This is the Distributed Checksum Clearinghouse (DCC) package, including the command line (e.g. procmail) interface, dccproc; the SpamAssassin and Postfix interface, dccifd; the Sendmail milter interface, dccm; the DCC server, dccd; and the DCC greylisting server, dccd-grey. Also included are utilities such as cdcc and all of the manual pages and documentation. WWW: http://www.rhyolite.com/dcc/