We are excited to announce that ProShip is the first shipping engine vendor in the country to be MAC Cycle K recertified from the United States Post Office. This certification ensures that ProShip continues to be the best in carrier compliance and overall software quality and speed. The MAC Certification indicates both the superiority of our software and the strength of our engineers to pass the rigorous testing procedures.

Manifest Analysis and Certification (MAC) was developed by the United States Postal Service in cooperation with the mailing industry, to evaluate manifesting software. The process is available only to software manufacturers who actually develop manifest software either for retail or for internal use. MAC tests the ability of the manifest software to produce accurate postage and fees as well as quality documentation. It also provides a common platform to measure the quality of manifest products and determines their accuracy in accordance with requirements set forth in the Domestic Mail Manual (DMM) and Publication 401: Guide to Manifest Mailing. The purpose of MAC is to improve the accuracy of manifested mailings, thereby improving the flow of your mail.

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