Nobody but the USPS is allowed to put anything in or remove anything from a mailbox. If you're talking about a separate locker, not a bad idea but I'd assume t

Nobody but the USPS is allowed to put anything in or remove anything from a mailbox. If you're talking about a separate locker, not a bad idea but I'd assume that would be a lot more costly than replacing your lock and also would introduce all sorts of variability about size and where it would be placed.