Cool. Still not as convenient as it could be, though. "If the intended recipient is outside the sender's Exchange environment or if the sender is not using an E

Cool. Still not as convenient as it could be, though. "If the intended recipient is outside the sender's Exchange environment or if the sender is not using an Exchange account, the recipient's certificate must be installed on the device." What that means is by default any email you send would never appear "trusted" so... It's not a great marketing device. A green address bar does more to market SSL than its own advantages, sometimes. I'd argue that certificate trust -- even to say that the email address belongs to gmail.com, for instance, would do wonders to promote the technology. More on how it works in iOS: http://support.apple.com/kb/HT4979 http://support.apple.com/kb/HT4979 Sadly, no support on Android, since apparently on Gmail everyone only emails within Google services and never for businesses? ;-) Microsoft should promote SMIME in its online Exchange offerings more, to compete with Gmail.