Appendix D
Schema Properties and Attributes
Schema attributes are properties that describe Microsoft Exchange Server directory objects. The schema defines the structure for information in a mail-recipient, such as a mailbox, distribution list, remote-address, or public folder. The schema’s rules structure the information, such as which attributes are associated with which objects and which types of values can be associated with the attributes. The schema also defines the relationship between objects and the directory enforces these rules.
You use schema attributes with directory import, directory export, user list files, and migration primary files to add, modify, or remove attributes from recipients. Most of the attributes are shared by all recipients — mailbox, custom recipients, distribution lists, and public folders.

Tip
For best performance when importing thousands of changes, import them to a Microsoft Exchange Server computer that has been optimized with the Microsoft Exchange Optimizer to be a connector type of server.

The following are some terms that you need to understand:
Types
The kind of values that an attribute contains.
Object (DN) or Object (OR)
Objects can be referenced with their directory or organization name. For example, the recipient container has a directory name of /o=<organization name>/ou=<site name>/cn=Recipients.
String (Teletex)
ASCII characters only.
String (Unicode)
Any characters supported by the Unicode code page.
Enumeration
A list of valid values.
Multivalued
An attribute that can have more than one value. For example, distribution lists can have multiple members.
Backlink
An attribute that keeps track of connections between objects. It should not be modified directly. For example, the direct reports attribute is backlinked to the manager’s field. By changing the manager’s field, the direct reports fields of the old manager and new manager are automatically updated. Do not modify backlinks with directory import.
NC
Naming context. Used with directory replication.
Mailbox
The following are the attributes for a mailbox.
Property or Attribute	Type	Multivalued	
			
Accept messages from	Object (OR Name)	True	

See Auth-Orig

Property or Attribute	Type	Multivalued	
			
Accept messages from DL	Object (OR Name)	True	

See DL-Mem-Submit-Perms.

Property or Attribute	Type	Multivalued	
			
Address	String (Unicode)	False	

Home street address of the mailbox owner.

Property or Attribute	Type	Multivalued	
			
Admin-Description	String (Unicode)	False	

Use this property to store notes and especially for distribution lists that are not part of the organizational chart. For example, social, project, and committee distribution lists can be temporary or permanent. Ownership of the distribution list can change over time. Administrators can change over time. Consider having some standardized text stored in this attribute for all administrators to see. The value is limited to 1024 characters.

Property or Attribute	Type	Multivalued	
			
Admin Note	String (Unicode)	False	

See Admin-Description.
Property or Attribute	Type	Multivalued	
			
Admin-Display-Name	String (Unicode)	False	

The name of the administrator who manages the mailbox.

Property or Attribute	Type	Multivalued	
			
Alias Name	String (Unicode)	False	

See Mail-nickname.

Property or Attribute	Type	Multivalued	
			
Allow rich text	Boolean	False	

See MAPI-Recipient.

Property or Attribute	Type	Multivalued	
			
Alt-Recipient	Object (DN)	False	

Sets an alternate recipient for the mailbox agent that will receive all incoming mail for this mailbox. Mail is delivered to this recipient if it can’t be delivered to the original recipient. See related attribute Deliver-And-Redirect.

Property or Attribute	Type	Multivalued	
			
Alt-Recipient-BL	Object (DN)	True	

If this mailbox is an alternate recipient for another recipient, this attribute is set. As with other backlinked properties, to modify this value, modify the other recipient.

Property or Attribute	Type	Multivalued	
			
Alternate Recipient	Object (DN)	False	

See Alt-Recipient.

Property or Attribute	Type	Multivalued	
			
Ancestor-ID	String (Octet)	False	

(On NC prefix) invocation. The ID of DSA which created the master of this NC.

Property or Attribute	Type	Multivalued	
			
Assistant	String (Unicode)	False	

See Assistant Name.

Property or Attribute	Type	Multivalued	
			
Assistant-Name	String (Unicode)	False	

The display name for the Mailbox Assistant.

Property or Attribute	Type	Multivalued	
			
Assistant phone number	String (Unicode)	False	

See Telephone-Assistant.

Property or Attribute	Type	Multivalued	
			
Assoc-NT-Account	String (Octet)	False	

The primary Windows NT account associated with this mailbox. When you import accounts, directory import can create associated accounts if that option is selected. If the option is not selected, you can either let directory import attempt to match the mailbox’s common-name with Windows NT accounts, or you can specify an associated Windows NT account with this property if they don’t match.

Property or Attribute	Type	Multivalued	
			
Assoc-Remote-DXA	Object (DN)	True	

Not used by mail recipients.

