The problem I’ve been seeing with email on my own domain is that some services refuse it, saying “please enter a real email address” 🤬 some others just silently refuse to send a confirmation code so I can’t register either (I think tinder did this)

And with proton I got “Anonimisation services are forbidden” once at least.

I forget which services, but it’s Hella annoying…

The marketshare of Google and Microsoft on email is really becoming a problem.