Royal Mail have refused to deliver post to an address in Stockton because of a "hazardous" puddle.
A leak in Dan Lambton's garden means a small area behind his front gate is constantly wet.
Although Dan, 24, found the small puddle annoying he was surprised when Royal Mail refused to deliver to him any more, claiming it was dangerous.
He said: "It's just a little puddle but the post office have branded it a 'slip hazard'. It's not difficult to simply step over it, we're only talking about an area less than a yard square. But because of that one puddle I have now not received any mail in four months."
Dan is unable to collect post from his nearest sorting office because they require a recent utility bill as ID; but because he hasn't received post in so long he does not have one.
The leak bubbles up from an underground stream and trickles from his garden onto the path near his front door.
Dan, a dispensing chemist with Boots, said: "I've tried everything to get it fixed but nothing works. The water authority said it's coming from an underground stream and we have a high water table in the street so it's virtually impossible to stop it."
A Royal Mail spokeswoman said: "We suspended the delivery of mail following an unexplained leak at the front door of the customer’s property which included raw sewage. The safety of our staff is of paramount importance. The suspension of mail is always a last resort."
Watch Julia Barthram's report on the age old problem of dogs and postmen. Everybody knows they don't always get on and now dog owners are being urged to take better control of their pets.
120 postmen were attacked by dogs in the North East last year.
The number of attacks goes up dramatically during the summer months and especially in the nice weather. That's when pet owners are most likely to leave doors open and let their animals out into the garden.
Since April 2011 there have been over 5500 attacks on Royal Mail staff across the UK as a whole, some leading to a life changing injury. The attacks also lead to more than 4000 days off work.
Royal Mail have confirmed that a postal scam is taking place across the country that could cost people hundreds of pounds.
The Trading Standards Office are warning people about the following scam:
A card is posted through your door from a company called PDS (Parcel Delivery Service) suggesting that they were unable to deliver a parcel and that you need to contact them on 0906 6611911 (a Premium rate number).
DO NOT call this number, as this is a mail scam originating from Belize .
If you call the number and you start to hear a recorded message you will already have been billed £315 for the phone call.
If you do receive a card with these details, then please contact Royal Mail Fraud on 020 7239 6655.
Residents of Barforth,between Darlington and Barnard Castle, are having to drive 14 miles to collect their post, after Royal Mail suspended its deliveries there. It's concerned the main bridge into the village could collapse.
Local people have to drive to their nearest post office - a 14 mile round trip - to collect their letters.