Property or Attribute	Type	Multivalued	
			
Auth-Orig	Object (OR Name)	True	

This is the author-originator from whom this recipient will accept mail.
Property or Attribute	Type	Multivalued	
			
Auth-Orig-BL	Object (DN Name)	True	

This is the list of recipients who will accept mail from this recipient. It is the backlinked attribute of Auth-Orig.
Property or Attribute	Type	Multivalued	
			
AutoReply	Boolean	False	

This attribute is used when the recipient has activated the out-of-office notification. The message is automatically sent to another user in the organization. For example, you can create an auto-reply message if you plan to be out of the office for an extended period and want to notify those sending you mail of your absence. It can also be used by public folders to explain rules for their use or by help desk distribution lists to tell a user when to expect a reply. Modifying this value resets all AutoReply history information. See related attributes AutoReply-Message, AutoReply-Subject, and Maintain-AutoReply-History.
Property or Attribute	Type	Multivalued	
			
AutoReply-Message	String (Unicode)	False	

This is the message that will be displayed when someone sends an e-mail to the recipient. The auto-reply message is typed first, and then the auto-reply notification is selected.
Property or Attribute	Type	Multivalued	
			
AutoReply-Subject	String (Unicode)	False	

This is the subject for the auto-reply message.
Property or Attribute	Type	Multivalued	
			
Business phone number 2	String (Unicode)	False	

See Telephone-Office2.

Property or Attribute	Type	Multivalued	
			
Business-Roles	String (Octet)	False	

Describes the mailbox owner’s role (such as expense approver) and is associated with this mailbox.

Property or Attribute	Type	Multivalued	
			
Can send on behalf of	Object (DN)	True	

See Public-Delegates.

Property or Attribute	Type	Multivalued	
			
Can-Create-PF-BL	Object (DN)	True	

Backlink for a list of mailboxes that can create public folders.

Property or Attribute	Type	Multivalued	
			
Can-Create-PF-DL-BL	Object (DN)	True	

Backlink for a list of distribution lists (DL) membership that can create public folders.

Property or Attribute	Type	Multivalued	
			
Can-Not-Create-PF-BL	Object (DN)	True	

Backlink for a list of mailboxes that cannot create public folders.

Property or Attribute	Type	Multivalued	
			
Can-Not-Create-PF-DL-BL	Object (DN)	True	

Backlink for a list of DL membership that cannot create public folders.

Property or Attribute	Type	Multivalued	
			
City	String (Unicode)	False	

See Locality-Name.

Property or Attribute	Type	Multivalued	
			
Comment	String (Unicode)	False	

This string can be up to 1024 characters long. Comments are useful to distinguish between multiple people with similar names, for personal information that can be publicly seen, or for other long text that someone might need when addressing a message. Information in the comment field, unlike Admin-Description, is visible in the Address Book.
Property or Attribute	Type	Multivalued	
			
Common-Name	String (Teletex)	False	

The common name is typically a shortened version of the mailbox owner’s name that is used when addressing messages. Once a recipient is created, the common-name value can’t be changed.
Property or Attribute	Type	Multivalued	
			
Company	String (Unicode)	False	

Specifies the company name for the recipient. It is limited to 64 characters. 
Property or Attribute	Type	Multivalued	
			
Country	String (Unicode)	False	

See Text-Country.

Property or Attribute	Type	Multivalued	
			
Custom Attribute 1-10	String (Unicode)	False	

See Extension-Attribute-1-10

Property or Attribute	Type	Multivalued	
			
Deliver to both	Boolean	False	

See Deliver-and-Redirect.

Property or Attribute	Type	Multivalued	
			
Deliverable Information Types	String (Octet)	True	

See Deliv-EITs.

Property or Attribute	Type	Multivalued	
			
Deliv-Cont-Length	String (Octet)	False	

This attribute defines the maximum message size in kilobytes. When a number is entered, it sets the size of the message; when absent is selected, there is no message size limit. Microsoft Exchange Server computers store messages in a single-copy store. Therefore, no matter how many mailboxes are on a server, or whom a message is addressed to, there is only one copy in the private information store. If a distribution list spans many servers or systems, you can limit the size of messages sent to it by specifying the maximum message size in this property. 
Property or Attribute	Type	Multivalued	
			
Deliv-EITs	String (Octet)	True	

This property defines the allowable encoded information types (EIT) to be delivered. These information types describe the contents of a particular type of data so that the receiving system can display the data accordingly. The three most common types are MIME (Multipurpose Internet Mail Extensions), uuencode and uudecode. Both uuencode and uudecode are tools that prepare binary files for transport between UNIX systems. Additionally, uuencode is used extensively to encode non-7-bit data in messages. When the message is received at the destination, the encoded data needs to be decoded by using uudecode. The Internet Mail Connector can automatically encode data in outbound messages and automatically decodes parts in incoming messages. 
Property or Attribute	Type	Multivalued	
			
Deliv-Ext-Cont-Types	String (Octet)	True	

This attribute sets the X.400 P1 content types.
Property or Attribute	Type	Multivalued	
			
Deliver-And-Redirect	Boolean	False	

If this mailbox has an alternate recipient, this flag is set to determine whether the new messages are delivered only to the alternate recipient (False) or to both the original and alternate recipient (True). 
Property or Attribute	Type	Multivalued	
			
Delivery-Mechanism	Enumeration	False	

The mechanism for receiving mail by this mailbox.

Property or Attribute	Type	Multivalued	
			
Department	String (Unicode)	False	

The name of the department where the recipient works. This is displayed in the Address Book and is limited to 64 characters.

