The shipping and delivery standards for Express Mail service are intended for household/organization consumers and Subsequently are sent by 12 midday or 3 p.m. Express Mail Open and Distribute is an item that is definitely sent to a processing facility or delivery device for more processing from the contents. https://usps-usps-retail-ground48259.theisblog.com/19559343/rumored-buzz-on-usps-prepaid-forever-priority-mail-flat-rate