This document uses the following terms:
8.3 name: A file name string restricted in length to 12 characters that includes a base name of up to eight characters, one character for a period, and up to three characters for a file name extension. For more information on 8.3 file names, see [MS-CIFS] section 18.104.22.168.1.
address list: A collection of distinct Address Book objects.
address type: An identifier for the type of email address, such as SMTP and EX.
ambiguous name resolution (ANR): A search algorithm that permits a client to search multiple naming-related attributes on objects by way of a single clause of the form "(anr=value)" in a Lightweight Directory Access Protocol (LDAP) search filter. This permits a client to query for an object when the client possesses some identifying material related to the object but does not know which attribute of the object contains that identifying material.
Appointment object: A Calendar object that has an organizer but no attendees.
archive tag: An element that contains information about the archive policy of a Message object or folder.
Attachment object: A set of properties that represents a file, Message object, or structured storage that is attached to a Message object and is visible through the attachments table for a Message object.
Augmented Backus-Naur Form (ABNF): A modified version of Backus-Naur Form (BNF), commonly used by Internet specifications. ABNF notation balances compactness and simplicity with reasonable representational power. ABNF differs from standard BNF in its definitions and uses of naming rules, repetition, alternatives, order-independence, and value ranges. For more information, see [RFC5234].
blind carbon copy (Bcc) recipient: An addressee on a Message object that is not visible to recipients of the Message object.
body part: A part of an Internet message, as described in [RFC2045].
Calendar object: A Message object that represents an event, which can be a one-time event or a recurring event. The Calendar object includes properties that specify event details such as description, organizer, date and time, and status.
carbon copy (Cc) recipient: An address on a Message object that is visible to recipients of the Message object but is not necessarily expected to take any action.
Classification, labeling, and protection: Classification is determining that an email has sensitive or otherwise interesting content in it. Labeling is tagging the email with an administrator-defined sensitivity label that travels with the email. Protection is enforcing administrator-defined outcomes based on the sensitivity label.
common name (CN): A string attribute of a certificate that is one component of a distinguished name (DN). In Microsoft Enterprise uses, a CN must be unique within the forest where it is defined and any forests that share trust with the defining forest. The website or email address of the certificate owner is often used as a common name. Client applications often refer to a certification authority (CA) by the CN of its signing certificate.
conversation: A single representation of a send/response series of email messages. A conversation appears in the Inbox as one unit and allows the user to view and read the series of related email messages in a single effort.
conversation action: A limited set of actions that a user applies to all Message objects that have the same PidTagConversationId value. The action is applied to all Message objects that are currently in the store or are delivered in the future.
Coordinated Universal Time (UTC): A high-precision atomic time standard that approximately tracks Universal Time (UT). It is the basis for legal, civil time all over the Earth. Time zones around the world are expressed as positive and negative offsets from UTC. In this role, it is also referred to as Zulu time (Z) and Greenwich Mean Time (GMT). In these specifications, all references to UTC refer to the time at UTC-0 (or GMT).
counter proposal: A request that an attendee sends to an organizer when requesting a change to the date or time of a meeting.
cyclic redundancy check (CRC): An algorithm used to produce a checksum (a small, fixed number of bits) against a block of data, such as a packet of network traffic or a block of a computer file. The CRC is a broad class of functions used to detect errors after transmission or storage. A CRC is designed to catch random errors, as opposed to intentional errors. If errors might be introduced by a motivated and intelligent adversary, a cryptographic hash function should be used instead.
Deferred Action Message (DAM): A hidden message indicating to a client that it needs to execute one or more rules on another user-visible message in the store.
delivery receipt: A report message that is generated and sent by a client or server to the sender of a message or another designated recipient when an email message is received by an intended recipient.
Department object: An Address Book object that describes a department within an organization.
departmental group: A distribution list that describes a department within an organization.
display template: A template that describes how to display or allow a user to modify information about an Address Book object.
distinguished name (DN): A name that uniquely identifies an object by using the relative distinguished name (RDN) for the object, and the names of container objects and domains that contain the object. The distinguished name (DN) identifies the object and its location in a tree.
Document object: A Message object that represents a single file, such as a document generated by a word-processing application. The Message object contains the file as an Attachment object and includes additional properties to describe the file.
domain: A set of users and computers sharing a common namespace and management infrastructure. At least one computer member of the set must act as a domain controller (DC) and host a member list that identifies all members of the domain, as well as optionally hosting the Active Directory service. The domain controller provides authentication of members, creating a unit of trust for its members. Each domain has an identifier that is shared among its members. For more information, see [MS-AUTHSOD] section 22.214.171.124 and [MS-ADTS].
double-byte character set (DBCS): A character set that can use more than one byte to represent a single character. A DBCS includes some characters that consist of 1 byte and some characters that consist of 2 bytes. Languages such as Chinese, Japanese, and Korean use DBCS.
entry ID: See EntryID.
