Omega World Travel, Inc. v. Mummagraphics, Inc., 469 F.3d 348 (4th Cir. 2006), is a case in the United States Court of Appeals for the Fourth Circuit in which Mummagraphics, Inc. sued Omega World Travel, Inc. (Omega) and Cruise.com (a fully owned subsidiary of Omega) alleging that they sent 11 commercial e-mail messages in violation of the Controlling the Assault of Non-Solicited Pornography and Marketing (CAN-SPAM) Act of 2003 as well as Oklahoma state law. In the initial filing, the United States District Court for the Eastern District of Virginia had awarded summary judgment to Omega on all of Mummagraphics' claims finding that the commercial emails from Omega did not violate the CAN-SPAM Act, and that the CAN-SPAM Act preempted Oklahoma state law. The Court of Appeals affirmed. The appellant (original plaintiff) was Mummagraphics, Inc., an Oklahoma corporation with its only place of operation in Oklahoma City. It provided web based services and hosted websites devoted to opposing spam messages. These websites included sueaspammer.com and OptOutByDomain.com. Its president was Mark Mumma. The appellees (original defendant) included Omega World Travel, Inc. and Cruise.com. Cruise.com was an operator of a website that sold cruise vacations. It sent email advertisements, also known as “E-deals,” to prospective customers.