The email inbox
built for AI agents.
OpenMail is a real email API for AI agents. Give each agent its own inbox, send and receive email, and get replies instantly.
No credit card required
Built for agents, not marketers.
Traditional email APIs were designed to blast newsletters. OpenMail is designed for two-way communication, real threading, and agents that actually need to act on what they receive.
Instant Replies
Replies land in your agent's lap. No polling. Webhooks or WebSocket, pick what fits your stack. The moment an email hits an inbox, your handler fires with parsed, prioritized data, ready for your agent to act on.
Sender rules
Account-level allowlists and blocklists by email or domain.
One inbox per agent
Each agent gets its own email. Not shared inboxes, not forwarding. Real identity for every agent you build.
LLM-ready attachments
Every inbound event ships with signed download URLs for every attachment. Opt into parsing and PDFs, CSVs, images, and docs arrive as plain text ready to drop into a prompt. Your agent never touches a MIME type.
Pick how your agent handles email.
Set a mode during setup. Switch anytime with openmail setup --reconfigure.
On demand
The agent sends and reads email when you ask. No background activity.
Alert on arrival
New email arrives, you get alerted. You decide what happens next.
Fully autonomous
Incoming email triggers an autonomous reply. No human in the loop.
Works with the agents you already use.
One command to give OpenClaw or Claude Code a real inbox. Or talk directly to the REST API — WebSocket for instant replies, no polling.
Read the Docs# Install the OpenMail skill from ClawHub
npx clawhub@latest install openmail
# OpenClaw walks you through:
# → Auth with your OpenMail account
# → Creating your inbox
# → Choosing a mode: Tool / Notify / Channel
# Reconfigure anytime
openmail setup --reconfigureWhat your agents can do with inboxes.
Every AI agent is a potential inbox. Here's what they can do with one.
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Frequently asked questions
Writing
Best email providers for AI agents in 2026
Most rankings put a transactional API at the top. If your agent needs to receive a reply, correlate a thread, or handle an OTP in under five seconds, the top two picks will cost you a refactor.
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OpenMail vs Mailgun vs Amazon SES
Mailgun sends. SES is cheap. Neither was built for agents that receive, thread, and parse attachments. Here’s what’s actually different between all three.
Why Every Email Option Falls Short for AI Agents
Gmail bans agents. Proton has no API. Outlook is a maze. Resend can't receive. A look at why every email option falls short for AI agents and what the risks are.
How to Give OpenClaw Its Own Email Address
One ClawHub command gives your OpenClaw agent a dedicated inbox with real-time delivery. Choose a usage mode — tool, notify, or channel — and you're done.
Why Your AI Agent Needs Its Own Email Address
An agent can browse the internet, write code, take actions. But without an email address it has no identity it can actually use.
We're EU-Based. That's Not a Footnote — It's the Point.
OpenMail is built in the EU, runs in the EU, and every customer is covered by GDPR — not as a checkbox, but as a legal guarantee.
Your AI Agent Needs an Email Address. Here's Why That's Harder Than It Sounds.
Email feels like a solved problem — until you try to give an AI agent its own inbox. Here's what we learned building email infrastructure for autonomous agents.
This Is Not for Human Eyes
We noticed that AI agents were finding OpenMail before we'd fully built for them. Here's what we saw — and what we built next.
Every AI agent deserves its own inbox.
Install the CLI, run setup, and you're sending email from your agent in minutes.
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