Postbox

The Postbox emoji visually represents the postbox named in its title. It is a recognizable object pictograph whose primary meaning is literal, rather than an emotion or reaction with one fixed hidden meaning.

People use it in conversations about mail, messages, deliveries, invitations, and communication. It can identify the subject directly or work as visual shorthand in captions, lists, labels, and emoji combinations, with the surrounding message supplying the exact context.