While working offline, you cannot move or copy messages that were not downloaded for offline use. From the Mail window, open the File menu, choose Offline, then uncheck Work Offline, and then try again.
Tra'n gweithio all-lein, nid oes modd symud na chopïo negeseuon nad ydynt wedi'u llwytho i lawr ar gyfer defnydd all-lein. O'r ffenestr E-bost, agorwch ddewislen Ffeil, dewis All-lein, yna Gweithio All-lein, a cheisio eto.