Foundry376 / Mailspring

:love_letter: A beautiful, fast and fully open source mail client for Mac, Windows and Linux.

dreamhunter2333 / cloudflare_temp_email

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

deltachat / deltachat-desktop

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

kurrier-org / kurrier

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

postalsys / imapflow

IMAP Client library for EmailEngine Email API (https://emailengine.app)

trafficflowhq / ohmail

Consent-first email on your existing IMAP mailboxes. Optional AI assistet screener with local or Cloud models. Full local Clients for MacOS, Windows, Linux + Arch and Omarchy integrationst. Android + iOS (coming soon) Apps. AGPL-3.0.

openagentemail / openagentemail

Open communication and task handoffs for AI agents — self-hosted email, task threads, approvals, and webhooks over MCP and REST. Apache-2.0.

dengyie / one-mail

Unified inbox: aggregate QQ/163/Gmail/Outlook mail via VPS aggregator into one Cloudflare Worker API — 统一收件箱系统