MailProof

MailProof is a web app (with optional mobile companion) that helps small businesses and agencies run direct mail campaigns with real attribution instead of guesswork. You upload a mailing list, choose a postcard/letter template, and MailProof generates per-recipient QR codes, short links, and unique offer codes. It then ties visits, calls, and purchases back to each mail drop and segment, producing a simple ROI dashboard that shows what actually worked. The app also runs pre-send checks: NCOA/CASS-style address validation via partners, duplicate suppression, and “likely undeliverable” flags to reduce returned mail. This is not a printing company; it integrates with print-and-mail vendors so you can swap providers without rebuilding campaigns. The goal is to make direct mail measurable enough that performance marketers will keep using it.