general delivery 
noun
North American term for poste restante.As I have no mailbox yet at all, and have used nothing but the P. O. box for all of my correspondence for years, I will have to go with the general delivery option, at least for the time being....
- Till then, remote farming families had to trudge through all weathers to the nearest township to pick up their mail care of general delivery.
- ‘Well, we only do general delivery for thirty days.’