You can use the Wallapop Shipping service for purchases from both Spain and Italy.
There are currently no shipments available from/to Andorra, Republic of San Marino, Vatican City, or locations included in the following list: Locations excluded (applicable for shippings from/to Italy & Spain)
The application does not accept zip codes from excluded locations. Remember that in case of a return, the package will be sent to the address indicated by the sender.