Important things to consider when sending a package to Spain.
Please note that the Canary Islands are outside the EU VAT area and when sending there, you need to fill out a commercial/proforma invoice.
Including money and other valuables and securities. Lottery materials, playing cards and gambling-related items, sports weapons, tobacco, indecent publications, and saccharin.
Other restrictions apply to religious objects and related accessories.
You can find more restrictions in dangerous goods and prohibited shipments sections.
Also note the specific restrictions for different shipping companies.