Property or Attribute	Type	Multivalued	
			
Description	String (Unicode)	True	

Optional long description allowed for any type of object. Limited to 1024 characters.
Property or Attribute	Type	Multivalued	
			
Direct Reports	Object (DN)	True	

List of direct reports and backlinked to the mailbox owner’s manager.

Property or Attribute	Type	Multivalued	
			
Directory Name	String (Teletex)	False	

See Common-Name.
Property or Attribute	Type	Multivalued	
			
Display-Name	String (Unicode)	False	

This is the name (a maximum of 256 alphanumeric characters) that is displayed in the Administrator window. The syntax of this field is Unicode, which understands all languages and their special characters. The attribute’s string is displayed as the user’s name in the Address Book. This is used in two ways: as the basis for how to sort the address list, and for attempting to resolve addresses when typing an address in the To or Cc boxes instead of selecting an address. You can change this for many mailboxes if you change the way you want to sort addresses. For example, you can switch from First Last to Last, First.
Property or Attribute	Type	Multivalued	
			
Display-Name-Printable	Printable String	False	

This attribute is the printable string version of the Display-Name.
Property or Attribute	Type	Multivalued	
			
DL-Mem-Submit-Perms	Object (OR Name)	True	

Only the members of these distribution lists can submit messages to this recipient.
Property or Attribute	Type	Multivalued	
			
DL-Mem-Reject-Perms	Object (OR Name)	True	

When this attribute is set, the members of these distribution lists cannot submit messages to this recipient.
Property or Attribute	Type	Multivalued	
			
DL-Mem-Reject-Perms-BL	Object (DN)	True	

When this attribute is set, it backlinks the members of these distribution lists who cannot submit messages to this recipient.
Property or Attribute	Type	Multivalued	
			
DL-Mem-Submit-Perms-BL	Object (DN)	True	

Only the members of these distribution lists can submit messages to this recipient.
Property or Attribute	Type	Multivalued	
			
DSA Signature	String (Octet)	False	

Used for replication purposes.
Property or Attribute	Type	Multivalued	
			
E-mail Addresses	String (Teletex-Extended)	True	

See Proxy-Addresses.
Property or Attribute	Type	Multivalued	
			
Expiration-Time	Time String (UTC)	False	

Not used for mail recipients.
Property or Attribute	Type	Multivalued	
			
Extension-Attribute-1-10	String (Unicode)	False	

You can set up to 10 custom attribute fields to track information about the recipients in your site. By default, the fields are called Custom Attributes 1 through 10. This is done on a site-by-site basis. For best use of this within your organization, use the same attributes in every site.
Property or Attribute	Type	Multivalued	
			
Extension-Data	String (Octet)	True	

Extension-specific data relating to the topic. Extensions are a way of creating extra property pages on objects. See the Microsoft Exchange Server Programmer’s Reference for more details.
Property or Attribute	Type	Multivalued	
			
Extension Name	String (Unicode)	True	

Path and name of an extension DLL to add property pages (not inherited).
Property or Attribute	Type	Multivalued	
			
Extension-Name-Inherited	String (Unicode)	True	

Path and name of an extension DLL to add property pages (inherited).
Property or Attribute	Type	Multivalued	
			
Fax number	String (Unicode)	False	

See Telephone-Fax.
Property or Attribute	Type	Multivalued	
			
First Name	String (Unicode)	False	

See Given-Name.
Property or Attribute	Type	Multivalued	
			
Given-Name	String (Unicode)	False	

Specifies the mailbox owner’s first name. It is limited to 64 characters.
Property or Attribute	Type	Multivalued	
			
Heuristics	Integer	False	

Not used by mail recipients.
Property or Attribute	Type	Multivalued	
			
Hide-From-AB	Boolean	False	

See Hide-From-Address-Book.
Property or Attribute	Type	Multivalued	
			
Hide-From-Address-Book	Boolean	False	

If you set this property to true, then this address is not seen in the Address Book. Mail can be routed to it, the user can send mail from it, and people can address mail to it from their personal address books. This property can be used during migration to hide new mailboxes until the users begin using them. It can also be used to hide upper levels of management addresses from the Address Book, although the reject and accept mail from recipient attributes can be used to prevent nuisance mail if that is the goal.
Property or Attribute	Type	Multivalued	
			
Home phone number	String-Unicode	False	

See Telephone-Home.
Property or Attribute	Type	Multivalued	
			
Home phone number 2	String-Unicode	False	

See Telephone-Home 2.
Property or Attribute	Type	Multivalued	
			
Home-MDB	Object (DN)	False	

This attribute indicates the Display-Name of the Message Store that is used by this recipient.
Property or Attribute	Type	Multivalued	
			
Home-MDB-BL	Object (DN)	False	

Backlink to a list of users associated with a server.
Property or Attribute	Type	Multivalued	
			
Home-MTA	Object (DN)	False	

This is the message transfer agent (MTA) associated with this recipient. One use of this field is where a distribution list can be expanded. The distribution list can be expanded only at the designated server, unless this field is empty in which case it can be expanded on any server. Appears in the General property page as Expansion server. You should set this only for extremely large distribution lists that, during expansion, cause performance problems on the server. If set, it should designate a server with few active mailboxes and public folders where the momentary performance degradation won’t be noticed.
Property or Attribute	Type	Multivalued	
			
Imported-From	String (Unicode)	False	

Uses data from directory synchronization for importing data from another source.
Property or Attribute	Type	Multivalued	
			
Incoming message size limit	Integer	False	

See Deliv-Cont-Length.
Property or Attribute	Type	Multivalued	
			
Initials	String (Unicode)	False	

Lists the initials of the user’s name (usually limited to three characters).

