No valid and trusted encryption key was found for "%1". Select the key(s) which should be used for this recipient. If there is no suitable key in the list you can also search for external keys.
Mae mwy nag un allwedd yn cydweddu â "% 1". Dewiswch yr allwedd( au) a ddylir eu defnyddio ar gyfer y derbyniwr yma. if in your language something like 'key( s)' isn' t possible please use the plural in the translation