This is not going to end well, is it?
Checking if Windows Mail implements RFC5750 correctly (S/MIME message signed not by From but by Sender) because it doesn't implement Reply-To at all. Yeah right. That's going to work.
Checking if Windows Mail implements RFC5750 correctly (S/MIME message signed not by From but by Sender) because it doesn't implement Reply-To at all. Yeah right. That's going to work.