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Rydych wedi galluogi amgodio 'dyfyniad-argraffadwy' ar gyfer anfon negeseuon. Gall hyn arwain at ddadgryptio anghywir a/neu ddilysu'ch neges. Ydych chi am ddiffodd anfon negeseuon 'dyfyniad-argraffadwy' nawr?