PO6 MCP MCP server

The PO6 MCP server allows AI agents to securely access email infrastructure via private aliases and dedicated mailbox storage. It enables agents to read mail, manage aliases and domains, and build landing pages under scoped, revocable access. The server supports transactional email sending, mailbox management, and landing page operations using a single API key for both REST and MCP surfaces.

Endpoint and access

OAuth sign-in: the first time you connect, your client opens the vendor's own authorization prompt in a browser.

OAuth sign-inEndpoint checked 2026-10-05Operated by PO6

MCP endpoint (Streamable HTTP)

https://mcp.po6.com

Vendor documentation

What you can do with it

Read email content and attachments from managed mailboxes
Send transactional emails from verified domains
Manage email aliases and domain DNS settings
Create and publish landing pages to capture leads

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers a Streamable HTTP server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http po6-mcp https://mcp.po6.com

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add po6-mcp --url https://mcp.po6.com

Cursor

Merge this server into .cursor/mcp.json in your project, then enable po6-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "po6-mcp": {
      "url": "https://mcp.po6.com"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure). The type must be streamableHttp for a remote HTTP server.

Cline configuration

{
  "mcpServers": {
    "po6-mcp": {
      "type": "streamableHttp",
      "url": "https://mcp.po6.com",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start po6-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "po6-mcp": {
      "type": "http",
      "url": "https://mcp.po6.com"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

gemini mcp add --transport http po6-mcp https://mcp.po6.com

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.

Claude Desktop configuration

{
  "mcpServers": {
    "po6-mcp": {
      "url": "https://mcp.po6.com"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "po6-mcp": {
      "serverUrl": "https://mcp.po6.com"
    }
  }
}

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