ELI5: Explain Like I'm 5

Poste restante

Poste restante is a type of mailbox service a post office can provide to its customers. When someone signs up for a poste restante account at the post office, they will be assigned an address. Instead of having to deliver letters or packages to a specific address, people can send mail to that poste restante address, and the post office will hold it there until the customer comes and picks it up. This service is helpful for people who are traveling and don't have a permanent home address.
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