post office box
In Italian, 'casella postale' refers to a secured box located in a post office where individuals or businesses can receive their mail. It is commonly used by those who prefer to keep their correspondence private or by businesses that want a separate mailing address. This term combines 'casella' meaning 'box' and 'postale' relating to 'postal' services.
I just received a letter in my post office box.
This phrase indicates that the speaker has received a letter that is stored in their post office box.
You need to check the post office box every week.
This sentence suggests that it is necessary to regularly check the post office box for any incoming mail.
The post office box is full of advertisements.
Here, the speaker mentions that their post office box has only advertisements, implying that they receive a large amount of junk mail.