Attributes for Exchange 5.5 Mailboxes : MDB-Use-Defaults
This attribute configures the behavior of other mailbox limit attributes. It determines whether the mailbox is limited by the general mailbox store limits or by its own limit values.
MDB-Use-Defaults
| LDAP name | MDB-Use-Defaults |
| Data type | Boolean |
| Multivalue (Array) | No |
| Heuristic | 12 => Replicated between sites, operational attribute |
| Access category | Admin access only |
| Ex55 Database name | MDB-Use-Defaults |
If you set this attribute to 'No', then the limit attribute MDB-Storage-Quota, MDB-Over-Quota-Limit and DXA-Task are set in place. Otherwise the general limits configured for the mailbox store are effective for the mailbox.
The MDB-Use-Defaults attribute is an operational attribute which is not automatically retrieved by a GetObject() or an GetInfo() call. You can load such attributes into the object property cache by explicitly calling GetInfoEx(). Read more about this technique in the topic 'Reading object attributes' here in the SelfADSI tutorial.