Property or Attribute	Type	Multivalued	
			
Instance-Type	Integer	False	

Identifies this as a master or replica NC.

Property or Attribute	Type	Multivalued	
			
International-ISDN-Number	String (Numeric)	True	

The international ISDN number for the mailbox user.

Property or Attribute	Type	Multivalued	
			
Is-Deleted	Boolean	False	

This object is a tombstone.

Property or Attribute	Type	Multivalued	
			
Is-Member-Of-DL	Object (DN)	True	

Backlink for members of a distribution list.

Property or Attribute	Type	Multivalued	
			
Issue warning storage limit	Integer	False	

See MDB-Storage-Quota.
Property or Attribute	Type	Multivalued	
			
Last name	String (Unicode)	False	

See Surname.

Property or Attribute	Type	Multivalued	
			
Locality-Name	String (Unicode)	False	

The location or city where the mailbox owner resides. Limited to 128 characters.

Property or Attribute	Type	Multivalued	
			
Mail-nickname	String (Unicode)	False	

This property is displayed in a mailbox’s General property page as Alias Name. By default, it generates e-mail addresses. For example, if you have not modified the e-mail addresses in the Site Addressing property page, the mailbox’s SMTP address is <mail-nickname>@site.enterprise.com>. Changing mail-nickname should be done before users begin to use the system, or you will be changing their e-mail name used by people outside the organization. In addition, the Address Book displays this property. Limited to 64 characters.
Property or Attribute	Type	Multivalued	
			
Maintain-AutoReply-History	Boolean	False	

Indicates to the MTA whether it should always return the out-of-office message and then store it for later retrieval.
Property or Attribute	Type	Multivalued	
			
Manager	Object (DN)	False	

The name of the recipient’s manager. The value of this property is either a mailbox or custom recipient. When you add a manager to this mailbox’s manager property, this mailbox is added to the manager’s reports property. When you change a mailbox’s manager property from an old manager to a new manager, both managers’ report properties are updated.
Property or Attribute	Type	Multivalued	
			
MAPI-Recipient	Boolean	False	

Indicates to a gateway if the recipient is a MAPI recipient. MAPI clients support the rich text features in Microsoft Exchange Server.
Property or Attribute	Type	Multivalued	
			
Master-DSA	Object (Access Point)	False	

Points to the directory that holds the master instance of this NC.

Property or Attribute	Type	Multivalued	
			
MDB-Over-Quota-Limit	Integer	False	

The number of bytes allowed over the quota limit.

Property or Attribute	Type	Multivalued	
			
MDB-Storage-Quota	Integer	False	

The maximum storage this public folder is allowed (0=0K bytes; Absent=No limit).

Property or Attribute	Type	Multivalued	
			
MDB-Use Defaults	Boolean	False	

If true, this mailbox or public folder uses the default values for MDB-Over-Quota-Limit and MDB-Storage-Quota. If false, it will not use the default values.

Property or Attribute	Type	Multivalued	
			
Member of	Object (DN)	True	

See Is-Member-Of-DL.

Property or Attribute	Type	Multivalued	
			
Mobile number	String (Unicode)	False	

See Telephone-Mobile.

Property or Attribute	Type	Multivalued	
			
Notes	String (Unicode)	False	

See Comment.

Property or Attribute	Type	Multivalued	
			
NT-Security-Descriptor	String (Octet)	False	

The Windows NT security descriptor controlling access to this object.

Property or Attribute	Type	Multivalued	
			
Obj-Dist-Name	Object (DN)	False	

The DN of this object (system created).

Property or Attribute	Type	Multivalued	
			
Object-Class	String (Object Identifier)	True	

OID of this object’s class and optionally the OIDs of its super-classes.

Property or Attribute	Type	Multivalued	
			
Object-Version	Integer	False	

The version of the object for replication.

Property or Attribute	Type	Multivalued	
			
Office	String (Unicode)	False	

See Physical-Delivery-Office-Name.

Property or Attribute	Type	Multivalued	
			
Outgoing message size limit	Integer	False	

See Submission-Cont-Length.

Property or Attribute	Type	Multivalued	
			
Owner-BL	Object (DN)	False	

Backlink to the owner of a distribution list.

Property or Attribute	Type	Multivalued	
			
Pager number	String (Unicode)	False	

See Telephone-pager.

