Showing 36 of 90 projects
An open-source notification infrastructure with a unified API for In-App, Email, SMS, Push, and Chat notifications.
An open-source notification infrastructure with a unified API for in-app, email, SMS, push, and chat notifications.
A curated list of falsehoods programmers believe in, covering topics like names, addresses, time, and more to help avoid common pitfalls.
A curated list of falsehoods programmers believe in, covering topics from names and dates to networks and geography.
A full-featured email creation and transfer library for PHP, offering a robust alternative to the native mail() function.
A collection of high-quality, unstyled React components for building and sending modern, responsive emails.
A markup language and framework for creating responsive emails with a semantic syntax and standard components.
A beautiful, fast, and fully open-source desktop mail client for Mac, Windows, and Linux.
A Node.js module for sending emails with support for various transports, security features, and easy integration.
Open-source authentication and authorization infrastructure for SaaS and AI apps, built on OIDC and OAuth 2.1.
A Rust tool to verify email address deliverability without sending emails, with CLI, HTTP backend, and library options.
A cross-platform .NET library for robust, RFC-compliant IMAP, POP3, and SMTP client communication.
An open-source email alias service to protect your online identity by creating disposable email addresses.
A free, open-source, cross-platform desktop app that combines multiple messaging and email services into one unified interface.
A composable, all-in-one mail server that implements SMTP, IMAP, DKIM, SPF, DMARC, and more in a single daemon.
A collection of simple, solid responsive HTML email patterns that work across clients including Outlook and Gmail.
A curated, community-driven list of categorized newsletters for developers, designers, and tech professionals.
A Node.js library to create, preview, and send custom email templates with support for multiple template engines and CSS inlining.
A desktop SMTP server and email viewer for safe email testing during development.
A desktop SMTP server and email viewer for safe email testing during development.
A Grunt workflow for designing and testing responsive HTML email templates with SCSS compilation and CSS inlining.
A Go package for generating clean, responsive HTML and plain-text transactional emails with built-in themes.
A Python library for sending emails conveniently via Gmail/SMTP with minimal code.
A curated collection of frameworks, templates, tools, and resources for building and testing modern HTML emails.
A Ruby on Rails gem for sending notifications across multiple channels like email, SMS, Slack, and real-time UI updates.
An advanced spam filtering system and email processing framework that evaluates messages using regex, statistical analysis, and custom services.
A comprehensive IMAP4rev2 library for building Go email clients and servers.
A Rust library for sending emails with multiple transport methods, SMTP security, and async support.
A high-performance .NET library for creating and parsing MIME messages with support for S/MIME, PGP, DKIM, TNEF, and Unix mbox.
An open-source, self-hosted emailing platform for sending newsletters and transactional emails with enterprise-grade features.
A testable, composable, and adapter-based Elixir email library for developers.
Cross-language library to detect temporary (disposable/throwaway) email addresses, covering over 55,000 fake providers.
A Ruby gem that automatically inlines CSS into HTML emails for ActionMailer, making styled emails work across all clients.
A flexible PHP component for sending emails with support for multiple transports and Twig template integration.
A 100% open-source, privacy-focused email service with forwarding, SMTP, IMAP, POP3, CalDAV, and CardDAV support.
A Go library for email verification without sending emails, featuring syntax validation, SMTP checks, disposable email detection, and domain typo suggestions.
Related Tags
Found a gem we're missing?
Open-Awesome is built by the community, for the community. Submit a project, suggest an awesome list, or help improve the catalog on GitHub.