You'd think that by now Microsoft Outlook would be a pretty complete product. And it generally is, except that it doesn't do a number of things that it really ought to. Like these dozen features...
...of Windows 10, more Windows 10, and some other stuff
Windows 10 review: Microsoft goes back to the future
Windows 10 'Service Release 1' coming this month
These ten Lumias will be first to get Windows 10 Mobile
The Redmond Report - Episode 4: Windows 10 gets hit by lightning