So everything seems pretty convenient, but do I give up rights or something like that with the signature? Is there additional attention or monitoring when signing such an agreement? I am not paranoid, because I can see the legitimate value of all services, it is just that, in these times, it is very wise to question everything! 2. Customers who choose to use road addressing also have the option to obtain packages from private carriers at the customer`s mailbox address if the packages meet the maximum standards of 70 pounds in weight and 130 inches in length and size combined. “A customer cannot use the road adrègement of his post office box as a registered office for the registration of his company. You would not operate your business at that address; You will only receive professional and/or personal mail to this address.