Running your own email server. Receiving email is easier since mail routing and spam filtering has matured. But sending email is now hard with authenticating yo

Running your own email server. Receiving email is easier since mail routing and spam filtering has matured. But sending email is now hard with authenticating yourself everywhere and making sure you are not blocked by the big providers. I'd also say that even with letsencrypt it is harder to setup a web server than 10 years ago when you didn't need https at all.