Canada Post has issued a ‘clarification’ about mailbox flags, saying they are meant for customers to signal outgoing mail – not for carriers to indicate incoming mail. (Aug. 8, 2025) ...

The SAM receiver not only provides the visual and aural mailbox activity alerts, but also uses customer's home Wi-Fi to send a notification to customer's smartphone using a subscription-free SAM app.

So its very disconcerting,” Brogadir said. They urged people to not leave outgoing mail in their mailboxes with the red flag up. They recommended mailing checks from inside of a post office.

TORONTO — Canada Post has told its carriers to stop raising the flag on mailboxes to indicate they've delivered mail.

The U.S. Postal Inspection Service doesn't recommend leaving mail or packages in blue, USPS collection boxes on Sundays, holidays or after business hours.

Rural residents recently received notice in their roadside mailboxes clarifying that Canada Post delivery agents will not be lifting the red flag to let people know mail has been delivered.

Canada Post has issued a ‘clarification’ about mailbox flags, saying they are meant for customers to signal outgoing mail – not for carriers to indicate incoming mail. (Aug. 8, 2025) ...