Are there really? I don't think I've ever encountered such a service in all the years I've been using an email address under my own domain. And blocking every email address that's not from a big provider means blocking basically everyone who tries to sign up with their company email, which might not be great for business.

>there are a lot of services which, unfortunately, only allow sign-ups from big, well-known domains.

I have never encountered one.

Nah. I have hosted my domain for 17 years on google and then fastmail. The hosting is harder than private relay, although not too hard.

But I have only had maybe 3 services ever reject my domain, and those were because the domain contains a number.

Less private, but the most common case is actually anti-harassment.

Plenty of providers, but perhaps Apple needs to be forced to open up hide-my-email-providers for others.

Only the EU is capable of doing such thing

I have had my own domain for mail for 10 years. I have yet to ever see a service which didn't let me sign up with it. I'm willing to believe that such services exist, but I dispute the claim that there are a lot of them.

I've had my own domain for email for twenty years or so now, and I've encountered maybe one signup form that didn't accept it. What you're saying is definitely not true, and I would highly recommend using your own domain for email (preferably with Fastmail, it's fantastic).

I mean none of this is accurate, but sure.