Yellow Letter

A yellow letter is a direct-mail staple in real estate: a short, handwritten-looking note — frequently on yellow legal paper — that reads like a neighbor reaching out rather than a corporate mailer. The personal feel is the whole point, since it gets opened and read at higher rates than an obvious printed postcard.

Yellow letters typically pull stronger response rates than postcards but cost more per piece and are slower to produce at scale. Investors weigh that response-rate lift against the higher cost per lead, and often mix yellow letters with cheaper postcards across a multi-touch direct-mail sequence.