I've been hosting my own email server since 1999. It started in San Francisco, moved to a colo in socal for awhile and is currently in my cellar here in Zurich

I've been hosting my own email server since 1999. It started in San Francisco, moved to a colo in socal for awhile and is currently in my cellar here in Zurich on a fixed residential ip. Thinks have definitely gotten stricter over the years, with things like dkim and a few other acronyms I can't remember. But if you follow the rules and keep your server secure I've never had a problem sending to Google, Microsoft, etc. I'd rather not host my own mail but I like having it close by where if someone wants to subpoena me they factually have to go through me. Also I have so much historical email (27 years) it is GBs and so costly.