Submail is now publicly available as a self-hosted unified inbox for humans and AI agents.
Highlights:
- IMAP and POP3 mailbox sync with SMTP sending
- Unified Web inbox, drafts, conversations, search, and attachment management
- OpenAI-compatible summaries, reply suggestions, composition, and translation
- Scoped stdio and Streamable HTTP MCP plus an idempotent send API
- Docker deployment with Redis and SQLite or MySQL
- Bilingual documentation, real product screenshots, CI, and community templates
Review the README and docs/gap-review.md for deployment guidance and current boundaries.