Can I determine whether MFMailComposeViewController will use S/MIME or not?

Question

I would like to use standard MFMailComposeViewController but I need to tell user, whether message that was sent was sent with S/MIME (in fact I need to disable email creation if S/MIME is disabled). I understand that it is a strange request, but anyway, is it possible?

Answer 1

No, not via public APIs at least. Besides, why on earth do you need this?!