The relevant email was sent to Rick Piltz, a UCAR employee at the time, and copied to Michael Mann, Pennsylvania State University, James Hansen and Gavin Schmidt, NASA Goddard Institute for Space Studies, Benjamin Santer, Lawrence Livermore National Laboratory, the late Steven Schneider, Stanford University, and several other very prominent climate scientists.
FORBES: Climategate II: An Open Letter to the Director of the National Center for Atmospheric Research