Why isn't there more shouting about this? This is the USPS undermining mail-in ballots. They find every opportunity to subvert voting and democracy.
Ballots, tax returns and other important mail may not get postmarked the day you turn it in, USPS warns
https://www.cnn.com/2025/12/31/politics/usps-postmark-rule-change-mail-in-ballots
@jeffjarvis Where I live I can drop a ballot at a government box and receive an email receipt. But if I had to rely on the post office, I would take it to counter and request (and receive) and manually post marked mailing.