Duobox for VS Code

io.duobox/mail

Business email on your domain for AI agents: read, draft and send with the permissions you choose.

client:VS Code transport:streamable-http

Install Duobox in VS Code

.vscode/mcp.json

{
  "servers": {
    "mail": {
      "type": "http",
      "url": "https://mcp.duobox.io/v1/mcp"
    }
  }
}

Requires agent mode. MCP: Open User Configuration puts the same block in every workspace. VS Code docs