A public box for deposit of mail, where it is later picked up by the postal authority for delivery.
A private box to recieve delivery of mail. The term is used both for boxes receiving mail delivered by the public postal authority, or by a private services, such as for mail to employees in large corporations.
A destination where mails are sent to. It is more general than your in-box that contains the mails delivered to you. A mailbox can also be a program (which prints the mail to a printer) or other things.
a private box for delivery of mail
an endpoint for mail delivery -- a place where mail waits to be read
an endpoint for mail delivery within some local domain
A delivery point for a trading partner on a value added network (VAN).