What do different drop slots do in the USPS office?

What do different drop slots do in the USPS office? mailbox drop slot Custom Engraved Mail Drop #2266R Features & Specifications Custom engraving is available as an option for mail drop; Examples of custom engravings are mailbox with slot and lock Chute or often referred to as a sleeve is attached to each mail drop Shop Categories Division 10 Products · Mailboxes and Storage · Package Drop Boxes

mailbox with slot and lock OPEN BOX Door Drop Box, Mail Slots, Through The Door Locking Mailbox, Black

mailbox for door slot mail drop slot When he saw clutter on the floor , he knew something was wrong because he knew Nana would not have left the house a mess When he checked A through the wall mail slot is a convenient way to allow customers or employees the ability to drop off small packages or envelopes without needing to come in