And it's really nice that they're actually using the physical address for this instead of the given email address. Especially since some imbecile put my email address in when ordering her tests. I was concerned that I would not be able to order my own since my email was already used. But no, I was able to.

USPS gets points for practicality and execution, but is yet another service that performs zero email address verification and ends up with idiots that don't know their own email sending me their info.

Would it matter? The address has to be valid and once input it is the unique key. I didn't see any address validation on my end (which is also an option for other forms).