Exception object: An instance of a recurring series that differs from the rest of the recurring series, for example by start time.
File Transfer Protocol (FTP): A member of the TCP/IP suite of protocols that is used to copy files between two computers on the Internet if both computers support their respective FTP roles. One computer is an FTP client and the other is an FTP server.
folder associated information (FAI): A collection of Message objects that are stored in a Folder object and are typically hidden from view by email applications. An FAI Message object is used to store a variety of settings and auxiliary data, including forms, views, calendar options, favorites, and category lists.
Folder object: A messaging construct that is typically used to organize data into a hierarchy of objects containing Message objects and folder associated information (FAI) Message objects.
free/busy status: A property of an appointment that indicates how an appointment on the calendar of an attendee or resource affects their availability.
Global Address List (GAL): An address list that conceptually represents the default address list for an address book.
globally unique identifier (GUID): A term used interchangeably with universally unique identifier (UUID) in Microsoft protocol technical documents (TDs). Interchanging the usage of these terms does not imply or require a specific algorithm or mechanism to generate the value. Specifically, the use of this term does not imply or require that the algorithms described in [RFC4122] or [C706] must be used for generating the GUID. See also universally unique identifier (UUID).
group header: A navigation shortcut that groups other navigation shortcuts.
Hypertext Markup Language (HTML): An application of the Standard Generalized Markup Language (SGML) that uses tags to mark elements in a document, as described in [HTML].
Hypertext Transfer Protocol (HTTP): An application-level protocol for distributed, collaborative, hypermedia information systems (text, graphic images, sound, video, and other multimedia files) on the World Wide Web.
instance: A unique publication of data for a category. It enables a publisher to publish data for the same category multiple times. An example is a publisher who uses two different endpoints to publish data. These endpoints can publish the same category. However, each endpoint requires a different instance number to be considered a distinct publication by the server. An instance number is provided by the publishing client.
locale: A collection of rules and data that are specific to a language and a geographical area. A locale can include information about sorting rules, date and time formatting, numeric and monetary conventions, and character classification.
long ID (LID): A 32-bit quantity that, in combination with a GUID, defines a named property.
mail tip: A note that is presented to the author of a message when the author is composing the message. A mail tip provides information about the recipients of a message and issues that might impact delivery of the message, such as moderation or delivery restrictions.
mail user: An Address Book object that represents a person or entity that can receive deliverable messages.
Meeting object: A Calendar object that has both an organizer and attendees.
meeting request: An instance of a Meeting Request object.
Meeting Request object: A Message object that represents an invitation from the meeting organizer to an attendee.
Meeting Response object: A Message object that represents an attendee's response to a meeting organizer's invitation. The response indicates whether the attendee accepted, tentatively accepted, or declined the meeting request. The response can include a proposed new date or time for the meeting.
Meeting Update object: A Message object that represents a meeting organizer's changes to a previously scheduled meeting. The update is categorized as either a full update or an informational update.
Meeting Workspace: A website that is created by using the Meetings Web Services protocol, as described in [MS-MEETS]. It can host documents, discussions, and other information about a meeting.
meeting-related object: A Message object that represents a relay of information between a meeting organizer and an attendee. It can be any of the following: Meeting Request object, Meeting Update object, Meeting Cancellation object, or Meeting Response object.
message body: The main message text of an email message. A few properties of a Message object represent its message body, with one property containing the text itself and others defining its code page and its relationship to alternative body formats.
Message object: A set of properties that represents an email message, appointment, contact, or other type of personal-information-management object. In addition to its own properties, a Message object contains recipient properties that represent the addressees to which it is addressed, and an attachments table that represents any files and other Message objects that are attached to it.
Multipurpose Internet Mail Extensions (MIME): A set of extensions that redefines and expands support for various types of content in email messages, as described in [RFC2045], [RFC2046], and [RFC2047].
Note object: A Message object that represents a simple text note in a messaging store and that adheres to the property descriptions that are described in [MS-OXONOTE]. A Note object functions as an electronic equivalent of a paper sticky note.
offline address book (OAB): A collection of address lists that are stored in a format that a client can save and use locally.
organizer: The owner or creator of a meeting or appointment.
orphan instance: An instance of an event that is in a recurring series and is in a Calendar folder without the recurring series. For all practical purposes, this is a single instance.
Out of Office (OOF): One of the possible values for the free/busy status on an appointment. It indicates that the user will not be in the office during the appointment.
Permanent Entry ID: A property of an Address Book object that can be used to uniquely identify the object.
phishing: The luring of sensitive information, such as passwords or other personal information, from a recipient by masquerading as someone who is trustworthy and has a real need for such information.
property ID: A 16-bit numeric identifier of a specific attribute. A property ID does not include any property type information.
property set: A set of attributes, identified by a GUID. Granting access to a property set grants access to all the attributes in the set.
public folder: A Folder object that is stored in a location that is publicly available.
recipient: An entity that is in an address list, can receive email messages, and contains a set of attributes. Each attribute has a set of associated values.
