{ "$schema": "https://json-schema.org/draft/2020-12/schema", "$id": "#/components/schemas/microsoft.graph.mailboxProtectionRule", "title": "microsoft.graph.mailboxProtectionRule", "allOf": [ { "$ref": "#/components/schemas/microsoft.graph.protectionRuleBase" }, { "title": "mailboxProtectionRule", "required": [ "@odata.type" ], "type": "object", "properties": { "mailboxExpression": { "type": "string", "description": "Contains a mailbox expression. For examples, see mailboxExpression examples.", "nullable": true }, "@odata.type": { "type": "string", "default": "#microsoft.graph.mailboxProtectionRule" } } } ], "x-ms-discriminator-value": "#microsoft.graph.mailboxProtectionRule" }