2.2.7 Properties That Apply to Organization Objects
An Organization object is an Address Book object that represents an organization and contains properties that are specific to that organization. A mail user's Organization object is obtained by using the PidTagAddressBookOrganizationalUnitRootDistinguishedName property (section 22.214.171.124) of the mail user.<44> When this property is not present on a mail user, messaging clients access the Organization object of a mail user by extracting the org-rdn string from the mail user's DN, which is in the format of an X500 address and the x500-dn format specification, as specified in section 126.96.36.199. Messaging clients use the resulting org-rdn string as a DN of the mail user's organization, which is in the organization-dn format specification. After the Organization object is obtained, messaging clients are able to perform operations the same way as they would on any other Address Book object.