Re: Perfect timing
"Having heard nothing specifically awful about W10s mail app, I almost thought I might give it a shot. I guess I'll give Apple a one, next time. I absolutely hate them, but they can't be even worse than Windows 10. Nothing could."
Why not Thunderbird, which runs on Windows, MacOS, and Linux? It's been reliable for me for the last ten or more years, on both Windows and Linux, and has an extension for secure email.