COMPUTER SOFTWARE FOR DISPLAYING MULTI-CARRIER RATES AND TRACKING MAIL PIECES; SOFTWARE FOR CONTROLLING COMPUTERS FOR METERING OF POSTAGE, PRINTING OF POSTAGE INDICIA, DESIGNING GRAPHIC MATTER FOR PRINTING ON MAILING ENVELOPES, AND CREATING MAILING LISTS; ADDRESS CORRECTION SOFTWARE FOR SELECTION OF MAILING LISTS VIA THE INTERNET; SOFTWARE FOR DESIGNING MAIL PIECES; AND ELECTRONIC POSTAGE METERS AND SCALES