How can yo ucheck to see if someones email account is still open or if it has been turned off?

I don't mean if someone has turned their account off themselves, i mean in a situation where someone did not pay their internet bill and their service has been shut off.

How can yo ucheck to see if someones email account is still open or if it has been turned off?
Yahoo knows about your problems and has advise to help you fix it: http://help.yahoo.com/l/us/yahoo/mail/or...

geological survey