Orange boîte mail

You're referring to the iconic orange mailbox!

In French, the word for "orange mailbox" is "boîte aux lettres orange". Here's a breakdown of the phrase:

• "boîte" means "box" or "mailbox"
• "aux lettres" means "for letters"
• "orange" is the color of the mailbox

So, "boîte aux lettres orange" literally means "orange letter box" or "orange mailbox".