Everyone knows what an email address is, right?
Decide if each email address is valid or not. I used the email-addresses library to verify against the relevant RFCs. Enjoy.
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.
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Alpine is a free software email client developed at the University of Washington. Alpine is a rewrite of the Pine Message System that adds support for Unicode and other features. Alpine is meant to be suitable for both inexperienced email users and the most demanding of power users. Alpine can be learned by exploration and the use of context-sensitive help. The user interface can be customized.
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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.
An Open-Source MailServer, NewsLetter, Email Marketing Solution.
BillionMail gives you open-source MailServer, email marketing — fully self-hosted, dev-friendly, and free from monthly fees.
Email Validation API. Block Fake Users. Stop Disposable Emails from Creating Spam Accounts.
UserCheck identifies and blocks fake email addresses. So you can focus on real users.
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.
tail -f your gmail.
A command-line tool to monitor Gmail messages and output them as JSON, designed for automation, monitoring, and integration with other tools.
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Index your Gmail account to a SQLite DB and play with the data.
This is a script to download emails from Gmail and store them in a SQLite database for further analysis. I find it extremely useful to have all my emails in a database to run queries on them. For example, I can find out how many emails I received per sender, which emails take the most space, and which emails from which sender I never read.
Open-source editor for crafting emails.
Maily is a free and open-source editor that makes it hassle-free to craft beautiful emails . It comes with a set of pre-built components and opinionated design that you can use to build your emails.
Free Email Forwarding. Custom Domain Emails.
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The free and open source email and collaboration software .
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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:
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.
All your E-mail, from all your accounts, in one place
Cypht (pronounced "sift") is like a news reader, but for E-mail. Cypht does not replace your existing accounts - it combines them into one. And it's also a news reader.
Cypht: Lightweight Open Source webmail aggregator [PHP, JS]. Supports IMAP/SMTP, JMAP and EWS (Exchange Web Services)
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.
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An open-source incident management tool supporting multi-channel alerting, customizable messages, and on-call integrations.
modern, secure, all-in-one mail server.
For sending and receiving email. With support for IMAP4, SMTP, SPF, DKIM, DMARC, MTA-STS, DANE and DNSSEC, reputation-based and content-based junk filtering, Internationalization (IDNA), automatic TLS with ACME and Let's Encrypt, account autoconfiguration, webmail.
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.
A completely free and open source email validation API that never stores your data. Built to support solopreneurs and the developer community.
A high-performance, cost-effective email validation service designed for indie hackers and small startups. The service validates email addresses in real-time, checking syntax, domain existence, MX records, and detecting disposable email providers. The main focus is on precision instead of recall, meaning instead of edge cases the focus is on having the biggest coverage.
AI you can trust
Easily summarize emails, docs, articles, and videos across the web — without sacrificing your privacy
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💌 Free, Open Source HTML Email Editor and Designer. Free, open source, HTML email template editor and no code designer.
Bring Back YouTube Email Notifications! YouTube upload email notification replacement
In August 2020, YouTube removed the feature of sending email notifications when a subscriber uploads a video. Many watchers, myself included, prefer email notifications to app notifications. This project aims to provide a replacement to YouTube's email notifications. Running this small program checks all your subscribers and sends emails with the links to new videos.
Email parser for browser and serverless environments.
postal-mime is an email parsing library that runs in browser environments (including Web Workers) and serverless functions (like Cloudflare Email Workers). It takes in a raw email message (RFC822 format) and outputs a structured object containing headers, recipients, attachments, and more.
Automate and clean your inbox. Clean Up Your Inbox In Minutes.
Bulk unsubscribe from newsletters, automate your emails with AI, block cold emails, and view your analytics. Open-source.
Is a Dockerized email campaign management application that allows users to create templates, manage contact lists, and send HTML-based emails via SMTP. It includes features to simplify email marketing campaigns and integrates seamlessly with a MySQL database for managing data.
GooBook allows to use Google Contacts from
the command-line and from MUAs such as mutt.
mutt-wizard is a tool that automatically sets up a NeoMutt-based minimal
email system.
It configures mutt and isync with a default interface and safe passwords.
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.
getmail 6 is a flexible, extensible mail retrieval system with support for POP3, IMAP4, SSL variants of both, maildirs, mboxrd files, external MDAs, arbitrary message filtering, single-user and domain-mailboxes, and many other useful features.
Lieer is a fast email-fetching, sending,
and two-way tag synchronization between notmuch and GMail.
This program can pull, and send, email and labels (and changes to labels)
from your GMail account and store them locally in a maildir with the labels
synchronized with a notmuch database.
The changes to tags in the notmuch database may be pushed back remotely to
the GMail account.
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.
thread-based email index, search and tagging.
Notmuch is a system for indexing, searching, reading, and tagging large collections of email messages in maildir or mh format. It uses the Xapian library to provide fast, full-text search with a convenient search syntax.
CLI to manage emails, based on email-lib.
Pimalaya is an ambitious project that aims to improve open-source tools related to Personal Information Management (as known as PIM) which includes emails, contacts, calendars, tasks and more.
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.
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.
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.
disposable email server with 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.
Signal Spam is a non-profit association that allows Internet users to report anything they consider to be spam in their email. Reports are assigned to authorities or professionals who are able to take action against this spam.
Save hours on written communication at work Write emails, Slack replies, Jira tickets, proofread, chat with documents...
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.
web based administration interface for Postfix mail servers.
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.
Open Source email server
Regain your independence and protect your privacy by installing your own email server. It takes less than 10 minutes!
Modoboa is a mail hosting and management platform including a modern and simplified Web User Interface. It provides useful components such as an administration panel and webmail.
Virtual Mailbox Administration.
The ViMbAdmin project (vim-be-admin) provides a web based virtual mailbox administration system allowing mail administrators to manage domains, mailboxes and aliases.
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.
Open Source Email Newsletters Easy & Reliable.
Keila is an Open Source alternative to newsletter tools like Mailchimp or Sendinblue. With Keila you can easily send out newsletter campaigns and create sign-up forms.
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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.
✉️ 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.
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.
Send emails with Ferdinand. An open-source email delivery service.
Open-source email delivery service for developers.
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.
Plunk is an open-source email platform built on top of AWS SES. It allows you to easily send emails from your applications. It can be considered as a self-hosted alternative to services like SendGrid, Resend or Mailgun.
Server-side email notification manager using several push providers for real-time alerts. Conserve mobile battery without compromising on immediacy.
Stay connected without the constant drain on your battery. Introducing NotiMail - the future of server-side email notifications supporting multiple push providers and multiple email accounts!
Mobile devices often use IMAP IDLE, maintaining a persistent connection to ensure real-time email notifications. Such continuous connections rapidly consume battery power. The modern era demanded a smarter, more energy-efficient solution. Meet NotiMail.
Welcome to the "Learn and Test DMARC" console! Here, you'll get a visual breakdown of how email servers communicate, giving you a better understanding of SPF, DKIM, and DMARC and how they work together.
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Open DMARC Analyzer is an Open Source DMARC Report Analyzer to be used with DMARC reports that have been parsed by John Levine's rrdmarc script or techsneeze's dmarcts-report-parser.
Open source DMARC report analyzer and visualizer