Everybody I know who still runs their email server (you can get Europeans out of Europe, but you can't get Europe out of the Europeans) complains about Microsoft.
I bet Microsoft is single-handedly responsible for 80+% of complaints about email being impossible to host.
In a federated / pseudo-decentralized network, any provider with 10+% of captive users has an outsized leverage on the entire ecosystem. You don't need a monopoly; as long as you have a monopoly on just a few users that others absolutely need to be able to interact with, you can dictate terms to everybody.
> I bet Microsoft is single-handedly responsible for 80+% of complaints about email being impossible to host.
They are the reason I dropped self-hosting my mails. They were silently dropping some of my mails depending on the day I sent them. If they were at least sent to the spam folder, it would be easier to communicate with their users. And since a lot of their users are not technical at all, it's complicated to explain them the issue.
Not just email - their identity / SSO system is just as fucked
more like 98%
It's absurd in every way. I was trying to get it to stop spamming maillist traffic. It's impossible. Global level filters enacted as admin to not spam check are ignored.
Don't forget Google! Gmail will hide your email for no reason no matter what you configure on Gmail's side of things. At least Microsoft has a "please remove me from your spam lists" form (that only worked for ipv4 IP addresses last time I tried).
Yahoo were annoying and I'm happy the collapsed solely because of that
Google is no better. It's quite absurd, they even went through the trouble of creating postmaster tools to help you manage your reputation - except that these don't work unless you have fairly high sending rates (I forget, but I think several hundred a day). So essentially they're actively hostile to personal and small business servers.