So yet another "end to end encrypted" email "solution", where both ends are controlled by a single vendor.<p>There are already two, count them, TWO, existing, open, well-understood ways to both sign and encrypt email between two parties: PGP, and S/MIME.<p>Currently, the UX around setting up and using each of these tools is.. less than stellar.<p>Now. Just go with me here. What if all the people who keep claiming to have "solved the encryption problem" by locking everyone into their own little silo, instead of doing that, WORKED ON SOLVING THE USABILITY PROBLEMS?