This message does not include the sender's digital signature. The absence of a digital signature means that the message could have been sent by someone pretending to have this email address. It is also possible that the message has been altered while in transit over the network. However, it is unlikely that either event has occurred.
Nid yw'r neges yn cynnwys llofnod digidol yr anfonwr. Mae absenoldeb y llofnod digidol yn golygu bod modd i'r neges ddod gan rywun sy'n cogio mai ei gyfeiriad e-bost yw hwn. Mae hefyd yn bosibl fod y neges wedi cael ei newid wrth deithio ar draws y rhwydwaith. Er hynny, mae'n annhebygol fod yr un o'r ddau wedi digwydd.