Functional. Does not delete email unless you open the message, then you have increased your chances by 1-5%, or 95% that it will reappear. GOOGLE! There are intelligent users out here. We are NOT dumb as you want to think we are. We are very capable in determining whether we want to read a message or to promptly delete it by the sender and/or subject. It is ASSININE to have to open a message that we will ultimately delete. It is a security risk to open messages that WE KNOW is junk.