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1.1 Glossary

This document uses the following terms:

active search folder: A search folder that has a search folder container and is up-to-date with the correct search criteria.

big-endian: Multiple-byte values that are byte-ordered with the most significant byte stored in the memory location with the lowest address.

binary large object (BLOB): A discrete packet of data that is stored in a database and is treated as a sequence of uninterpreted bytes.

Common Views folder: A special folder that contains the data for default views that are standard for a message store and can be used by any user of a client that accesses the message store.

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).

Deleted Items folder: A special folder that is the default location for objects that have been deleted.

display name: A text string that is used to identify a principal or other object in the user interface. Also referred to as title.

distribution list: A collection of users, computers, contacts, or other groups that is used only for email distribution, and addressed as a single recipient.

Drafts folder: A special folder that is the default location for Message objects that have been saved but not sent.

FAI contents table: A table of folder associated information (FAI) Message objects that are stored in a Folder object.

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.

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).

inactive search folder: A search folder that does not have a search folder container.

journal: A process that generates a Journal-Report for an original-message.

Junk Email folder: A special folder that is the default location for Message objects that are determined to be junk email by a Junk Email rule.

mailbox: A message store that contains email, calendar items, and other Message objects for a single recipient.

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.

message store: A unit of containment for a single hierarchy of Folder objects, such as a mailbox or public folders.

network byte order: The order in which the bytes of a multiple-byte number are transmitted on a network, most significant byte first (in big-endian storage). This may or may not match the order in which numbers are normally stored in memory for a particular processor.

Outbox folder: A special folder that contains Message objects that are submitted to be sent.

remote operation (ROP): An operation that is invoked against a server. Each ROP represents an action, such as delete, send, or query. A ROP is contained in a ROP buffer for transmission over the wire.

search criteria: A criteria used to determine which messages are included in a folder with specific characteristics. It is composed of a restriction, which is the filter to be applied, and a search scope, which are the folders that contain the content to search.

search folder: A Folder object that provides a means of querying for items that match certain criteria. The search folder includes the search folder definition message and the search folder container.

search folder container: A Folder object that is created according to the specifications in the definition message. It is in the Finder folder of the message database.

search folder definition message: A folder associated information (FAI) message that persists all the information that defines a search folder. It is in the associated contents table of the Common Views folder in the message database.

Sent Items folder: A special folder that is the default location for storing copies of Message objects after they are submitted or sent.

skip block: The block in a binary large object (BLOB) that acts as padding, reserving space that can be used by future versions to insert data. The block consists of a ULONG that describes how many additional ULONGs to skip ahead.

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.

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