I am pretty sure that all post office boxes that are owned by USPS are rented. It is very common to have all mail delivered to a box in the city What is silly is that its Yale… There really could be a system or student job in each college that sorts the mail. I suggested this to my daughter but she said that she would not want another student rifling through her mail. It is a personal thing to her so perhaps that is why they just don’t do this. I do think its silly though that they have individual RC’s that could have mail sent to it and instead its sent to a horribly staffed PO.