Property or Attribute	Type	Multivalued	
			
Period-Repl-Stagger	Integer	False	

Needed for replication.

Property or Attribute	Type	Multivalued	
			
Period-Rep-Sync-Times	String (Octet)	False	

Needed for replication.

Property or Attribute	Type	Multivalued	
			
Phone Number	String (Unicode)	False	

See Telephone-Office1.

Property or Attribute	Type	Multivalued	
			
Postal Code	String (Unicode)	False	

The country’s postal code or zip code for the mailbox owner.

Property or Attribute	Type	Multivalued	
			
Physical-Delivery-Office-Name	String (Unicode)	False	

The building, floor, or office number of the mailbox owner.

Property or Attribute	Type	Multivalued	
			
Primary Windows NT Account	Numeric	False	

See Assoc-NT-Account.

Property or Attribute	Type	Multivalued	
			
Prohibit-send-storage-limit	Numeric	False	

See MDB-Over-Quota-Limit.

Property or Attribute	Type	Multivalued	
			
Proxy-Addresses	String (Teletex-Extended)	True	

Each mailbox can have a proxy or e-mail address for each foreign system for which this Microsoft Exchange Server site has an address space. By default, this property has values for three types of addresses: MS Mail (PC), SMTP, and X.400. You can modify these properties. Because this is a multivalued property, remember to select Append in the Multivalued Properties box in the Directory Export dialog box, or you will replace all the entries with the one you are modifying. See the related attribute Secondary-Proxy-Addresses.
Property or Attribute	Type	Multivalued	
			
Public-Delegates	Object (DN)	True	

The list of distinguished names of the public delegates which may access this mailbox.

Property or Attribute	Type	Multivalued	
			
Public-Delegates-BL	Object (DN)	True	

The backlink for the public delegates’ mailbox.

Property or Attribute	Type	Multivalued	
			
Reject messages from	Object (OR Name)	True	

See Unauth-Orig.

Property or Attribute	Type	Multivalued	
			
Reject messages from DL	Object (OR Name)	True	

See DL-Mem-Reject-Perms.

Property or Attribute	Type	Multivalued	
			
Replication-Sensitivity	Integer	False	

The sensitivity of this instance to directory synchronization. Seen as Trust Level in the Advanced property page of the recipient.
Property or Attribute	Type	Multivalued	
			
Reports	Object (DN)	True	

The list of persons who report directly to the mailbox owner (backlink to Manager).

Property or Attribute	Type	Multivalued	
			
Reps-From	Object (Replica Link)	True	

DSA internal use for replication.

Property or Attribute	Type	Multivalued	
			
Reps-To	Object (Replica Link)	True	

DSA internal use for replication.

Property or Attribute	Type	Multivalued	
			
Reps-To-Ext	Object (Replica Link)	True	

Contains the attribute list and replication-sensitivity for messaging domains.

Property or Attribute	Type	Multivalued	
			
Secondary-Proxy-Addresses	String (Unicode)	True	

Similar to proxy addresses except that the secondary proxy address is only for the inbound address resolution field. The type of e-mail address (X.400, SMTP, MS, MSA and so on) is in lowercase for secondary e-mail addresses. This attribute is used if you are migrating from another system and you want to retain your old address information. You can import and export secondary addresses, and the values are shown in the E-mail Addresses property page with the primary addresses.

Property or Attribute	Type	Multivalued	
			
Security-Protocol	String (Octet)	True	

This attribute defines the supported security protocols.
Property or Attribute	Type	Multivalued	
			
Simple display name	Printable String	False	

See Display-Name-Printable.

Property or Attribute	Type	Multivalued	
			
State	String (Unicode)	False	

See State-Or-Province-Name.

Property or Attribute	Type	Multivalued	
			
State-Or-Province-Name	String (Unicode)	False	

The name of the state or province where the mailbox owner resides.

Property or Attribute	Type	Multivalued	
			
Submission-Cont-Length	Integer	False	

This represents the maximum content size allowed for submission. (0=kilobytes and Absent=No limit.)
Property or Attribute	Type	Multivalued	
			
Sub-Refs	Object (DN)	True	

Not used by mail recipients.

Property or Attribute	Type	Multivalued	
			
Supporting-Stack-BL	Object (DN)	True	

Not used by mail recipients.

Property or Attribute	Type	Multivalued	
			
Surname	String (Unicode)	False	

The last name of the mailbox owner. Limited to 64 characters.

Property or Attribute	Type	Multivalued	
			
Telephone-Assistant	String (Unicode)	False	

The telephone number of the mailbox owner’s assistant.

Property or Attribute	Type	Multivalued	
			
Telephone-Fax	String-Unicode	False	

Telephone number for the fax machine of the mailbox owner.

