Glossary

A

access control entry (ACE)

An object such as a user or group that is present on an access control list.

access control list (ACL)

A list of security permissions applied to an object. An ACL for an item normally includes membership (ACEs) and the actions that each member can perform on the item.

ACE

See access control entry (ACE).

ACL

See access control list (ACL).

Active Directory

The Microsoft Windows directory service, which replaced the Security Accounts Manager in Microsoft Windows NT 4. Active Directory consists of a forest, one or more domains, organizational units, containers, and objects. Various classes of objects can be represented within Active Directory, including users, groups, computers, printers, and applications.

Active Directory Connector (ADC)

A service that runs on a Windows domain controller and allows you to synchronize directory information between Microsoft Exchange Server 5.5 and Active Directory. Unlike Site Replication Service, which replicates information between an Exchange 5.x organization and the configuration naming partition in Active Directory, the ADC replicates information between the Exchange 5.x directory and the domain partition in Active Directory.

Active Directory Services Interface (ADSI)

A set of interfaces that allows you to access Active Directory services programmatically.

ADC

See Active Directory Connector (ADC).

address list

A collection of recipient objects that can receive messages through Exchange Server.

address space

The part of an e-mail address that designates the system that will receive the message. Typically, the address space is the entire address except the recipient and any delimiter. For example, in the address [e-mail], @microsoft.com is the address space.

administrative group

A collection of Exchange servers that can be administered as a single unit. An administrative group can include policies, routing groups, public folder trees, monitors, servers, conferencing services, and chat networks. When security settings (permissions) are applied to an administrative group, all child objects in the tree inherit the same permissions as the administration group node.

American Standard Code for Information Interchange (ASCII)

A code for representing English characters as numbers, with each letter assigned a number from 0 through 127.

ASCII

See American Standard Code for Information Interchange (ASCII).

attribute

The individual properties that make up an object.

authentication

The process of verifying a user’s identity before authorizing the user to access a resource.

automatic document property promotion

A feature that allows for advanced searches on any document property, such as author, size, or department. When Exchange stores a document in a supported file type, the document’s properties are automatically parsed and promoted to the information store. Hence, the properties become a part of the document’s record in the database. Searches can then be performed on these properties.