The certificate used to sign the message was issued by a certificate authority whose own certificate has been revoked. You should not trust the validity of this message until you verify its contents with the sender.
Mezu hau sinatzeko erabilitako ziurtagiria jaulki zuen autoritatearen ziurtagiria bera ukatua izan da. Ez zinateke mezu honetaz fidatu behar edukia egilearekin egiaztatu arte.