Skiff Apps alternatives for AI agents.

The open-source communication infrastructure for agents and products

💌 Build and send emails using React

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://mail0.link/discord

🧑‍🚀 Authentication and authorization infrastructure for SaaS and AI apps, built on OIDC and OAuth 2.1 with multi-tenancy, SSO, and RBAC.

CloudFlare free temp domain email 免费收发 临时域名邮箱 支持附件 IMAP SMTP TelegramBot

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.

Kurrier is a modern, self-hosted workspace for email, calendar, contacts and storage.

Open source alternative to Resend, Sendgrid, Postmark etc.

A cute temporary email service built with NextJS + Cloudflare technology stack 🎉 | 一个基于 NextJS + Cloudflare 技术栈构建的可爱临时邮箱服务🎉

Open-source customer engagement. Automate transactional and marketing messages across email, SMS, mobile push, WhatsApp, Slack, and more 📨

JMAP 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.

A simple python library to interact with Microsoft Graph and Office 365 API

Bichon – A lightweight, high-performance Rust email archiver with WebUI

Utils library for specific Brazilian businesses

Decentralized private messenger with chat-shared tools and games for Desktop

Virtual whiteboard for sketching hand-drawn like diagrams