Long Pond Road residents are among those in Barnstable not receiving important mail deliveries including medications.
The Blizzard of 2015 means deliveries will not take place on Tuesday, but likely will resume on Wednesday.
A U.S. Postal Service Inspector General report has found the greater Boston area has experienced significant delays in mail delivery.
The U.S. Postal Service has suspended mail delivery and will keep post offices closed in all six New England states because of the blizzard that has dumped more than 2 feet of snow throughout the region.