Whether the failure is permanent. For example True for hard bounces or permanent SMS failures, False for soft bounces or temporary failures, null if unknown.

reason : String

The reason for the delivery failure.

vendorErrorCode : String

The vendor-specific error code (for example, SMTP '550' or Twilio '30006').

The example data in the variables and responses below are autogenerated values designed to resemble real inputs. They do not represent actual customer data, and in some cases may require additional validation.

Example

{
  "isPermanent": true,
  "reason": "dream-none-group-city-since",
  "vendorErrorCode": "trouble-finish-they-get-price"
}