Property or Attribute	Type	Multivalued	
			
Telephone-Home 	String-Unicode	False	

Primary home telephone number of the mailbox owner.
Property or Attribute	Type	Multivalued	
			
Telephone-Home 2	String-Unicode	False	

Second home telephone number of the mailbox owner.
Property or Attribute	Type	Multivalued	
			
Telephone-Mobile	String (Unicode)	False	

Portable telephone number for the mailbox owner.
Property or Attribute	Type	Multivalued	
			
Telephone-Number	String (Unicode)	True	

The voice phone number for this recipient. Note that there are other attributes for fax, cellular, car, home, office2, other, pager, and radio phone numbers.
Property or Attribute	Type	Multivalued	
			
Telephone-Office1	Numeric	False	

Primary office phone number of the mailbox owner. This is typically a voice phone. Note the related fax, cellular, car, home, office2, and pager phone numbers.

Property or Attribute	Type	Multivalued	
			
Telephone-Office2	Numeric	False	

Secondary office phone number of the mailbox owner.

Property or Attribute	Type	Multivalued	
			
Telephone-Pager	String (Unicode)	False	

Pager number for the mailbox owner.

Property or Attribute	Type	Multivalued	
			
Teletex-Terminal-Identifier	String (Octet)	True	

Identification number for the Teletex terminal of the mailbox owner.

Property or Attribute	Type	Multivalued	
			
Telex-Number	String (Octet)	True	

The telex number (if applicable) for the mailbox owner.

Property or Attribute	Type	Multivalued	
			
Text-Country	String (Unicode)	False	

The country where the mailbox owner is located.

Property or Attribute	Type	Multivalued	
			
Title	String (Unicode)	False	

The business title of the mailbox owner.

Property or Attribute	Type	Multivalued	
			
Trust level	Integer	False	

See Replication-Sensitivity.

Property or Attribute	Type	Multivalued	
			
Unauth-Orig	Object (OR Name)	True	

Lists the recipients from whom the mail recipient will not accept mail.
Property or Attribute	Type	Multivalued	
			
Unauth-Orig-BL	Object (DN)	True	

Backlinks of the recipients who will not accept mail from this mail recipient.
Property or Attribute	Type	Multivalued	
			
Use IS defaults	Boolean	False	

See MDB-Use-Defaults.

Property or Attribute	Type	Multivalued	
			
User-Cert	String (Octet)	False	

Sets this recipient’s public certificate which contains the public key. The information is used for digital signatures and encryption and binds the user’s public key to the mailbox.
Property or Attribute	Type	Multivalued	
			
USN-Changed	Integer	False	

Needed for replication.

Property or Attribute	Type	Multivalued	
			
USN-Created	Integer	False	

The USN for the object when it was created.

Property or Attribute	Type	Multivalued	
			
USN-DSA-Last-Obj-Removed	Integer	False	

Needed for replication.

Property or Attribute	Type	Multivalued	
			
USN-Last-Obj-Removed	Integer	False	

Needed for replication.

Property or Attribute	Type	Multivalued	
			
USN-Source	Integer	False	

Needed for replication.

Property or Attribute	Type	Multivalued	
			
When-Changed	UTC Time String	False	

System time stamp of last change to this object.

Property or Attribute	Type	Multivalued	
			
When-Created	UTC Time String	False	

System time stamp of creation of this object.

Property or Attribute	Type	Multivalued	
			
X121-Address	String (Numeric)	True	

X.121 access control list.

Property or Attribute	Type	Multivalued	
			
X500-Access-Control-List	String (Octet)	True	

X.500 access control list.
Custom Recipient
Custom recipients have an obj-class of remote. Many of the schema attributes for custom recipients are described in the “Mailbox” section:
Accept messages from	Accept messages from DL	
Address	Admin Note	
Admin-Description	Admin-Display-Name	
Alias Name	Allow rich text	
Alt-Recipient	Alt-Recipient-BL	
Alternate Recipient	Ancestor-ID	
Assistant	Assistant phone number	
Assistant-Name	Assoc-Remote-DXA	
Auth-Orig	Auth-Orig-BL	
AutoReply	AutoReply-Message	
AutoReply-Subject	Business phone number 2	
Can-Create-PF-BL	Can-Create-PF-DL-BL	
Can-Not-Create-PF-BL	Can-Not-Create-PF-DL-BL	
City	Comment	
Common-Name	Company	
Country	Custom Attribute 1-10	
Deliv-Cont-Length	Deliv-EITs	
Deliv-Ext-Cont-Types	Deliver to both	
Deliver-And-Redirect	Deliverable Information Types	
Department	Description	
Direct Reports	Directory Name	
Display-Name	Display-Name-Printable	
DL-Mem-Reject-Perms	DL-Mem-Reject-Perms-BL	
DL-Mem-Submit-Perms	DL-Mem-Submit-Perms-BL	
DSA Signature	E-mail Addresses	
Expiration-Time	Extension Name	
Extension-Attribute-1-10	Extension-Data	
Extension-Name-Inherited	Fax number	
First Name	Given-Name	
Heuristics	Hide-From-AB	
Hide-From-Address-Book	Home phone number	
Home phone number 2	Home-MDB	
Home-MDB-BL	Home-MTA	
Imported-From	Incoming message size limit	
Initials	Instance-Type	
International-ISDN-Number	Is-Deleted	
Is-Member-Of-DL	Last name	
Locality-Name	Mail-nickname	
Maintain-AutoReply-History	Manager	
MAPI-Recipient	Master-DSA	
Member of	Mobile number	
Notes	NT-Security-Descriptor	
Obj-Dist-Name	Object-Class	
Object-Version	Office	
Outgoing message size limit	Owner-BL	
Pager number	Period-Rep-Sync-Times	
Period-Repl-Stagger	Phone Number	
Physical-Delivery-Office-Name	Postal Code	
Proxy-Addresses	Public-Delegates	
Public-Delegates-BL	Reject messages from	
Reject messages from DL	Replication-Sensitivity	
Reports	Reps-From	
Reps-To	Reps-To-Ext	
Secondary-Proxy-Addresses	Security-Protocol	
Simple display name	State	
State-Or-Province-Name	Sub-Refs	
Submission-Cont-Length	Supporting-Stack-BL	
Surname	Telephone-Assistant	
Telephone-Fax	Telephone-Home	
Telephone-Home 2	Telephone-Mobile	
Telephone-Number	Telephone-Office1	
Telephone-Office2	Telephone-Pager	
Teletex-Terminal-Identifier	Telex-Number	
Text-Country	Title	
Trust level	Unauth-Orig	
Unauth-Orig-BL	User-Cert	
USN-Changed	USN-Created	
USN-DSA-Last-Obj-Removed	USN-Last-Obj-Removed	
USN-Source	When-Changed	
When-Created	X121-Address	
X500-Access -Control-List		

