What holidays does the US Post Office send mail?

Question

What holidays does the US Post Office send mail?

Answer 1

Need a little more information. Do you want to know on what holidays do we pick up mail from our collection boxes or what holidays  do we deliver mail? We pick up the mail from most collection boxes on most holidays, but it might not get sent out to our sorting plants. And there are no holidays on which we deliver mail except for express mail. Hope this helps you.