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

If you’re mailing something with a firm deadline, the U.S. Postal Service has a change you’ll want to know about — and it could mean the difference between ...

For decades, a USPS postmark has served as official evidence that mail was sent on time. In elections, many state laws treat a ballot as valid if it is postmarked by Election Day, even if it arrives ...

SPRINGFIELD, Mo. (KY3) - In late July, the U.S. Postal Service cut back on services for nearly half of Missouri’s ZIP codes by reducing mail collection from morning and evening to morning-only ...

Changes at the U.S. Postal Service are forcing people who rely on postmarks when voting, filing taxes or mailing legal documents to be extra careful when cutting it close to deadlines. Postmarks ...