Object Classes Used for ADSI Support

Four object classes are used frequently when working with ADSI. To see a table explaining more about each class and its attributes, click the class name.

• Mail-Recipient (person) Object Class
• Mailbox (organizationalPerson) Object Class
• Custom-Recipient (custom-recipient) Object Class
• Distribution-List (groupOfNames) Object Class

The columns in the tables in the following topics should be interpreted as follows:

Attribute	Description
LDAPName	Name of the attribute as used by LDAP; matches the "Description" of the attribute in the Microsoft Exchange Server schema (see "Description Property" later in this chapter).
Microsoft Exchange name	Name of the attribute in the Microsoft Exchange Server directory schema
Mandatory	Whether the attribute must be present on the object
Heuristics	Heuristics of the attribute as described in Heuristics Property
ACL	Access category of the attribute as described in ACL Property
Syntax	Syntax of the attribute. Values for Syntax can include the following: Boolean: Value of TRUE or FALSE Integer: Any integer value String(Unicode): A Unicode string String(Numeric): A numeric string String(Octet): A binary string (according to LDAP, binary attributes supported using the string encoding of their binary representation) Object(DS-DN): A distinguished name (DN) in rfc1779 format; for example: cn=jsmith,ou=redmond,o=microsoft,c=us
Comment	A comment on the attribute