Reply To: Sell Chometz, virtually?

The kinyan (exchanging a pen or gartel or whatever) is just a way of making it clearer. There is no inherent reason why one can’t make a contract over the internet (or through the mail), either by halacha or the goyim’s law. The only issue if proof of identity (ask for a moment if in the past you had to show your passport or drivers license or ID card when selling hametz).