USPS urges caution when sending checks in blue mailboxes amid check-washing incidents National News USPS urges caution when sending checks in blue mailboxes amid check-washing incidents admin July 24, 2026 0 U.S. Postal Service officials are urging customers to take precautions when mailing checks in blue collection boxes,... Read More Read more about USPS urges caution when sending checks in blue mailboxes amid check-washing incidents
