A/V Authentication ServiceA service that is found in Office Communications Server 2007 that enables voice media to be passed through devices that use Network Address Translation…
accepted domainAny SMTP namespace for which an Exchange organization sends and receives e-mail.
access controlThe mechanisms for limiting access to certain information based on a user's identity and membership in various predefined groups.
ACE (access control entry)An entry in an object's discretionary access control list (DACL) that grants permissions to a user or group.
ACL (access control list)A security type used by Lotus Notes developers to grant varying levels of access and user privileges within Lotus Notes databases.
activationThe process of converting a storage group copy to a production storage group. Local continuous replication (LCR) and standby continuous replication (SCR)…
Active DirectoryThe directory service for Microsoft Windows 2000 Server and Windows Server 2003.
Active Directory contactAn Active Directory object that contains information about an individual such as name, address, and job title. It can include a foreign e-mail address.
Active Directory Domain Services (AD DS)The Windows-based directory service. Active Directory stores information about objects on a network and makes this information available to users and…
Active Messaging ProtectionA process by which antivirus and anti-spam agents and filters are applied to e-mail messages for the purpose of stopping unsolicited or malicious e-mails…
address rewritingFunctionality available on Receive connectors and Send connectors on the Exchange Server 2007 Edge Transport server that lets e-mail administrators modify…
Address Rewriting agentAn agent on the Receive connector and Send connector on a computer that has the Edge Transport server role installed, which lets e-mail administrators…
Address Rewriting Inbound agentAddress Rewriting agent for messages that enter an Exchange Server 2007 organization. See Address Rewriting agent. [Exchange 2007]
Address Rewriting Outbound agentAddress Rewriting agent for messages that leave an Exchange Server 2007 organization. See Address Rewriting agent. [Exchange 2007]
Address RewrittingFunctionality that enables an e-mail administrator to modify the SMTP addresses of senders and recipients on messages that enter and leave an Exchange…
administrator roleIn Exchange 2007, an administrator role is a predefined security group that provides specific permissions to allow role members to manage Exchange…
AgentAgent means any individual, other than a broker-dealer, who represents a broker-dealer or issuer in effecting or attempting to effect purchases or sales…
Allow phraseA custom word or phrase that the administrator sets for the Content Filter agent to enable the processing of e-mail messages to Exchange Server 2007…
anti-spam stampingFunctionality in Exchange Server 2007 that helps the messaging administrator diagnose spam-related problems by applying diagnostic metadata, or "stamps,"…
antivirus stampingA mechanism that helps reduce the volume of antivirus scanning that is required across an organization by stamping messages that have been scanned for…
Audio CodecThe digital encoding used to represent audio data. [Exchange 2007]
authenticationThe process of validating the credentials of a person, computer process, or device.
Auto AttendantA feature that supplies a caller with information and performs an action without the intervention of a human operator.
AutodiscoverA feature available in Outlook 2007 and some mobile devices that automatically configures the clients for access to Exchange Server 2007.
Autodiscover serviceA service that returns server configuration information for a mobile device or other client using only the user's SMTP e-mail address and password.
AV (antivirus software)A computer program designed to detect and respond to malicious software, such as viruses and worms.
Availability serviceThe Availability service improves information workers' free/busy data by providing secure, consistent, and up-to-date free/busy information to computers…
Back pressureA pressure that can cause water to backflow into the water supply when a user's water system is at a higher pressure than the public water system.
backoffIn Exchange Server 2007, a mechanism used to deliver messages at an interim hop along the least cost routing path when direct relay fails for any reason…
Basic authenticationAuthentication protocol supported by most Web servers and browsers. Transmits the user name and password in clear text.
BifurcationA split in the delivery path of an e-mail message, which is sent to multiple recipients, so that the different recipients receive different copies of the…
Block phraseA custom word or phrase that the administrator sets for the Content Filter agent to prevent e-mail messages that contain specific words or phrases from…
bounce messageA non-delivery receipt that is sent to an e-mail sender when a message cannot be delivered to the intended recipient temporarily or permanently.
boundThe upper or lower limit in a permitted range of values. [Exchange 2007]
bridgehead serverA nominated server that acts as a message transfer point between Exchange 2000 routing groups.
BrokenOne of four health states of a storage group copy. Broken indicates that the system has detected a condition that prevents replication and replay.
CA (certification authority)An entity responsible for establishing and vouching for the authenticity of public keys belonging to subjects (usually users or computers) or other…
Cached Exchange ModeA feature that lets a Microsoft Outlook user who has a Microsoft Exchange e-mail account work offline, either by choice or due to a connection problem.
Calendar AttendantAn Exchange Server feature that automatically places meetings marked Tentative on the recipient's calendar without requiring the intervention of any…
Calendar ConciergeA set of calendar enhancements that enable users to schedule people and resources quickly, efficiently, and reliably.
call answeringA voice mail application that answers a call so that a message can be left. [Exchange 2007]
categorizerA component of Exchange transport that processes all incoming messages and determines what to do with the messages based on information about the intended…
CCR (cluster continuous replication)A clustered Exchange deployment that combines the asynchronous log shipping and replay features in Exchange 2007 with the failover and management features…
certificateDigital signature combining data verification and encryption key. See PKI Digital Signature.
checksumA computed value that depends on the contents of a file. It is stored with data to detect file corruption.
