It's not up to Google to encrypt your e-mail end-to-end, though. That you have to do yourself. This technology exists and is called PGP.
Obviously Gmail's HTML interface can't work with these e-mails, until you get some way to sandbox part of the DOM on the client. Search won't work either.
Obviously Gmail's HTML interface can't work with these e-mails, until you get some way to sandbox part of the DOM on the client. Search won't work either.