UI ignores the top-level "off" error.

if keymanager - and therefore, incoming service- is off, mail should display a failed icon.

{
  "result": {
    "status": "off",
    "keys": null,
    "unread": null,
    "childrenStatus": {
      "keymanager": {
        "status": "off",
        "keys": null,
        "error": null
      },
      "smtp": {
        "status": "on",
        "error": null
      },
      "incoming": {
        "status": "off",
        "unread": null,
        "error": null
      },
      "imap": {
        "status": "on",
        "error": null
      }
    },
    "error": null
  },
  "error": null
}