Hello,
Using sgn As MapiMessage = New Email.SecureEmailManager().AttachSignature(msg, CmsSigner, New SignatureOptions With {.Detached = True})
sgn.Save(SaveTextBoxX.Text, ASPSaveSetOft)
End Using
Here source msg can …...message or Mapi item in Msg, Oft or Tnef format. The signed sgn...SignedMessage.Save(path, msg/oft options) The result will lose...