Royal Mail has issued a clear warning to households across the UK: display a simple four-word sign if you own a dog, or risk losing your deliveries altogether. The message, now being widely shared, is straightforward — “I have a dog.” But behind those four words is a growing safety concern that postal workers face every single week.
The latest figures reveal that dog attacks on Royal Mail staff have risen again, with 2,197 incidents recorded in the 2024/25 period — a 2% increase on the previous year. That equates to roughly 42 attacks every week, many happening right at the front door or through the letterbox. Some of these incidents have resulted in serious or even life-changing injuries.
Royal Mail says the situation has reached a point where action from households is no longer optional. In some cases, if a dog poses a threat or has already attacked, deliveries to that address can be suspended. The company has made it clear that staff safety comes first, even if it means customers temporarily lose their postal service.
The four-word sign is part of a wider push to prevent these incidents before they happen. A visible notice on the door or window alerts the postie that a dog is present, giving them time to wait while the owner secures the animal. Postal workers have said they are more than willing to pause deliveries for a few moments if it means avoiding a dangerous situation.
Royal Mail has even created a printable postcard that reads: “I HAVE A DOG. Please wait whilst I secure my dog before opening the door.” The idea is simple — reduce surprise encounters and give both the homeowner and the delivery worker time to act safely.
According to the company, many attacks happen in predictable ways. Dogs may rush out when a door is opened, escape from gardens when a postie approaches, or bite through the letterbox when fingers are posted through. These are not rare or isolated events. They are patterns that have repeated year after year.
The data also highlights specific high-risk areas across the UK. Sheffield’s S postcode area recorded the highest number of attacks, with 66 incidents — a sharp 61% increase compared to the previous year. Portsmouth’s PO postcode followed closely with 60 attacks, while the TN postcode area, covering parts of Kent, Sussex and Surrey, reported 56 incidents, marking a 33% rise.
Other areas on the list include Guildford (GU), Nottingham (NG), Chelmsford (CM), Brighton (BN), Belfast (BT), Newcastle (NE), Swindon (SN), Doncaster (DN) and Staffordshire (ST). Some of these locations have appeared repeatedly over the years, showing that the issue is persistent rather than temporary.
What makes the situation more concerning is that many of these incidents involve dogs that owners consider friendly. Royal Mail says even well-trained pets can react unpredictably when confronted with unfamiliar people, especially at the door or gate. A sudden movement, noise or perceived threat can trigger behaviour that owners might not expect.
That is why the organisation is asking households to take multiple precautions, not just rely on the sign. Dog owners are advised to keep pets in another room before opening the door, ensure gates are closed so dogs cannot reach the front of the property, and consider installing a wire cage behind the letterbox to prevent bites through the slot.
Another suggestion is to place a secure mailbox at the edge of the property, away from where the dog is kept. Even small steps, such as distracting a dog with a toy or food during delivery times, can reduce agitation and prevent sudden reactions.
The warning comes at a time when delivery volumes are expected to rise, particularly around seasonal peaks like Easter. More parcels mean more doorstep interactions, increasing the chances of incidents if precautions are not taken. Royal Mail says acting now could help avoid disruptions during busy periods.
In a message to customers, the company acknowledged the importance of receiving letters and parcels but stressed that safety cannot be compromised. When an attack occurs, Royal Mail says it must inform the police and suspend deliveries to the address to prevent further risk.
For many households, that consequence is the real wake-up call. Missing a delivery is inconvenient, but having postal services halted altogether can create ongoing issues, especially for those relying on regular shipments, important documents or medical supplies.
More details on the guidance and safety campaign can be found directly on Royal Mail’s official page. You can read the full dog awareness advice here.
At its core, the message is simple. A four-word sign may seem small, but it could prevent injuries, protect postal workers and ensure deliveries continue without disruption. For dog owners, it is a quick step that carries far more weight than it appears.
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