So how bad is the current situation of not being able to self host email? Supposedly, it's becoming harder to self-host because Gmail would blacklist entire IP ranges if a single server from said range is known for spam which supposedly makes it much harder to self host.
But I see a lot of people still self-hosting and saying that they don't have any problem. I like to do nslookups on various small business and organization websites and a lot of them still self-host (or use a VPS) with no problem.
I think that one article exaggerated the situation.