From the article: Request a Manual Postmark: Customers may present a mail piece at a retail counter and request a "manual (local) postmark". This postmark is a

From the article: Request a Manual Postmark: Customers may present a mail piece at a retail counter and request a "manual (local) postmark". This postmark is applied at the time of acceptance, so the date aligns with the date the USPS took possession. I should have said manual postmark but it’s what I implied. They’re stamping or postmarking it with a date manually.