Kleffman v. Vonage Holdings Corporation, et al.


U.S. Court of Appeals for the Ninth Circuit

Obtained dismissal of purported anti-spam class action that attacked, alleging various legal theories, commercial email advertisements for Vonage services sent from multiple domain names. 2007 WL 1518650 (C.D. Cal. May 22, 2007). Affirmed by the Ninth Circuit, 2010 WL 2782847 (9th Cir. July 13, 2010), after the California Supreme Court answered the court's certified question and held that multiple domain names do not constitute misrepresented email header information under California Business & Professions Code § 17529.5 and noted that a contrary conclusion would result in preemption of the claim under the federal CAN-SPAM Act, 15 U.S.C. §§ 7701-7713. 49 Cal. 4th 334 (2010).