What are personal Email folders?
Personal folders are the user-defined folders you add via the button located beside the Email label. You can create and name folders for the personal organization of mail messages up to a system defined limit. User defined folders can be added, renamed, removed, and emptied. You can add these folders at the top, or parent, level or as sub-folders. Sub-folders can be added to sub-folders. Personal folders will appear below the system folder list, after the Trash folder, with a small spacing separating the system folders from the personal folders. Sub-folders added to system folders appear below their parent in the System Folders list.