CIDR (Classless Interdomain Routing)An IP address and routing management method that allocates IP addresses in a way that reduces the number of routes stored on any individual router, while…
Classless Interdomain RoutingAn IP address and routing management method that allocates IP addresses in a way that reduces the number of routes stored on any individual router, while…
Client Access server roleA set of components and services that enable users to access their Exchange mailboxes through the application Outlook Web Access and the protocols…
cloned configurationThe practice of deploying new Edge Transport servers based on the configuration information of a previously configured source server.
cluster continuous replication (CCR) environmentA clustered Exchange deployment that uses built-in asynchronous log shipping technology to create and maintain a copy of each storage group on a second…
cluster-awareThe classification of an application or service that runs on a server cluster node, is managed as a cluster resource, and is designed to be aware of and…
cluster-aware applicationAn application that can run on a cluster node and that can be managed as a cluster resource.
clustered mailbox serverIn Exchange Server 2007, a mailbox server that is installed in a Windows failover cluster.
cmdletA single-feature command-line tool that is used to manipulate objects in Windows PowerShell. [Exchange 2007]
coexistenceWhen you connect Exchange Server 2003 to another messaging system, including an earlier version of Exchange, the two systems coexist.
connectorA hold'em starting hand in which the two cards are one apart in rank. Examples: KQs, 76.
console treeIn Exchange 2007, this is left pane of the Exchange Management Console. [Exchange 2007]
content conversionThe process of transforming e-mail messages from one format to another for the purpose of mail flow or storage, such as MAPI to MIME, or uuencode to…
Copy SuspendOne of four health states of a storage group copy. Copy Suspend indicates that an administrator has temporarily halted log copying. [Exchange 2007]
custom phraseA word or phrase that the administrator sets for the Content Filter agent to evaluate the content of an e-mail message and apply appropriate filter…
DACL (discretionary access control list)The part of an object's security descriptor that grants or denies specific users and groups permission to access the object.
Defense In-DepthLocating mutually supportive defense positions in such a manner as to absorb and progressively weaken an attack, prevent initial observations of the…
delayed fan-outFunctionality on the Exchange Server 2007 Hub Transport server role where the server uses site link information to optimize the routing of messages that…
Delivery queueA queue that is used to hold messages that being delivered to a Mailbox server or remote location.
device passwordA passcode that a user enters on a mobile device that supports the Exchange ActiveSync protocol.
Dial by NameA feature that enables a caller to enter a person's name using the keys on a telephone. [Exchange 2007]
dial planA grouping of telephony users with some specific properties, such as unique telephone extension numbers, that allow the Private Branch eXchange (PBX) to…
dictionary attackA method of guessing a user's password or PIN by trying every word in the dictionary until successful. [Exchange 2007]
Digest authenticationAn authentication method that prompts the user for a user name and a password, also called credentials, which are hashed with other data before being…
Direct PushA technology that ensures that a mobile device automatically retrieves new e-mail from the Microsoft Exchange server.
direct trustIn Exchange Server 2007, authentication functionality for which the presence of the certificate in the Active Directory directory service or Active…
directory harvest attackAn attempt to collect valid e-mail addresses from a particular organization so that the e-mail addresses can be added to a spam database. [Exchange 2007]
disclaimerA patentee, whether of the whole or any sectional interest therein, may, on payment of the fee required by law, make disclaimer (give up all or part of…
distinguished folderA folder in a mailbox that can be referenced by Web services requests to identify a folder by name.
distribution groupA group of recipients created to expedite mass mailing of messages and other information.
DoS (denial of service attack)An attempt by a malicious (or unwitting) user, process, or system to prevent legitimate users from accessing a resource (usually a network service) by…
Drop directoryIn Exchange Server 2007, a directory used by each Foreign connector to send messages to an internal foreign gateway server that does not use the Simple…
DSN (delivery status notification)Notification that reports the result of an attempt to deliver an e-mail message. DSNs are designed so they can be read by humans or computers.
dynamic distribution groupA distribution group that uses recipient filters and conditions to derive its membership at the time the message is sent.
Edge Rules agentAn agent that enables organizations to apply anti-spam-based transport rules to e-mail messages that are sent between an Exchange Server 2007 organization…
Edge SubscriptionThe record of an Edge Transport server that has been subscribed to an Exchange organization and to which the Microsoft Exchange EdgeSync service…
Edge Subscription fileThe XML file that is exported on the Edge Transport server and imported on the Hub Transport server to establish an Edge Subscription. [Exchange 2007]
Edge Transport[server role] An Exchange Server 2007 server role that provides anti-spam and antivirus protection and applies messaging security policies to messages in…
Edge Transport server roleAn Exchange Server 2007 server role that provides anti-spam and antivirus protection and applies messaging security policies to messages in transport…
EdgeSyncA collection of processes that are run on the Exchange Server 2007 Hub Transport server role to establish one-way replication of recipient and…
EdgeSync synchronizationThe task or process that the Microsoft Exchange EdgeSync service performs to propagate data from the Active Directory directory service to the subscribed…
Enhanced Document AvailabilityA set of Microsoft Exchange features that offers increased access to documents even when the documents are located on an internal network or the software…
equipment mailboxAn equipment mailbox is a type of resource mailbox that is assigned to a non-location-specific resource such as a laptop projector, microphone, or company…
ESE (Extensible Storage Engine) (fka JET)Formerly known as Joint Engine Technologies (JET), the ESE is a method that defines a very low-level Application Programming Interface (API) to the…
ethical wallA zone of non-communication between distinct departments of a business or organization to prevent conflicts of interest that might result in the…
EUDPD (European Union Data Protection Directive)This directive standardizes the protection of data privacy for citizens throughout the European Union (EU) by providing baseline requirements that all…
EXCH50 binary large objectA set of properties, generated and managed by Exchange Server, which is stored with each message and contains metadata about a given message.
Exchange ActiveSyncA Microsoft program that manages synchronization of information, including e-mail, schedules, and application files, between a handheld PC and a desktop…