On Thursday 03 September 2020 01.58:18 Steven D'Aprano wrote:
> I find it ironic and a bit
> disturbing that you don't mention the company that comes closest to
> controlling half of all email share, Apple, but do kick the dead horse
> of Microsoft's non-existent email monopoly.

I wrote "like...". I did not try to list them all.
I was never forced to communicate with an Apple mail server (or if so did not 
notice it). I am forced to use an office.365 server, and 90% of the people I 
work with use Microsoft Office and not some Apple Office (although the 
students use Pages on their iPads).

> (One might make a case for MS still having a near monopoly on the
> desktop OS, but that is less and less relevant today as more and more
> computing is done outside of the desktop.)

I doubt that many mail servers are run form mobile devices, and obviously not 
all mail servers are Linux based.

As to mail clients, I am certainly old fashioned, but my life is on the 
desktop. Laptops and even more phones are used only when unavoidable. And I 
own no Tablet and never could find a use for it.

So take my writing as a personnal opinion rather than some case study :)

Thierry