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 …...OLE.CLASS is still not supported...like Exception Recurrence : IPM.OLE.CLASS is still not supported...