Abstract: An automated flat mail piece comprising a bendable envelope and a bendable insert tray disposed inside the cavity of the bendable envelope that satisfies USPS requirements for automated flats. The insert tray has a rectangular base with a perforated line disposed centrally from each edge to its respective opposing edge, dividing the base into four segments. A flap is integrally connected to the base by two walls extending at substantially right angle from the base. A set of three bend-enabling score lines disposed co-linear with the longitudinal and transverse bend axes of the envelope enable lengthwise and widthwise bending of the envelope. Diagonal stress relief score lines cooperate with bend enabling score lines to lessen the effects of a crease. A stress relief score line is disposed diagonally extending from an outer bend-enabling score line at the envelope edge to a center bend-enabling score line.

Abstract: An automated flat mail piece comprising a bendable envelope and a bendable insert tray disposed inside the cavity of the bendable envelope that satisfies USPS requirements for automated flats. The insert tray has a rectangular base with a perforated line disposed centrally from each edge to its respective opposing edge, dividing the base into four segments. A flap is integrally connected to the base by two walls extending at substantially right angle from the base. A set of three bend-enabling score lines disposed co-linear with the longitudinal and transverse bend axes of the envelope enable lengthwise and widthwise bending of the envelope. Diagonal stress relief score lines cooperate with bend enabling score lines to lessen the effects of a crease. A stress relief score line is disposed diagonally extending from an outer bend-enabling score line at the envelope edge to a center bend-enabling score line.