OpenMail
OpenMail is email infrastructure for AI agents: one API call or CLI command gives each agent its own inbox and address, inbound mail arrives over a webhook or WebSocket with attachments parsed to text, and replies stay in thread, with EU data residency on every plan.
About OpenMail
What is OpenMail?
Email infrastructure for AI agents. One API call or CLI command gives each agent its own inbox and address; inbound mail arrives over a webhook or WebSocket with attachments parsed to text, and the agent replies in thread. Hosted in the EU on every plan.
Key features
- One inbox per agent, on omail.sh or your own domain (Pro), with display names and inbox-ID routing
- Real-time delivery via webhook or WebSocket, automatic threading, allow/block sender rules
- LLM-ready attachments: PDFs, CSVs, images and Office files parsed to text
- Inbox-scoped API keys, pods for multi-tenant isolation, per-inbox sending reputation, pre-warmed SPF/DKIM/DMARC
- Hosted MCP server (ChatGPT, Claude, Cursor, VS Code), ChatGPT plugin, Claude Code, OpenClaw and Hermes plugins with tool/notify/channel modes
- REST API, MIT-licensed CLI and TypeScript SDK; works with LangChain, n8n, Make and the Vercel AI SDK
Pricing
Free: 3 inboxes, 3,000 emails/mo. Pro: €9/mo with 10 inboxes and 10,000 emails, then usage-based. Enterprise: custom. No per-seat billing; €500 startup credit program.
Company
UAB All Systems Operational, founded 2026 in Vilnius, Lithuania, by Jokūbas Vaičiulis and Armandas Vaičikauskas.
Value & Audience
Value Proposition
Gives every AI agent a real, isolated email address it can send from and receive replies on in real time, with attachments ready for a model and EU data residency included.
Problem Solved
Agents can draft email but can't receive replies, finish sign-ups or work in threads without a human relay, and shared Gmail-style accounts get suspended or mix every agent's reputation.
Tech Stack
Social & Links
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Feedback & Roadmap
OpenMail FAQ
Common questions about OpenMail's features, pricing, and use cases
Is OpenMail free to use?
OpenMail has a free tier plus paid plans, starting at Free - €0/mo - 3 inboxes, 3,000 emails/mo, 3 GB storage, 100 sends/day, OpenMail footer. Plans listed: Free - €0/mo - 3 inboxes, 3,000 emails/mo, 3 GB storage, 100 sends/day, OpenMail footer; Pro - €9/mo + usage - 10 inboxes and 10,000 emails included (then €1/inbox, €0.001/email), 10 GB, custom domains, spend management, no footer; Enterprise - custom - dedicated sending IPs, volume discounts, enterprise SSO, priority support with 1-hour SLA.
What are some alternatives to OpenMail?
Popular Communication & Messaging alternatives to OpenMail include OddsRabbit, Mumara and Audio Cable.
OpenMail appears in
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