L' examen de les preferències de signatura del destinatari ha mostrat que el missatge s' hauria de signar usant OpenPGP, per a alguns destinataris com a mínim. Malgrat això, no heu configurat certificats de signat OpenPGP vàlids per a aquesta identitat.
Examination of recipient's signing preferences yielded that the message should be signed using OpenPGP, at least for some recipients; however, you have not configured valid OpenPGP signing certificates for this identity.