About MailProof

Mortgage and refinance solicitations often lead with an attractive rate or payment while placing the assumptions that change the real cost somewhere else. Most households know when something feels off, but they have no fast way to prove why.

MailProof turns a photograph of that letter into a clear verdict, potential red flags, and a monthly-cost comparison grounded in current market rates. The goal is not to speculate about a sender—it is to make the letter's own numbers easier to understand.

We are beginning with mortgage mail, where small omissions can affect large dollar amounts. Over time, the same fact-first approach can help people evaluate other confusing financial and household solicitations.