Official mailbox.bot MCP server for AI agents. Send letters, certified mail and postcards, and give an agent its own street address + postal mailbox number. Agent receiving virtual mailboxes with a real street address are live now at $15/mo in Manhattan Beach, CA. Sandbox keys, approval controls, tracking and webhooks.
An MCP server that provides AI agents with a persistent, agent-native email mailbox for sending, receiving, and managing emails through bounded-context retrieval, idempotent operations, and explicit acknowledgement.
An MCP server that gives AI agents permission-gated, audit-logged access to private email providers (Proton Mail via Bridge and plain IMAP), running locally with OAuth-based authentication and human-controlled escalation for destructive operations.