Message folders

Folders are used by the Messaging Architecture to hold groups of other entries. Folders can be of the following types:

These are folders on the device, containing messages that have been composed locally, or copied/moved from a remote source. These folders are not intended for synchronisation with a remote server.

These are folders that are present on a remote mail server. The index can hold a complete or incomplete copy of a remote folder.

These are folders that are always present, and are created by the message server on its first startup.

These are folders that can be deleted, renamed, created, and moved by the user. User folders can be created within the root Local folder, and within other user folders. They can be nested as deeply as required. Some messaging protocols, such as IMAP4, may allow user folders on remote servers to be manipulated.