skippoboxcom skip montanaro greg otoh look dcc distributed checksum clearinghouse greg httpwwwrhyolitecomantispamdcc uses fuzzy greg checksums quite likely dccs checksumming scheme greg better something us would throw together personal greg use offense skip none taken wrote little script aware dcc existed even seems like overkill use skip mon 9 sep 2002 143504 0500 spambayes deleting duplicate spam training good idea