I think we are currently in a phase because of phishing problems. Corporate filters are currently turned up to eleven, but hosting your own server is still very

I think we are currently in a phase because of phishing problems. Corporate filters are currently turned up to eleven, but hosting your own server is still very well possible. SPF/DKIM/DMARC helps, but isn't required. You really think the corps that do host their own servers have set that up? It is far more widely spread by enthusiasts that host their own servers. We also should keep mail for pseudonymous and anonymous user authentication. There are a lot of threats to the free internet right now and user account consolidation is one of it. I agree that people should keep hosting themselves. Someone blocked you? Their loss, let them rant to their internal IT about it. Corporations or institutions that use Google as a provider should be seen with scepticism.