## ParentSourceKey {#parentsourcekey}

Contains a value on a folder that contains the PidTagSourceKey property (section 2.1012) of the parent folder. Area: ExchangeNonTransmittableReserved Canonical name: PidTagParentSourceKey Alternate names: PR_PARENT_SOURCE_KEY

**Returns:** System::SharedPtr < PidTagPropertyDescriptor > Aspose::Email::Mapi::

```cpp
ParentSourceKey()
```