A method and system of processing a mailing label through a postal service are provided. The method includes causing, by a computer system associated with a postage provider, a mailing label for mailing a mail piece to be generated, the mailing label including a tracking mark; receiving, by the computer system associated with the postage provider an indication that the tracking mark is detected when the mail piece is inducted in the mail stream or during transit of the mail piece in the mail stream; and creating, by the computer system associated with the postage provider, a record of a transaction for an amount of postage based on the received indication that the tracking mark is detected.