Pricey but flexible by E. B. at InsiderPages
Eagle postal center has many locations throughout the Dallas area. If youre looking for P.O. Boxes, they have them. Whats different about them is that they use street names for the address of the P.O. boxes. Also, the center stays open 24 so you can check your mail. Heres the catch. Its way more expensive than your average US Postal post office box. You pay for the convenience.
Read more at dallas.citysearch.com