Another 15 came from foreign addresses - most were bounced off them because U.S. servers have closed mail relays. Much of the rest was enabled by such services. This failure of spam-enablers to police themselves has many consequences in Internet Commerce. Most Web stores I know won't take orders from such e-mail addresses. Most people in the Internet business won't take any e-mail from such addresses seriously, unless it's from a relative or close friend.
Many users routinely filter out e-mail from such URLs.
E-mail is a standard offering with commercial ISP accounts. Filters are standard on e-mail packages like Eudora, and there are more available on the commercial market. Anyone with a freemail address or Web site has two strikes against them in doing any business involving the Internet. A patent isn't a license to print money. It can, however, get you in the door on business deals that might or might-not make good.