IN THE FIELD GUIDE
robotomail
robotomail.com
Robotomail is an email infrastructure service designed specifically for AI agents, providing real email addresses that can be created and managed via a REST API with API-key authentication. It supports sending and receiving emails, automatic threading, and real-time inbound notifications through webhooks, SSE streaming, or polling.
THE PRODUCT, BEYOND THE PITCH
Editorially reviewed · Sources checked Sep 12, 2026
A good fit for
- AI developers and teams building autonomous agents that require email communication capabilities.
- Users needing programmatic mailbox creation and management without traditional email service limitations.
Know the limitations
- Free plan inbound and outbound email is limited to 10 sends and 10 receives per month and only between the agent and the verified email address.
- Inbound mail beyond the monthly cap on free plans is discarded and not saved for later.
What you can do
- Enables AI agents to send and receive emails programmatically without human OAuth flows or SMTP configuration.
- Supports building automated workflows where AI agents can react to inbound emails and reply automatically with preserved conversation context.
Features
- Create mailboxes with one API call and send emails with another.
- Real-time inbound email notifications via webhooks, SSE event streaming, or polling with HMAC-signed payloads and automatic retries.
- Automatic threading of conversations using In-Reply-To headers and subject matching to preserve context across replies.
- Support for file attachments with secure cloud storage and presigned download URLs for inbound attachments.
- Usage controls including per-mailbox daily and monthly send limits, storage quotas, and suppression lists to manage sending behavior.
Integrations
- Works with AI agents such as Claude, Codex, Cursor, Grok Bot, OpenClaw, Hermes, and others via MCP connection.
Platforms & data export
- Accessible via REST API, CLI, and official SDKs in TypeScript/JavaScript, Python, Go, Ruby, and Rust.
- Supports sending and receiving emails with HTML bodies, custom headers, and attachments.
THE COST FOR YOUR TEAM
Go beyond the starting price.
Published plan prices for your team size and usage. Results update as you type. Taxes, currency conversion and unlisted add-ons are excluded, and anything the source did not state is called out rather than guessed.
Cheapest fit for 1 person, all 1 tools
$0.00/month
$0.00 a year on these plans.
| Tool / plan | Monthly | Per year | What this assumes |
|---|---|---|---|
FreeCheapest fit Flat subscription | $0.00 | $0.00 | Automatically extracted from the linked pricing source. Confirm usage, taxes and terms with the provider. |
A practical workflow
- Receive inbound emails by polling the messages endpoint, setting up webhooks, or using SSE streaming for real-time events.
Based on the sources below. Editorial review does not imply hands-on product testing.
Alternatives to explore
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