Resources Informed Visibility® Mail Tracking & Reporting (IV®-MTR) External Facing Data Dictionary Informed Visibility® Mail Tracking & Reporting (IV®-MTR) Sample Data Set Informed Delivery® Post-Campaign (IDPC) Data through IV-MTR® Data Dictionary Informed Delivery® Post-Campaign (IDPC) Data through IV-MTR® Sample Data Set Enterprise Payment System IV-MTR Data Elements USPS Ship Data Dictionary Mail Quality Data through IV®-MTR Data Dictionary Informed Visibility® Mail Tracking & Reporting (IV®-MTR) Mail Object Navigator Data Fields