According to postal workers in the town of Farsley near Leeds they have been repeatedly attacked by a 19-year-old cat.
The postal workers said the cat jumps through the cat door and attacks them as they get near the home.
reports Royal Mail suspended deliveries because the attacks by the cat have inflicted some “nasty injuries” and has chased them down the garden path.
Tracy Brayshaw, the cat's owner now is picking her mail up at the post office said the ban is "a bit silly."
Brayshaw said, "We're talking about a 19-year-old geriatric cat here who likes lazing out in the sun."
BBC News which has a video
of the cat and owner reports Brayshaw said, "There have been three incidents where Tiger's jumped through the cat flap and is said to have scratched a postie, so they've decided to suspend our post. He's never done anything like this before."
Amy Brayshaw the 17-year-old daughter of Mrs. Brayshaw, said Tiger likes to climb trees and sleep.
She said, "Apparently he attacked one postman on the leg and on the arm and chased him down the garden path. He is very territorial but he's just an average cat really. We are all saying it's health and safety gone mad."
Royal Mail issued a statement: "We are sorry for the inconvenience to Mrs Brayshaw and, as we want to resume delivery of mail to her address as quickly as possible, we're trying to agree a way to do this and avoid our employees suffering."