[zwieback]

Very cool idea but would never use it with my corporate account where the interesting attachments are.

[elopez]

That's fair. Do you know what, if any, kinds of assurances or measures would make it viable for your corporate account?

[zwieback]

Sorry, I really don't but our IT has pretty strict rules about what we can do with our email. I'm guessing you would have to work directly with the corporate IT departments to make sure they can audit security.