User-Principal-Name attribute

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.

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

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

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

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

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

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

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

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

Remarks

In ADAM, this attribute is not required to be in the Internet standard RFC 822 format; it can be a simple name.