Repositories (1557)
The open-source notification infrastructure. In-app Inbox component, E-mail, SMS, Push and Slack Integrations.
Free and Open Source Enterprise Resource Planning (ERP)
😱 Falsehoods Programmers Believe in
:love_letter: An extensible desktop mail app built on the modern web. Forks welcome!
The classic email sending library for PHP
💌 Build and send emails using React
MJML: the only framework that makes responsive-email easy
✉️ Send e-mails with Node.JS – easy as cake!
:love_letter: A beautiful, fast and fully open source mail client for Mac, Windows and Linux.
Mail-in-a-Box helps individuals take back control of their email by defining a one-click, easy-to-deploy SMTP+everything else server: a mail server in...
BillionMail gives you open-source MailServer, NewsLetter, Email Marketing — fully self-hosted, dev-friendly, and free from monthly fees. Join the dis...
A free simple responsive HTML email template
Thunderbird for Android – Open Source Email App for Android (fka K-9 Mail)
🧑🚀 Authentication and authorization infrastructure for SaaS and AI apps, built on OIDC and OAuth 2.1 with multi-tenancy, SSO, and RBAC.
一键自动化 下载、安装、激活 Office 的利器。
PHP Email address validator
holehe allows you to check if the mail is used on different sites like twitter, instagram and will retrieve information on sites with the forgotten pa...
Experience email the way you want with Mail0 – the first open source email app that puts your privacy and safety first. Join the discord: https://mail...
The world's best AI personal assistant for email. Open source app to help you reach inbox zero fast.
Low code web framework for real world applications, in Python and Javascript
Comprehensive mailing tools for PHP
Check if an email address exists without sending any email, written in Rust. Comes with a ⚙️ HTTP backend.
CloudFlare free temp domain email 免费收发 临时域名邮箱 支持附件 IMAP SMTP TelegramBot
Prometheus Alertmanager
Tuta is an email service with a strong focus on security and privacy that lets you encrypt emails, contacts and calendar entries on all your devices.
Insular email distribution - mail server as Docker images
A Cloudflare-based email service | 基于 Cloudflare 的邮箱服务 | Cloudflare Email 邮箱 Mail
A cross-platform .NET library for IMAP, POP3, and SMTP.
The SimpleLogin back-end and web app
Free and Open Source messaging and emailing app that combines common web applications into one.
CLI to manage emails
✉️ Composable all-in-one mail server.
An automated e-mail OSINT tool
A few simple, but solid patterns for responsive HTML email templates and newsletters. Even in Outlook and Gmail.
Drag-n-Drop Email Editor Component for React.js
a list of disposable email domains
Email OSINT & Password breach hunting tool, locally or using premium services. Supports chasing down related email
Anonymous email forwarding
A list of amazing Newsletters
HEML is an open source markup language for building responsive email.
Fully featured, open source, privacy friendly email app for Android
Open source alternative to Resend, Sendgrid, Postmark etc.
iOS Debugging Tool 🚀
搭建专属于你的消息推送服务，支持多种消息推送方式，支持 Markdown，基于 Golang 仅单可执行文件，开箱即用
An open source email campaign management tool for nonprofits
Create, preview (browser/iOS Simulator), and send custom email templates for Node.js. Made for @forwardemail, @ladjs, @cabinjs, @spamscanner, and @br...
A dead simple Go library for sending notifications to various messaging services.
✉️ Teaching an Old Dog New Tricks -- IRC: #neomutt on irc.libera.chat
Mail hosting made simple
Papercut SMTP -- The Simple Desktop Email Server