The following attribute is not cited in the “Mailbox” section and applies only to custom recipients:
Property or Attribute	Type	Multivalued	
			
Target-Address	String (Teletex Extended)	False	

The address of the recipient in the recipient’s native addressing system. For example, custom recipients from MS Mail (PC) have MS-type target addresses. This is the address the Microsoft Exchange Servers use to route the message. The address should be in the form of <type>:<address>. Valid types depend on which gateways you have installed. Check any mailbox’s e-mail address list for valid types. The value of this property can be up to 1123 characters long.

Distribution-List
Distribution lists have an obj-class of dl. Many of the attributes for distribution lists are explained in the mailbox section:
Accept messages from	Accept messages from DL	
Admin Note	Admin-Description	
Admin-Display-Name	Alias Name	
Allow rich text	Alt-Recipient	
Alt-Recipient-BL	Alternate Recipient	
Ancestor-ID	Assoc-Remote-DXA	
Auth-Orig	Auth-Orig-BL	
AutoReply	AutoReply-Message	
AutoReply-Subject	Can-Create-PF-BL	
Can-Create-PF-DL-BL	Can-Not-Create-PF-BL	
Can-Not-Create-PF-DL-BL	Comment	
Common-Name	Custom Attribute 1-10	
Deliv-Cont-Length	Deliv-EITs	
Deliv-Ext-Cont-Types	Deliver to both	
Deliver-And-Redirect	Deliverable Information Types	
Description	Direct Reports	
Directory Name	Display-Name	
Display-Name-Printable	DL-Mem-Reject-Perms	
DL-Mem-Reject-Perms-BL	DL-Mem-Submit-Perms	
DL-Mem-Submit-Perms-BL	DSA Signature	
E-mail Addresses	Expiration-Time	
Extension Name	Extension-Attribute-1-10	
Extension-Data	Extension-Name-Inherited	
Heuristics	Hide-From-AB	
Hide-From-Address-Book	Home-MDB	
Home-MDB-BL	Home-MTA	
Imported-From	Incoming message size limit	
Instance-Type	Is-Deleted	
Is-Member-Of-DL	Mail-nickname	
Maintain-AutoReply-History	MAPI-Recipient	
Master-DSA	Member of	
Notes	NT-Security-Descriptor	
Obj-Dist-Name	Object-Class	
Object-Version	Outgoing message size limit	
Owner-BL	Period-Rep-Sync-Times	
Period-Repl-Stagger	Proxy-Addresses	
Public-Delegates	Public-Delegates-BL	
Reject messages from	Reject messages from DL	
Replication-Sensitivity	Reports	
Reps-From	Reps-To	
Reps-To-Ext	Secondary-Proxy-Addresses	
Security-Protocol	Simple display name	
Sub-Refs	Submission-Cont-Length	
Supporting-Stack-BL	Telephone-Number	
Trust level	Unauth-Orig	
Unauth-Orig-BL	User-Cert	
USN-Changed	USN-Created	
USN-DSA-Last-Obj-Removed	USN-Last-Obj-Removed	
USN-Source	When-Changed	
When-Created	X500-Access -Control-List	

The following are the attributes that apply only to distribution lists.
Property or Attribute	Type	Multivalued	
			
DL-Member-Rule	String (Octet)	True	

Specifies a search filter for the Rules-Based distribution list function. This is a hidden attribute. By default, all Microsoft Exchange Server distribution lists can have distribution lists as members. This saves the administrator time when creating a division distribution list — the only members would be the department distribution lists and the head of the division. A company-wide distribution list could take only a minute to create. If you do not want to use this time-saving feature of Microsoft Exchange Server, set this value to False.

