{
    "type": "object",
    "properties": {
        "success": {
            "type": "boolean",
            "description": "Whether the scheduled email was cancelled successfully"
        },
        "message": {
            "type": "string",
            "description": "Success or error message"
        },
        "cancelledEmailId": {
            "type": "string",
            "description": "ID of the cancelled email"
        },
        "originalScheduledDate": {
            "type": "string",
            "format": "date-time",
            "description": "Original scheduled send date"
        },
        "cancelledAt": {
            "type": "string",
            "format": "date-time",
            "description": "Timestamp when the email was cancelled"
        },
        "emailDetails": {
            "type": "object",
            "properties": {
                "id": {
                    "type": "string",
                    "description": "Email ID"
                },
                "messageId": {
                    "type": "string",
                    "description": "Associated message ID"
                },
                "status": {
                    "type": "string",
                    "enum": ["cancelled"],
                    "description": "Updated status after cancellation"
                },
                "subject": {
                    "type": "string",
                    "description": "Email subject"
                },
                "to": {
                    "type": "array",
                    "items": {
                        "type": "object",
                        "properties": {
                            "email": {
                                "type": "string",
                                "description": "Recipient email address"
                            },
                            "name": {
                                "type": "string",
                                "description": "Recipient name"
                            }
                        }
                    },
                    "description": "Email recipients"
                },
                "campaignId": {
                    "type": "string",
                    "description": "Campaign ID (if part of a campaign)"
                }
            },
            "description": "Details of the cancelled email"
        },
        "refundInfo": {
            "type": "object",
            "properties": {
                "eligible": {
                    "type": "boolean",
                    "description": "Whether the cancellation is eligible for a refund"
                },
                "amount": {
                    "type": "number",
                    "description": "Refund amount (if applicable)"
                },
                "currency": {
                    "type": "string",
                    "description": "Currency of the refund"
                },
                "processedAt": {
                    "type": "string",
                    "format": "date-time",
                    "description": "When the refund was processed"
                }
            },
            "description": "Refund information (if applicable)"
        }
    },
    "version": 1
}