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Postal service adds Sunday delivery through holiday season
DENVER -- If you're one of the millions of people expecting packages or letters from the post office this holiday season, be sure to check the mail on Sundays too. Postal workers will deliver packages seven days a week through the holiday season. If you want your package delivered by Christmas, you have until Dec. 15 for standard post, Dec. 19 for cards and letters and Dec. 21 for priority mail.