Invalid Express Mail Corporate Account Numbers

These numbers are to be posted and used by retail/acceptance clerks. This listing supersedes all previous notices, which must be recycled. Retail/acceptance clerks must not accept Express Mail^® shipments bearing any of the invalid numbers (listed below) in the “customer num­ber” or “agreement number” section of the label or form.

Note: The first 6 digits of a 9-digit Custom Designed Ser­vice and Next Day Pickup Agreement make up the Corporate Account Number.

— Product Information Requirements, Mailing Services, 12-4-08