The filing allows Christie to start raising money for the 2009 race.
The 46-year-old Republican with a reputation as a corruption-busting prosecutor has been flirting with a gubernatorial bid since resigning as U.S. Attorney Dec. 1.
Christie faces a primary challenge from state Assemblyman Rick Merkt and former Bogota Mayor Steve Lonegan.
Gov. Jon S. /*Corzine*/ plans to seek re-election.
The e-mail was first reported by The Star-Ledger of Newark on its Web site.