| Platform SDK: Exchange Server |
The ACL property of an attribute determines what right a user needs to modify the attribute. The ACL property value definitions are:
| Property value | Significance |
|---|---|
| 0 | Only the Microsoft Exchange directory service can modify the attribute. |
| 1 | Users with at least Modify Admin Attributes right can modify the attribute. |
| 2 | Users with at least Modify User Attributes right can modify the attribute. |
| 3 | Users with at least Modify Permissions right can modify the attribute. |
For more information, see About Directory Security.