They’ve recently released desktop integration, meaning that you don’t have to use their web page any more. Now you can send and receive encrypted Protonmail directly from within Outlook, Thunderbird and Apple email. Maybe in the “old days,” Hushmail might have been the standard. But today, maybe Protonmail should be.

https://venturebeat.com/2017/12/06/protonmail-expands-encrypted-email-service-to-desktop-clients-including-outlook-thunderbird-and-apple-mail/

We’d appreciate it if you commented about your experiences so our entire community can hear how you like this relative newcomer to cross-cultural work.