Individual agent inboxes
Creates an inbox on your domain for each AI agent through one API call per inbox.
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Coding / product dossier
Give each AI agent an inbox on your domain, with incoming mail delivered by webhook or WebSocket.
Product brief
Your agents sign up for tools, receive verification codes and reply to customers, mostly from your Gmail or a shared sending pool where one bad actor gets everyone flagged. OpenMail gives every AI agent its own inbox on your domain with its own sending reputation, for one API call each. Incoming mail reaches your code over webhook or WebSocket, attachments arrive as text, and there's a hosted MCP server and a Hermes plugin. Built and hosted in the EU, free for 3 inboxes.
Why we selected it
Addresses a specific agent deployment need with individual inboxes and sending reputations rather than shared email credentials. Webhooks, WebSockets, a hosted MCP server, and three free inboxes make it accessible to
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Capability scan
Only capabilities supported by the product information we collected are listed here.
Creates an inbox on your domain for each AI agent through one API call per inbox.
Gives each agent its own sending reputation rather than relying on a shared sending pool.
Delivers incoming mail to your code through a webhook or WebSocket.
Provides incoming attachments as text.
Includes a hosted MCP server and a Hermes plugin.
Best-fit use cases
FAQ
Yes. Each agent gets its own inbox on your domain and its own sending reputation.
OpenMail sends incoming mail to your code through a webhook or WebSocket. Attachments arrive as text.
OpenMail includes a hosted MCP server and a Hermes plugin.
The product description states that OpenMail is free for three inboxes.
OpenMail is described as built and hosted in the EU.