open-Source Email API for Developers. Self-hosted Alternative to SES, Mailgun, SendGrid.
Hyvor Relay is a self-hosted, open-source email API for developers. It uses SMTP to send emails using your own infrastructure. It is designed to be simple to self-host, easy to manage and observe, and powerful enough to send millions of daily emails.
Stop trying to avoid phishing. Choose a weapon and fight it...
PhishTool gives human analysts the power to reverse engineer phishing emails, to better defend against them. PhishTool is to phishing emails as a disassembler is to malware or a forensic toolkit is to file systems.
Archive a lifetime of email and chat. Offline search, analytics, and AI query over your full message history. Powered by DuckDB.
Your messages are yours. Decades of correspondence, attachments, and history shouldn't be locked behind a web interface or an API. msgvault downloads a complete local copy and then everything runs offline. Search, analytics, and the MCP server all work against local data with no network access required.
Currently supports Gmail, with WhatsApp and other messaging platforms planned.
Related contents:
email & SMTP testing tool with API for developers.
Mailpit is a small, fast, low memory, zero-dependency, multi-platform email testing tool & API for developers. It acts as an SMTP server, provides a modern web interface to view & test captured emails, and contains an API for automated integration testing.
Zammad is a web-based, open source user support/ticketing solution.
Zammad is a web based open source helpdesk/customer support system with many features to manage customer communication via several channels like telephone, facebook, twitter, chat and e-mails.
complete mail server SMTP + IMAP + POP3 + Antispam + Antivirus Web administration + Web email ...on your server in ~5 minutes
Your email html code goes right here. What is fractal?
A simple HTML and CSS Validator for email designers and marketers.
Simple, modern & fast web-based email client.
Modest system requirements, decent performance, simple installation and upgrade, no database required - all these make RainLoop Webmail a perfect choice for your email solution.
web based administration interface for Postfix mail servers.
iRedMail - Free, Open Source Mail Server Solution
An automated phishing tool with 30+ templates. This Tool is made for educational purpose only ! Author will not be responsible for any misuse of this toolkit !
Related contents:
A comprehensive solution for archiving, searching, and exporting emails.
Mail-Archiver is a web application for archiving, searching, and exporting emails from multiple accounts. Featuring folder sync, attachment support, mailbox migration and a dashboard.
OfflineIMAP downloads mailbox(es) to a local Maildir(s), and synchronizes both sides via IMAP. This allows reading the mails while offline without the need the mail reader (MUA) to support disconnected operations.
Production-ready fullstack but simple mail server (SMTP, IMAP, LDAP, Antispam, Antivirus, etc.) running inside a container. Only configuration files, no SQL database. Keep it simple and versioned. Easy to deploy and upgrade. Documentation via MkDocs.
Build HTML emails faster than you can say "Outlook".
If you know Bootstrap, you know Bootstrap Email. Ever wish you could just write HTML emails with Bootstrap and have it actually work? Well now you can. Inspired by syntax you know and love you can write simpler code and compile it so it works in every email client.
Free Email Forwarding. Custom Domain Emails.
Related contents:
Secure, Open-source Email Archiving for Data Sovereignty. Your Secure, Sovereign Email Archive.
Open Archiver is a self-hosted, open-source platform for archiving, searching, and managing your emails. Take control of your digital communication history, free from vendor lock-in.
rotation and revocation of DKIM keys.
dkim-rotate is a tool for managing DKIM (email antispam) keys in a manner that avoids unnecessarily making emails nonrepudiable.
Broadly, dkim-rotate intends to weaken the non-deniable authenticity of leaked and archived emails, while still retaining DKIM’s antispam function. For more discussion of the problem, and the chosen solution, see dkim-rotate(7), and Matthew Green’s article Ok Google: please publish your DKIM secret keys.
Patterns for Responsive HTML Email Templates.
A few simple, but solid patterns for responsive, accessible HTML email in (almost) every email client.
Postfix Greylisting Policy Server
Postgrey is a Postfix policy server implementing greylisting developed by David Schweikert.
When a request for delivery of a mail is received by Postfix via SMTP, the triplet CLIENT_IP / SENDER / RECIPIENT is built. If it is the first time that this triplet is seen, or if the triplet was first seen, less than 5 minutes ago, then the mail gets rejected with a temporary error. Hopefully spammers or viruses will not try again later, as it is however required per RFC.
HookPhish is a Python script designed to aid in the detection of phishing websites. It performs various checks on suspected URLs to identify potential threats.
Open source push technology.
Z-Push is an open-source application to synchronize ActiveSync compatible devices such as mobile phones, tablets and Outlook 2013 and above. With a history of over 9 years of successful synchronization with multiple backends Z-Push is the leading open source push synchronization.
Best Email Signature Manager for Outlook & Office 365.
Design and deploy on-brand email signatures for your whole team. Connect with your audience in a way that's on-brand and personal, while driving quality lead generation.
A lightweight, high-performance Rust email archiver with WebUI.
Bichon is a minimal, high-performance, standalone Rust email archiver with a built-in WebUI. Its name is inspired by the puppy my daughter adopted last month. It runs as a single binary, requires no external dependencies, and provides fast, efficient email archiving, management, and search.
Related contents:
A versatile easy to use virtual appliance to protect you from spam
The idea about eFa is to create a (virtual) appliance for spam fighting using open-source tools. We try to combine existing open-source projects into one easy to use and fast to deploy (virtual) appliance.
eFa is a community based product, we try to create the best possible spam filter product out there based on existing open-source software. See the about page to find out which existing project we use to combine, tune and support to create one great appliance.
Authenticated Email for AI Agents. Give your agent an email address. In under two minutes.
Anyone can send an email, so your agent should have one. No mail server. No public URL. Free.
Authenticated email gateway for AI agents — SPF/DKIM verified inbound, HMAC-signed delivery, webhook + WebSocket fan-out, CLI + SDKs
Modern Webmail Client for Stalwart Mail Server.
Webmail built for the 21st Century. A modern, self-hosted email client for Stalwart Mail Server powered by the JMAP protocol. Email, calendar, contacts and files. Fast, private, and open source.
the most popular DMARC tools on the market, covering every aspect of DIY domain protection.
💌 Build and send emails using React.
A collection of high-quality, unstyled components for creating beautiful emails using React and TypeScript.
Related contents:
🕵️♂️ (2-in-1) Email & Username OSINT suite. Analyzes 205+ scan vectors (100+ email / 105+ username) for security research, investigations, and digital footprinting.
The ultimate tool for finding a unique username across GitHub, X, Reddit, Instagram, and more in a single command.
The next generation Web development environment
Install your PHP/Node.js Web development environment in just 3 minutes, with no dependencies and non-intrusive. It includes web server, databases, email, DNS & common tools — everything you need for development.
Turn-key Outreach Infrastructure
Get your email outreach deliverability managed by experts for scalable, sustainable, sales success. Lightmeter is a sales-only email delivery network, independent of Google, Microsoft and SendGrid. Built on our own unique mailserver product.
OAuth credential MAnager.
Many IMAP/SMTP clients, like msmtp, fdm, isync, aerc, neomutt or mutt can use OAuth2 access tokens but lack the ability to renew and/or authorize OAuth2 credentials. The purpose of oama is to provide these missing capabilities by acting as a kind of smart password manager. In particular, access token renewal happens automatically in the background transparent to the user.
Related contents:
Send Email Directly From Your Code. No server code needed. Focus on things that matter
Script PHP pour générer & pourquoi pas héberger des emails jetables / poubelles. Vous pourrez ainsi facilement gérer vos adresses de redirections temporaires.