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If business really wanted end to end un-eaves-droppable confidentiality they would have mandated S/MIME years ago. The very nature of a store-and-forward protocol without end to end encryption pretty much guarantees you don't have confidentiality unless the entirely of your communication is within your organization, and even then, it's not really secure because most business organizations did not run internal encryption.The problem with S/MIME is that it requires a CA to sign that certificate. There's actually very few S/MIME CAs out there. Part of the reason S/MIME was always preferred in a corporate setting (over PGP) was that it could be decrypted by gateway border systems, ie administrators. Office 365 also introduces Office Messsage Encryption (OME) which is basically a temporary mailbox on their server. (Like Tutanota, or OpenExchange mail Guard) for external communication.
Encryption is also not really needed when you're all emailing each other on the same company server, which is most often the case. Even when stuff is outsourced there's usually legal service level agreements to maintain basic confidentiality.
> Yes, Email is not going to die for internal business communication, but it will transform, and interactivity and dynamism are inevitable. Lotus Notes is a great example of this. Email is often used for workflow, for updates of real time information, and spamming people with status messages that link to dashboards is a productivity hit and produces information overload.
I don't think it will. Just because Google wants to do amp4email doesn't mean everyone else will. Email has been getting more secure with things like MTA-STS, but those have gone through the IETF. I don't think it will see any adoption outside of the Google ecosystem, particularly without a RFC.
Email is very much has a "you said this on this date", and it is as if someone sent you a letter in the postal mail. I don't see amp4email getting any use in the business world. I think it will mostly be for "promotional email" aka spam you've agreed to get from companies that you've done business with before and didn't uncheck that box that says "notify me of all your offers...".
Google also has a history of trying things out then canning them in the future. Anyone remember Google Wave? that was 'totally going to replace email as we know it'.