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'Myth' no more: Why your USPS postmark may no longer match the day you mailed it

The U.S. Postal Service is warning customers that mail dropped in collection boxes may no longer receive a same-day postmark.

USPS New Year’s Day schedule: Blue Collection Boxes, Priority Mail Express – What’s open, what’s closed on 1 January

The USPS will close all post offices on 1 January, 2026 for 24 hours as it is a federal holiday. Operations will resume on 2 ...