@8
It must be banned on your end. As it's definitely not banned where I am.
@9
The "true" Windows Mail that was in Vista/7, indeed was sadly discontinued once Windows 8/10 came around, as Microsoft wants you to use their app from the Microsoft Store.
@everyone
An alternative to the normal mail clients I'm gonna check out is Mailbird from https://www.getmailbird.com/ , though I haven't installed to see how accessible it is yet. That's what I'm doing as I write this post.
Update
Well? The set up of Mailbird is accessible. Sadly, the interface is not.
At least, not as good as it should...
There's both a free version and a paid one.