Microsoft's new Outlook takes 10 seconds to do what Outlook Classic does instantly on Windows
(www.windowslatest.com)
O.... Gmail.
But I've had it for so long. I was literally a beta tester way back when.
On the other hand I have an android phone so it's Gmail or bust. There's no real way to use an android with it. And since I need email for extremely basic correspondence I don't bother moving to a different one.