Moreover, in January 2004 the U.S. Government has passed the CAN-SPAM Act, a law backed overwhelmingly by spammers and large corporations, because it legalized spamming instead of banning it. With the passage of CAN-SPAM, spamming has become legal throughout the United States. Now 23 million U.S. businesses can all begin spamming email addresses as long as they give users a way to opt-out. What CAN-SPAM makes illegal is the use of open proxies or any form of resource misappropriation as well as use of false headers, which for the top spammers to avoid is business as usual.
