I get where you’re coming from, but given the cost of equipment these days, it’s important to consider whether or not the zero-config big box brand stuff will be around long enough to be worth the cost. While it’s a PITA to spend your efforts setting this all up, doing it yourself using open protocols can be worth it in the long run. And 9 out of 10 times, when you do it yourself, you can just leave it alone and forget about it.

Edit: there is a good write-up between zigbee and matter, and for ease of use it looks like matter would be better for your use cases.

I think what you’re looking for is called a “Catch-All” or wildcard email address. Basically it looks like this: *@yourdomain.tld, and you would set it up to forward to a real email address of your choosing.

These are typically managed either via your domain hosting provider, or possible through your email provider.

Be forewarned, this does open you up to getting more spam because everything is a valid email address.

What’s more disturbing than the filmmakers continually trying to get the ips, is that the courts keep entertaining the filmmakers. At what point does the legal system say enough?