Multiple carrier mailing machine

A mailing machine for printing postal indicia as evidence of postage payment on a mail piece comprising:

• a printer subsystem having at least one print head for printing the postal indicia on the mail piece;
• a first processor operatively connected to the printer subsystem;
• and
• a plurality of postal security devices operatively connected to the first processor, wherein the first processor is configured to select a first one of the plurality of postal security devices to print a first postal indicium on the mail piece using one of the at least one print head.