| Name | Type | Optional | ByRef | Description |
|---|---|---|---|---|
| userPk | Integer | The primary key of the User whose mailbox items to load or blank to use the current User. | ||
| dateTo | Date | Optional | Load mailbox items that are dated on or before this date. If omitted, all items will be loaded. If omitted, a value of ISRuntime.OptionalNullDate is assumed. |
A Boolean value indicating success.