> For clean Markdown content of this page, append .md to this URL. For the complete documentation index, see https://docs.agentmail.to/llms.txt.

# Core Concepts

> AgentMail is the first email provider built for AI agents. Create inboxes, send and receive messages, manage threads, and handle webhooks programmatically. Free tier, no credit card required.

## Docs

- [Inboxes](https://agentmail.to/docs/inboxes.md): Learn how AgentMail Inboxes act as scalable, API-first email accounts for your agents.
- [Messages](https://agentmail.to/docs/messages.md): Learn how to send, receive, and manage emails as Message objects with the AgentMail API.
- [Threads](https://agentmail.to/docs/threads.md): Learn how AgentMail Threads group messages into conversations and how to query them across your entire organization.
- [Drafts](https://agentmail.to/docs/drafts.md): Learn how to create, manage, and send Drafts to enable advanced agent workflows like human-in-the-loop review and scheduled sending.
- [Labels](https://agentmail.to/docs/labels.md): Learn how to use Labels to manage state, track campaigns, and filter messages for powerful agentic workflows.
- [Lists](https://agentmail.to/docs/lists.md): Learn how to use Lists to control which email addresses and domains your agents can send to or receive from.
- [Attachments](https://agentmail.to/docs/attachments.md): Learn how to send files as attachments, and download incoming attachments from both messages and threads.
- [Pods](https://agentmail.to/docs/documentation/core-concepts/pods.md): Learn how to use pods for multi-tenant email management
- [Permissions](https://agentmail.to/docs/permissions.md): Learn how to configure fine-grained permissions on API keys to restrict access to specific resources and operations.