This attribute contains the UPN that is an Internet-style login name for a user based on the Internet standard RFC 822. The UPN is shorter than the distinguished name and easier to remember. By convention, this should map to the user email name. The value set for this attribute is equal to the length of the user's ID and the ___domain name. For more information about this attribute, see User Naming Attributes.
| Entry |
Value |
| CN |
User-Principal-Name |
| Ldap-Display-Name |
userPrincipalName |
| Size |
- |
| Update Privilege |
Domain administrator or account owner. |
| Update Frequency |
In theory this should never change. |
| Attribute-Id |
1.2.840.113556.1.4.656 |
| System-Id-Guid |
28630ebb-41d5-11d1-a9c1-0000f80367c1 |
| Syntax |
String(Unicode) |
Implementations
Windows 2000 Server
| Entry |
Value |
| Link-Id |
- |
| MAPI-Id |
- |
| System-Only |
False |
| Is-Single-Valued |
True |
| Is Indexed |
True |
| In Global Catalog |
True |
| NT-Security-Descriptor |
O:BAG:BAD:S: |
| Range-Lower |
- |
| Range-Upper |
- |
| Search-Flags |
0x00000001 |
| System-Flags |
0x00000012 |
| Classes used in |
User |
Windows Server 2003
| Entry |
Value |
| Link-Id |
- |
| MAPI-Id |
- |
| System-Only |
False |
| Is-Single-Valued |
True |
| Is Indexed |
True |
| In Global Catalog |
True |
| NT-Security-Descriptor |
O:BAG:BAD:S: |
| Range-Lower |
- |
| Range-Upper |
- |
| Search-Flags |
0x00000001 |
| System-Flags |
0x00000012 |
| Classes used in |
User |
ADAM
| Entry |
Value |
| Link-Id |
- |
| MAPI-Id |
- |
| System-Only |
False |
| Is-Single-Valued |
True |
| Is Indexed |
True |
| In Global Catalog |
True |
| NT-Security-Descriptor |
O:BAG:BAD:S: |
| Range-Lower |
- |
| Range-Upper |
- |
| Search-Flags |
0x00000001 |
| System-Flags |
0x00000012 |
| Classes used in |
- |
Windows Server 2003 R2
| Entry |
Value |
| Link-Id |
- |
| MAPI-Id |
- |
| System-Only |
False |
| Is-Single-Valued |
True |
| Is Indexed |
True |
| In Global Catalog |
True |
| NT-Security-Descriptor |
O:BAG:BAD:S: |
| Range-Lower |
- |
| Range-Upper |
- |
| Search-Flags |
0x00000001 |
| System-Flags |
0x00000012 |
| Classes used in |
User |
Windows Server 2008
| Entry |
Value |
| Link-Id |
- |
| MAPI-Id |
- |
| System-Only |
False |
| Is-Single-Valued |
True |
| Is Indexed |
True |
| In Global Catalog |
True |
| NT-Security-Descriptor |
O:BAG:BAD:S: |
| Range-Lower |
- |
| Range-Upper |
- |
| Search-Flags |
0x00000001 |
| System-Flags |
0x00000012 |
| Classes used in |
User |
Windows Server 2008 R2
| Entry |
Value |
| Link-Id |
- |
| MAPI-Id |
- |
| System-Only |
False |
| Is-Single-Valued |
True |
| Is Indexed |
True |
| In Global Catalog |
True |
| NT-Security-Descriptor |
O:BAG:BAD:S: |
| Range-Lower |
- |
| Range-Upper |
- |
| Search-Flags |
0x00000001 |
| System-Flags |
0x00000012 |
| Classes used in |
User |
Windows Server 2012
| Entry |
Value |
| Link-Id |
- |
| MAPI-Id |
- |
| System-Only |
False |
| Is-Single-Valued |
True |
| Is Indexed |
True |
| In Global Catalog |
True |
| NT-Security-Descriptor |
O:BAG:BAD:S: |
| Range-Lower |
- |
| Range-Upper |
- |
| Search-Flags |
0x00000001 |
| System-Flags |
0x00000012 |
| Classes used in |
User |
In ADAM, this attribute is not required to be in the Internet standard RFC 822 format; it can be a simple name.