I was actually agreeing with you, in that running a private mail server is not a difficult endeavor as long as you take those things into account. Most VPS and CSP will block SMTP by default (just recently went through this with AWS, had to specifically request the service) since most everyone doesn’t have a clue how to secure mail relays and stay off blacklists.

Google, Live, AOL, Yahoo etc might hassle you for DKIM or SPF, but in my experience the ISP is the first hurdle.

If anything it’s the ISPs that will hassle you for outbound SMTP. There are ways around that but generally blocked by default

There are dozens of us!

Uncle Tony is gonna do a little demo! We’re gonna rock GustavoM’s world

emacs?! set -o vi unless you just want to see the world burn

(I’m kidding, I use the emacs shortcuts in bash, but vim is my goto text editor)