L

local message store

A message store provider that keeps its data on the user's local disk.

logon

The process by which a messaging user establishes a session with a messaging system through the MAPI subsystem. Logon typically involves the verification of the user's name and password and the user's selection of a valid profile. A user can log on to more than one messaging system at the same time.

logoff

The process by which a messaging user ends a session with the MAPI subsystem and the messaging system or systems it was logged on to.

long-term entry identifier

An entry identifier associated permanently with a MAPI object and unique in a global scope. It is stored with the object and in other appropriate places so that it can be used for multiple operations. See also short-term entry identifier.