DSCResources/MSFT_EXOExternalInOutlook/settings.json

{
  "resourceName": "EXOExternalInOutlook",
  "description": "This resource configures an .",
  "roles": {
    "read": [
      "Global Reader"
    ],
    "update": [
      "Exchange Administrator"
    ]
  },
  "permissions": {
    "Office 365 Exchange Online": {
      "application": {
        "read": [
          {
            "name": "Exchange.ManageAsApp"
          }
        ],
        "update": [
          {
            "name": "Exchange.ManageAsApp"
          }
        ]
      }
    },
    "exchange": {
      "requiredroles": [
        "O365SupportViewConfig",
        "OrganizationConfiguration",
        "ViewOnlyConfiguration"
      ],
      "requiredrolegroups": []
    }
  },
  "requiredModules": [],
  "supportedEnvironments": [
    "Global",
    "USGov"
  ]
}