I read about your problem and concerns with getting snuff. If you are interessted in Poschl snuffs, like volunge mentioned I could offer you buying Poschls here locally. A 10 gram tin of Gletscherprise costs 2,50 or 2,70 EURO. I dont know the price exactelly. If you have PayPal I could send it to Italy. Dont know about the shipping costs but I could get you some snuff. I dont plan any orders now, but the stuff that could be bought locally is no problem.
Neffa is not sold here locally, unfortunatelly.
Maybe this could be a temporary source for you. ;)