Mail USPS mailboxes are located throughout Potomac Greens driveways in gray banks of eight-box units. Your mailbox is likely located at one end of the driveway leading to your garage. You should have received a key to the box associated with your Potomac Greens address when you closed on your house. Outgoing stamped mail (envelopes, not packages) can also be sent through these mailboxes, using the slot labeled “Outgoing Mail.” A key with a plastic rectangular key fob in your mailbox indicates that USPS has delivered a small package to you. Use the key to open the large door of the mailbox bank and retrieve your package. The key will automatically lock in the door, and a postal carrier will retrieve it. If you did not receive a mailbox key at your closing, or you’ve lost your key and need a replacement, contact Christie Beruete.