{ "$schema": "https://json-schema.org/draft/2020-12/schema", "$id": "#/components/schemas/MailboxItem", "title": "MailboxItem", "type": "object", "description": "An item in a mailbox folder", "properties": { "id": { "type": "string", "readOnly": true, "description": "The item unique identifier" }, "itemType": { "type": "string", "enum": [ "message", "event", "contact", "task" ], "description": "The type of mailbox item" }, "subject": { "type": "string", "description": "The subject of the item" }, "createdDateTime": { "type": "string", "format": "date-time", "description": "When the item was created" }, "lastModifiedDateTime": { "type": "string", "format": "date-time", "description": "When the item was last modified" }, "size": { "type": "integer", "description": "Size of the item in bytes" }, "internetMessageId": { "type": "string", "description": "The Internet message ID (for messages)" }, "hasAttachments": { "type": "boolean", "description": "Whether the item has attachments" } } }