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 …...AttachSignature issue? Aspose.Email Product Family...SecureEmailManager().AttachSignature(msg, CmsSigner, New SignatureOptions...