Get mailbox schema

{
    "type": "object",
    "properties": {
        "OriginalDocument": {
            "type": "object",
            "properties": {
                "name": {
                    "type": "string"
                },
                "url": {
                    "type": "string"
                },
                "content_type": {
                    "type": "string"
                },
                "size": {
                    "type": "integer"
                }
            }
        },
        "CustomerAddress": {
            "type": "object",
            "properties": {
                "original": {
                    "type": "string"
                },
                "found": {
                    "type": "boolean"
                },
                "normalized": {
                    "type": "string"
                },
                "number": {
                    "type": "string"
                },
                "street": {
                    "type": "string"
                },
                "address1": {
                    "type": "string"
                },
                "address2": {
                    "type": "string"
                },
                "city": {
                    "type": "string"
                },
                "zip": {
                    "type": "string"
                },
                "county": {
                    "type": "string"
                },
                "state_code": {
                    "type": "string"
                },
                "state": {
                    "type": "string"
                },
                "country_code": {
                    "type": "string"
                },
                "country": {
                    "type": "string"
                },
                "lat": {
                    "type": "number"
                },
                "lng": {
                    "type": "number"
                },
                "map": {
                    "type": "string"
                }
            }
        },
        "CustomerCompany": {
            "type": "string"
        },
        "CustomerEmail": {
            "type": "string"
        },
        "Items": {
            "type": "array",
            "items": {
                "type": "object",
                "properties": {
                    "description": {
                        "type": "string"
                    },
                    "price": {
                        "type": "number"
                    },
                    "quantity": {
                        "type": "number"
                    },
                    "unitPrice": {
                        "type": "number"
                    }
                }
            }
        },
        "TOTAL": {
            "type": "number"
        }
    }
}