GET /messaging/v1/email/messages/?type=notSent

Gets a paginated list of messages that were not sent, ordered from oldest to newest.

Name	Type		Description
type	string	Required	Only notSent is supported.
$pageSize	integer		Number of messageKeys (array elements) to return per response page.
lastEventId	integer		Event ID from which you want the response to start. To obtain the initial event ID, submit a request without a lastEventId. The events in the response are listed top to bottom from oldest to newest.

Status	Name	Type	Description
200			Success. Review example response.
	lastEventID	integer	Event ID from which you want the response to start. To obtain the initial event ID, submit a request without a lastEventId. The events in the response are listed top to bottom from oldest to newest.
	statusCode	integer	Integer value of the reason the send did not complete. Review Email Send Error Codes for more information.
	statusMessage	string	The reason the send did not complete. Review Email Send Error Codes for more information.
	eventCategoryType	string	TransactionalSendEvent event type. EmailSent indicates that the email was sent to the email provider. EmailNotSent indicates that the email was not sent and includes the reason. EmailQueued indicates that the email has not yet been processed for sending.
	timestamp	string	Time the event occured in Central Standard Time (no daylight savings)
	definitionKey	string	Unique identifier of the definition.
	eventID	integer	Numeric identifier of the event.
	messageKey	string	Unique identifier to track message send status.
	contactKey	string	Unique identifier for a subscriber in Marketing Cloud.
	to	string	Channel address of the recipient. For email, it’s the recipient's email address. For SMS, it’s the recipient's mobile number.

Response	Reason
200 OK	Success. Review example response.
400 Bad Request	Invalid request
401 Unauthorized	Failed to pass authorization.
500 Server Error	Internal error