Encrypted email maybe works if both you and your counterparts are power users that know how to use GPG, or how to properly configure it through Thunderbird or a

Encrypted email maybe works if both you and your counterparts are power users that know how to use GPG, or how to properly configure it through Thunderbird or any other email client. The moment you have to implement encrypted emails in a high-risk organization or ad-hoc collective, it all goes out the window. There are simply way too many pitfalls to get it working properly. You have to continuously educate your users and ensure they don't shoot themselves in the foot.