mail contactA mail-enabled Active Directory contact that contains information about people or organizations that exist outside an Exchange Server organization.
mail userA mail-enabled Active Directory user that represents a user outside the Exchange organization. Each mail user has an external e-mail address.
MailboxAn area on a storage device where email is placed. In email systems, each user has a private mailbox.
mailbox databaseA database for storing mailboxes in Exchange Server. The mailbox database manages the data in mailboxes, tracks deleted messages and mailbox sizes, and…
mailbox delivery queueA group of temporary queues that hold messages that are being delivered to a Mailbox server by using encrypted Exchange RPC.
Mailbox server roleAn Exchange Server 2007 server role that provides e-mail storage and advanced scheduling services for Microsoft Office Outlook users.
mailbox userA mail-enabled Active Directory user object that has mailbox attributes. [Exchange 2007]
managed content settingsSettings that are applied to the managed folders in users' mailboxes to control the retention and journaling of messages for messaging records management…
managed custom folderA type of managed folder that is created by an Exchange administrator and placed in a user's mailbox for messaging records management (MRM) purposes.
managed default folderA mailbox folder (such as the Inbox folder) that appears in Office Outlook by default and to which messaging records management (MRM) has been applied.
managed folderA folder in a user's mailbox to which messaging records management (MRM) has been applied.
managed folder assistantA Microsoft Exchange Mailbox Assistant that creates managed folders in users' mailboxes and applies managed content settings to them for messaging records…
managed folder mailbox policyA logical grouping of managed folders. When a managed folder mailbox policy is applied to a user's mailbox, all the managed folders that are linked to the…
matched name selection methodThe mechanism used to help a caller differentiate between users with names that match the touch-tone or speech input. [Exchange 2007]
message dehydrationIn Exchange Server 2007, the removal of unnecessary elements, such as MIME content, from queued messages that are cached in memory.
message envelopeThe information contained in an e-mail message that is required to send and deliver a message between messaging servers by using SMTP protocol commands.
Message HeaderMessage headers generally contain the identities of the author and recipients, the subject of the message, and the date the message was sent.
message trackingThe tracking of events from the time a message enters an Edge Transport server or Hub Transport server to the time it leaves the any of the Edge Transport…
Microsoft Exchange Hosted ServicesA set of four distinct hosted services: Hosted Filtering, which helps organizations protect themselves from e-mail-borne malware; Hosted Archive, which…
Microsoft Exchange Mailbox AssistantsThe process that runs on a Mailbox server and performs background processing of mailboxes in the Exchange store. [Exchange 2007]
Microsoft Exchange Troubleshooting AssistantA Microsoft Exchange tool that is used to automatically determine what set of data is required to troubleshoot symptoms that are identified.
migrationMoving files to another computer application or platform; may require conversion to a different format.
missed call notificationAn e-mail message that is sent to a Unified Messaging subscriber that indicates that someone called but did not leave a message. [Exchange 2007]
mixed modeThe default operating mode of Exchange when it is installed. Mixed mode allows Exchange 2003 and Exchange 2000 servers and servers running earlier…
MNS (Majority Node Set)A type of cluster quorum model in Windows Server 2003. Exchange Server 2007 uses a new type of MNS quorum with file share witness to support failover…
MonadThe code name for the Windows command-line shell technology and scripting language that provides a task automation solution for the Windows platform.
moveThe task of moving an object from one location to another, such as moving a mailbox from one server to another.
MRM (messaging records management)Records management technology in Exchange 2007 that helps organizations to reduce the legal risks that are associated with e-mail and other communications.
multifactor authenticationAn authentication method that requires two or more authentication methods, which may include something the user provides, such as certificates; something…