My colleagues from the linux.org.ru board have found out one small flaw, so everyone including me stared to dance around PGP/GPG. So far I have found that among my systems:
- Linux works as it should: two mouse clicks and you are ready. Covers 100% of my work mail, 75% of my personal mail.
- Mac OS Sierra is not ready: GPG Suite has no support for the mail.app yet, just a workaround (yet). Hopefully we will see the solution in days.
- iOS has only S/MIME out of the box, but GPG/PGP solution is ugly (due to restrictions).
And I don’t like install software that does not come with the operating system, for a reason :-)