The certificate used to sign the message was issued by a certificate authority whose own certificate has been revoked.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.
Chaidh an teisteanas leis a chaidh an teachdaireachd a shoidhneadh fhoillseachadh le ùghdarras theisteanasan a chaidh a theisteanas fhèin a chùl-ghairm. Cha bu chòir dhut earbsa a chur ann an dligheachd na teachdaireachd seo mus dearbhaich an seòladair an t-susbaint a tha ann dhut.