The Local Delivery Module can deliver messages directly to non-INBOX Mailboxes. If the local part of the address is specified as box#name, then the message will be stored in the box Mailbox in the name Account.
The Account-Level rules are NOT applied if such an address is used.
You can use Direct Mailbox Addressing in the Router Table:
Note: remember that Mailbox names are case-sensitive.
Note: the Direct Mailbox Addressing feature can be used via the POP module, too. With the sample Router records listed above, when a user logs in using the name sales, the client POP mailer is connected to the Mailbox sales in the public Account (if the user has provided the correct password for the public Account).