The message was either printed, faxed, or forwarded without being displayed to the recipient. There is no guarantee that the recipient will read the message at a later time.
Cafodd y neges ei hargraffu, ffacsio neu anfon ymlaen heb gael ei dangos i'r derbynnydd. Nid oes gwarant y bydd y derbynnydd yn darllen y neges yn diweddarach.