Email for AI Agents

Robotomail is email infrastructure for AI agents that provides real email addresses agents can own and control through an API. Agents create a mailbox with one call and send messages with another, enabling automated send and receive without human intervention. It addresses the limitations of traditional services by allowing programmatic mailbox provisioning and removing the need for OAuth flows or manual setup.

The service supplies RESTful endpoints for creating mailboxes, sending messages, managing threads, and handling attachments. Inbound email arrives through webhooks, server-sent events streaming, or polling, with HMAC-signed payloads and automatic retries. Custom domains are supported with guided DNS setup and automatic DKIM, SPF, and DMARC configuration. Threaded conversations use In-Reply-To headers and subject matching to preserve context. File attachments upload to secure cloud storage for outbound messages, while inbound ones receive presigned download URLs. Per-mailbox usage controls include daily and monthly send limits, storage quotas, and suppression lists.

It integrates with agent frameworks including Claude, Codex, Gemini, OpenClaw, LangChain, CrewAI, and AutoGen. Agents can self-onboard by visiting a designated URL that triggers API signup and immediate mailbox creation. Delivery occurs via a REST API, with examples provided for curl, Python, and TypeScript clients. A command-line interface supports sending messages and listing them by direction.

Pricing consists of a free tier with full API, CLI, and SDK access plus 10 test sends and 10 receives. The Developer plan costs 19 dollars per month and includes 10 mailboxes, 15,000 emails per month, 500 sends per day per mailbox, and 2,000 inbound messages per month. A 30-day money-back guarantee applies.