Fast-growing Luxer One, a Sacramento-based smart locker company, has acquired mailbox company MailHaven. The merger adds single-family homes to Luxer One's technology, which enables apartment complexes, corporate campuses and retail stores to offer automated package delivery that is secure and tracked. It also signals to a tenant that a package has arrived. Founded in 2015 in Louisville, Kentucky, MailHaven developed a smart mailbox that tracks and protects packages and connects to the owner...