openagentemail
Unlimited agent mailboxes on your own domain.
openagent.email is a self-hosted mail server that gives AI agents unlimited real mailboxes on a domain you own. The stack is two containers: a catch-all Postfix/Dovecot mailbox (docker-mailserver) and a Node/Hono API that matches incoming mail to identities by the To and Delivered-To headers, with an MCP server on top. It idles at about 190 MB of RAM. Why it exists: agents keep needing to read signup codes and verification links. Hosted agent-mail APIs work, but in a signup flow those emails are the account credentials, and every one of them passes through someone else's servers. Apache-2.0, 268 automated tests, four commands to install.
Features
Unlimited anything@yourdomain addresses Scoped per-identity tokens One-time code and verification link extraction Long-poll wait call built for automated signups Send rate limits and automatic retention Web dashboard for the human MCP server: npx -y @openagentemail/mcp
Use Cases
Agent sign-up flows that need email verification (OTP codes, confirmation links) End-to-end testing of email features Giving coding agents a real inbox to receive and reply to mail Multi-agent setups where each agent gets its own address
Comments
Hi folks! I built openagent.email because my AI agents kept needing to read signup codes and verification links - and in a signup flow those emails ARE the account credentials. I didn't want them passing through a third party, so this is a self-hosted mail server where every agent gets its own mailbox on your own domain. Two containers, ~190 MB RAM, Apache-2.0. Happy to answer anything about the catch-all setup or the MCP server on top.
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Comments
Hi folks! I built openagent.email because my AI agents kept needing to read signup codes and verification links - and in a signup flow those emails ARE the account credentials. I didn't want them passing through a third party, so this is a self-hosted mail server where every agent gets its own mailbox on your own domain. Two containers, ~190 MB RAM, Apache-2.0. Happy to answer anything about the catch-all setup or the MCP server on top.
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