I entered an invalid address on my own server into the verifier form and received: deliverable: Yes valid format: Yes disposable: No server status: Yes

I entered an invalid address on my own server into the verifier form and received: deliverable: Yes valid format: Yes disposable: No server status: Yes role: Yes free: No email user: nobody email domain: zzo38computer.org I don't know what all of that means, but the address is not valid and you cannot send messages to it.