Recurring Calendar object: A Calendar object that describes an event that repeats according to a recurrence pattern.
recurring task: A series of Task objects that are described by a recurrence pattern.
reminder: A generally user-visible notification that a specified time has been reached. A reminder is most commonly related to the beginning of a meeting or the due time of a task but it can be applied to any object type.
replica GUID (REPLGUID): A value that represents a namespace for identifiers. If a REPLGUID is combined with a GLOBSET, the result is a set of global identifiers. A REPLGUID value has an associated replica ID (REPLID) that is used in its place on disk and on the wire.
replica ID (REPLID): A value that is mapped to a replica GUID (REPLGUID) that identifies a namespace for IDs within a given logon. REPLIDs are used on disk and on the wire for compactness, and are replaced with the corresponding REPLGUID for external consumption.
resource: Any component that a computer can access that can read, write, and process data. This includes internal components (such as a disk drive), a service, or an application running on and managed by the cluster on a network that is used to access a file.
Resource object: An Address Book object that represents an asset that can be reserved, such as a room or equipment.
retention tag: An element that contains information about the retention policy of a Message object or folder.
Rich Text Format (RTF): Text with formatting as described in [MSFT-RTF].
ROP buffer: A structure containing an array of bytes that encode a remote operation (ROP). The first byte in the buffer identifies the ROP. This byte is followed by ROP-specific fields. Multiple ROP buffers can be packed into a single remote procedure call (RPC) request or response.
rule: An item that defines a condition and an action. The condition is evaluated for each Message object as it is delivered, and the action is executed if the new Message object matches the condition.
Rule FAI message: A folder associated information (FAI) message stored in the Inbox special folder where the client can store extra rule-related information that is opaque to the server.
server object: A class of object in the configuration naming context (config NC). A server object can have an nTDSDSA object as a child.
signal time: The time at which a reminder has been specified to notify the user or an agent acting on behalf of the user. For example, the signal time for a meeting that starts at 11:00 A.M. can be 10:45 A.M., thus allowing the user 15 minutes to prepare for or travel to the meeting upon receiving the notification.
Simple Mail Transfer Protocol (SMTP): A member of the TCP/IP suite of protocols that is used to transport Internet messages, as described in [RFC5321].
site mailbox: A repository comprised of a mailbox and a web-based collaboration environment that is presented to users as a mailbox in an email client. A site mailbox uses team membership to determine which users have access to the repository.
soft delete: A process that removes an item from the system, but not permanently. If an item is soft deleted, a server retains a back-up copy of the item and a client can access, restore, or permanently delete the item. See also hard delete.
special folder: One of a default set of Folder objects that can be used by an implementation to store and retrieve user data objects.
tagged property: A property that is defined by a 16-bit property ID and a 16-bit property type. The property ID for a tagged property is in the range 0x001 – 0x7FFF. Property IDs in the range 0x8000 – 0x8FFF are reserved for assignment to named properties.
Task object: A Message object that represents an assignment to be completed.
task request: A Message object that is used to issue a task assignment.
Transmission Control Protocol (TCP): A protocol used with the Internet Protocol (IP) to send data in the form of message units between computers over the Internet. TCP handles keeping track of the individual units of data (called packets) that a message is divided into for efficient routing through the Internet.
Transport Neutral Encapsulation Format (TNEF): A binary type-length-value encoding that is used to encode properties for transport, as described in [MS-OXTNEF].
Unicode: A character encoding standard developed by the Unicode Consortium that represents almost all of the written languages of the world. The Unicode standard [UNICODE5.0.0/2007] provides three forms (UTF-8, UTF-16, and UTF-32) and seven schemes (UTF-8, UTF-16, UTF-16 BE, UTF-16 LE, UTF-32, UTF-32 LE, and UTF-32 BE).
Uniform Resource Identifier (URI): A string that identifies a resource. The URI is an addressing mechanism defined in Internet Engineering Task Force (IETF) Uniform Resource Identifier (URI): Generic Syntax [RFC3986].
Uniform Resource Locator (URL): A string of characters in a standardized format that identifies a document or resource on the World Wide Web. The format is as specified in [RFC1738].
unsendable attendee: An attendee to whom a meeting request or meeting update is not sent.
X500 DN: A distinguished name (DN), in Teletex form, of an object that is in an address book. An X500 DN can be more limited in the size and number of relative distinguished names (RDNs) than a full DN.
XML: The Extensible Markup Language, as described in [XML1.0].
XML document: A document object that is well formed, as described in [XML10/5], and might be valid. An XML document has a logical structure that is composed of declarations, elements, comments, character references, and processing instructions. It also has a physical structure that is composed of entities, starting with the root, or document, entity.
MAY, SHOULD, MUST, SHOULD NOT, MUST NOT: These terms (in all caps) are used as defined in [RFC2119]. All statements of optional behavior use either MAY, SHOULD, or SHOULD NOT.