attribute type Microsoft

1.2.840.113556.1.4.656

userPrincipalName

also known as User-Principal-Name

The user@suffix login name. The suffix does not have to match the domain's DNS name, which is both a convenience and a source of confusion, and a UPN has to be unique across the whole forest. Single-valued, and often but not always equal to the user's mail address.

OID
1.2.840.113556.1.4.656
Name
userPrincipalName
Aliases
User-Principal-Name
Kind
attribute type
Arcwho allocated the number
Microsoft 1.2.840.113556

Schema

Syntax
String(Unicode)
Single-valued
yes

Definition

attributetype ( 1.2.840.113556.1.4.656 NAME 'userPrincipalName' SYNTAX '1.3.6.1.4.1.1466.115.121.1.15' SINGLE-VALUE )

Appears in: OpenLDAP msuser.schema, Active Directory schema. Primary source. Spotted an error? Tell me.

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