* [Nodemailer v8.0.3](https://github.com/nodemailer/nodemailer) – Email sending library for Node.js.

* [Matcha v0.25.0](https://github.com/floatpane/matcha) – Powerful terminal email client built with Go and Bubble Tea, supporting rich content, multiple accounts, and modern TUI features.

* [Mailtrap Node.js client v4.5.0](https://github.com/mailtrap/mailtrap-nodejs) – Node.js client for sending transactional and bulk emails with sandbox mode, attachments, and API token-based authentication.

* [@keyid/agent-kit v0.2.0](https://github.com/KeyID-AI/agent-kit) – MCP-based email toolset offering send, receive, reply, search, contacts, auto-reply, scheduling, and webhooks for AI agents.

* [Forward Email v2.6.51](https://github.com/forwardemail/forwardemail.net) – Privacy-focused email service with forwarding, transactional, and newsletter sending features.

* [postal-mime v2.7.4](https://github.com/postalsys/postal-mime) – Email parsing library for browser and serverless environments producing structured email objects.

* [Onetime Secret v0.24.5](https://github.com/onetimesecret/onetimesecret) – Securely share sensitive information through a single-use link that can be viewed only once.

* [Tuta Mail tutanota-release-nex...](https://github.com/tutao/tutanota) – Secure email service with built-in end-to-end encryption for safe communication across devices.

* [Wavebox v10.146.26-stable](https://github.com/wavebox/waveboxapp) – Chromium-based browser optimized for productive web-app workflows with tab management, sleeping tabs, cookie containers, profiles, and split-screen.

* [MJML v5.0.0-beta.2](https://github.com/mjmlio/mjml) – Markup language with semantic syntax and components for simplifying responsive email coding and generating responsive HTML.

* [React Email @react-email/tailwin...](https://github.com/resend/react-email) – Collection of high-quality, unstyled React components for building responsive, consistent emails with dark mode support.