Yes. To ensure your postcard size and postage space allocation adheres to the bulk mail USPS mailing standards, please view our mailing design template. If PostcardMania is designing your bulk mail postcards for you, we will make your design fit within bulk mail regulations so it sends smoothly. Note, it is VERY important your postcard size for your postcard stamp fits, which is why our account representatives eyeball every single postcard design that goes to print.