MCP Email Server
An MCP email server is a server that exposes a mailbox's actions - send, read inbound, list messages - as tools an AI agent can call through the Model Context Protocol (MCP), the open standard for connecting agents to external capabilities. Once connected, the agent uses email the same way it calls any other tool, with no custom integration code.
Last updated June 30, 2026
How it works
An MCP server advertises its tools to an MCP-capable agent runtime, which discovers their schemas and invokes them natively. For an MCP *email* server, those tools are email operations - so "send an email" or "read the latest inbound message" become first-class agent actions.
Streamable-HTTP and auth
Modern MCP servers are reached over streamable-HTTP (the current MCP HTTP transport), which works with remote and hosted agent runtimes, not only local desktop clients. Authentication is typically a Bearer key scoped to the mailbox.
In Sairaph Mail
Sairaph Mail ships a native MCP email server at https://mail.sairaph.com/mcp/v1/mcp over streamable-HTTP, authenticated with the same scoped per-mailbox key used for REST. The mailbox's send and read/list actions surface as tools, bounded by the key's role. First-party MCP is now common among leading email vendors, so it is table stakes; what Sairaph Mail adds is a real, EU-resident, two-way mailbox behind it, on every plan.
Related: MCP email server pillar · Developer MCP setup.
Related
Give your agent a real mailbox
Two-way email over REST and a native MCP server, EU-resident by default.
EU data residencyPer-customer encryptionNative MCP