BSD “Supposedly?” Supposedly? Ask your rav if based on “supposedly” you can libel someone.
Wikipedia is your friend:
Libelous hoax email
An email saying that Hilfiger appeared on the Oprah Winfrey television show on “28 November” and made racist remarks, and calling for a boycott of Hilfiger’s merchandise, has circulated widely. It was first seen in 1996, seemed to disappear, but reappeared and was still in circulation as of 2011[update]. Winfrey made clear on her show and website in 1999 that Hilfiger had never appeared on her show until then, much less made the remarks attributed to him in the email; and Hilfiger paid investigators, who traced it to a college campus but could not identify the perpetrator. Allegations were reported to the Anti-Defamation League; they wrote to Hilfiger in 2001 “We have concluded that these rumors are completely false, and it is apparent that you never made the statements attributed to you, nor did you appear on The Oprah Winfrey Show”. Hilfiger appeared on the Winfrey show on 1 January 2006, where he and Winfrey repeated that he had not appeared before. Winfrey said about the email “You’re supposed to say, ‘That’s a big fat lie.'”