Add Yahoo as a preferred source to see more of our stories on Google. When most people drop mail off at a mailbox or at a post office, they assume it is postmarked that same day. But according to a ...

When most people drop mail off at a mailbox or at a post office, they assume it is postmarked that same day. But according to a new rule from the United States Postal Service, that’s not the case ...

SAN FRANCISCO (KGO) -- It's the busiest holiday season yet at the U.S. Postal Service's processing and distribution center in San Francisco. "We're doing almost 275,000 pieces every day," said ...