Alcove does not handle mail for any home on our platform. For homes with a locked mailbox, obtaining the mailbox keys is the responsibility of all roommates at the property and must be completed at your local post office with a signed copy of your lease (found in your portal) if not already provided.
We would recommend to ask your roommates if they have already obtained a mailbox key, and if so, ask where the shared copy is in the home. If no one in the home currently has a mailbox key, please arrange this with your local post office.
Additional information on obtaining a mailbox key can also be found here: https://faq.usps.com/s/article/Locked-Mailboxes-and-Mailbox-Keys