Property or Attribute	Type	Multivalued	
			
Hide-DL-Membership	Boolean	False	

Indicates if the membership should be hidden from the Address Book. The default is false. Use this if you need to create a distribution list with a secret membership. This does not prevent someone from sending a mail message with return receipt selected to the distribution list (see related attributes OOF-Reply-To-Originator, Report-to-Originator and Report-to-Owner), but it prevents casual browsing. Combine this with Hide-From-Address-Book for increased security.

Property or Attribute	Type	Multivalued	
			
Member	Object (OR Name)	True	

Lists the members of the distribution list.

Property or Attribute	Type	Multivalued	
			
Member of	Object (DN)	True	

See Is-Member-Of-DL.

Property or Attribute	Type	Multivalued	
			
OOF-Reply-To-Originator	Boolean	False	

Sends message back to originator when mailbox owner is out of the office. Set the value to false if Hide-DL-Membership is set to true.

Property or Attribute	Type	Multivalued	
			
Owner	Object (DN)	False	

The DN of the mailbox that owns the distribution list.

Property or Attribute	Type	Multivalued	
			
Report-to-Originator	Boolean	False	

Specifies if the message originator should receive any reports. If false, the message originator does not receive reports. Set the value to false if Hide-DL-Membership is set to true.

Property or Attribute	Type	Multivalued	
			
Report-to-Owner	Boolean	False	

Specifies if the distribution list owner receives any reports. If false, the distribution list owner does not receive reports.

Public Folder
Public folders have an obj-class of pf. Public folders are different from the other three mail recipients because you can’t export them with directory export, or create them with directory import. You can create them with the Migration Wizard, however.
Many of the following attributes for distribution list are explained in the “Mailbox” section:
Accept messages from	Accept messages from DL	
Address	Admin Note	
Admin-Description	Admin-Display-Name	
Alias Name	Allow rich text	
Alt-Recipient	Alt-Recipient-BL	
Alternate Recipient	Ancestor-ID	
Assistant	Assistant-Name	
Assoc-Remote-DXA	Auth-Orig	
Auth-Orig-BL	AutoReply	
AutoReply-Message	AutoReply-Subject	
Can-Create-PF-BL	Can-Create-PF-DL-BL	
Can-Not-Create-PF-BL	Can-Not-Create-PF-DL-BL	
Comment	Common-Name	
Custom Attribute 1-10	Deliv-Cont-Length	
Deliv-EITs	Deliv-Ext-Cont-Types	
Deliver to both	Deliver-And-Redirect	
Deliverable Information Types	Delivery-Mechanism	
Description	Direct Reports	
Directory Name	Display-Name	
Display-Name-Printable	DL-Mem-Reject-Perms	
DL-Mem-Reject-Perms-BL	DL-Mem-Submit-Perms	
DL-Mem-Submit-Perms-BL	DSA Signature	
E-mail Addresses	Expiration-Time	
Extension Name	Extension-Attribute-1-10	
Extension-Data	Extension-Name-Inherited	
Heuristics	Hide-From-AB	
Hide-From-Address-Book	Home-MDB	
Home-MDB-BL	Home-MTA	
Imported-From	Incoming message size limit	
Instance-Type	Is-Deleted	
Is-Member-Of-DL	Issue warning storage limit	
Mail-nickname	Maintain-AutoReply-History	
MAPI-Recipient	Master-DSA	
MDB-Over-Quota-Limit	MDB-Storage-Quota	
MDB-Use Defaults	Member of	
Notes	NT-Security-Descriptor	
Obj-Dist-Name	Object-Class	
Object-Version	Outgoing message size limit	
Owner-BL	Period-Rep-Sync-Times	
Period-Repl-Stagger	Prohibit-send-storage-limit	
Proxy-Addresses	Public-Delegates	
Public-Delegates-BL	Reject messages from	
Reject messages from DL	Replication-Sensitivity	
Reports	Reps-From	
Reps-To	Reps-To-Ext	
Secondary-Proxy-Addresses	Security-Protocol	
Simple display name	Sub-Refs	
Submission-Cont-Length	Supporting-Stack-BL	
Telephone-Assistant	Telephone-Number	
Trust level	Unauth-Orig	
Unauth-Orig-BL	Use IS defaults	
User-Cert	USN-Changed	
USN-Created	USN-DSA-Last-Obj-Removed	
USN-Last-Obj-Removed	USN-Source	
When-Changed	When-Created	
X500-Access -Control-List		

The following are the attributes that apply only to public folders:
Property or Attribute	Type	Multivalued	
			
Display-Name-Override	Boolean	False	

Display Name can be set by a non-administrator. If set to false, it cannot be set by a non-administrator.

Property or Attribute	Type	Multivalued	
			
Folder-Pathname	String (Unicode)	False	

The path for locating the public folder’s directory. This path can be viewed by a user to find a folder.

Property or Attribute	Type	Multivalued	
			
PF-Contacts	Object (DN)	True	

The DN for the folder’s contacts.

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