What is the mailing panel size and format requirement for folded postcards?

4OVER4 provides mailing-panel templates for folded postcards that comply with postal requirements, so the address and postage areas land in the right place.

• Download the template for your chosen size from the product page
• Follow it so the address block and postage area sit in the correct spot
• The mailing panel reserves clear space for the address and indicia
• Staying inside the template helps the piece qualify for mailing without a redesign

Using the size-specific template from the start keeps your folded postcard mail-ready on the first submission.