The certificate used to sign the message has been revoked. You should not trust the validity of this message until you verify its contents with the sender.
Síníodh an teachtaireacht le teastas cúlghairthe. Ní ceart duit muinín a chur i mbailíocht na teachtaireachta seo go dtí go mbeidh a hinneachar fíoraithe agat leis an seoltóir.