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Dog Barking at Delivery Drivers and Mail Carriers: Why and What to Do

Updated October 31, 2026 · General information, not veterinary advice

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Why it happens

• Protective instinct. The AKC says dogs tend to be protective and some breeds are naturally more territorial than others.
• It seems to work. The AKC says the pattern can teach your dog that when they bark, the intruder leaves. Vetstreet says some dogs think their barking drives the carrier away before they can get used to them.
• Fear or frustration. Vetstreet says causes include fear or frustration about an intruder on the property. The uniform may frighten some dogs, and others may be frustrated that they cannot greet the carrier.
• Something else. The AKC says barking can also come from boredom, excess energy, or reactions to squirrels, strangers or other dogs.

Step by step

1. Stop the rehearsals. This one is our suggestion, based on the point above. Use a gate, a closed door or another room at delivery times. Vetstreet says to use a leash, fence or gate as a barrier so your dog stays safe during training.
2. Teach self-control. The AKC says to practice basic commands such as sit and wait.
3. Teach "sit and watch." The AKC says to reward your dog for sitting quietly while observing. Build up gradually, with a friend playing the intruder and moving closer to the door over time.
4. Play the "look" game. Vetstreet says to say "look" to draw your dog's attention to what it is barking at, then reward it for staying quiet.
5. Get used to the uniform. Vetstreet says to have a helper in a costume or hat visit the door. Start with the "look" game and having the dog sit on a mat. Gradually open the door further, mimic a package delivery, then add the costume. If your dog gets upset, go back to an earlier step.
6. Give your dog a job. The AKC says some owners train a dog to grab a toy and go to another room when someone approaches. Vetstreet suggests teaching a dog to go to a mat at the doorbell.
7. Teach quiet on cue. Vetstreet says to teach "speak" first, then "quiet," and reward your dog for quieting on cue.

Make it easier

• The AKC suggests enough exercise to reduce boredom and restlessness, a puzzle or stuffed toy such as a food-filled KONG, and a TV or other familiar sounds that may reduce reactions to unfamiliar noises.
• The AKC suggests a camera or pet surveillance app to work out what triggers the barking.
• Reward quiet. Do not yell, and do not punish (AKC and Vetstreet).

When to get help

If your dog also whines or paces when you are about to leave, the AKC says it may have separation anxiety and a professional trainer or veterinarian can help. See barking when left alone. For doorbells and visitors, see barking at the door. If your dog's behavior at the door feels aggressive rather than noisy, ask a trainer or your vet for help in person. This guide is general information, not medical advice.

Common questions

Why does my dog bark at delivery drivers?

The AKC says dogs tend to be protective and some breeds are naturally more territorial. It also says the routine can teach a dog that when it barks, the intruder leaves. Vetstreet adds that the uniform may frighten some dogs, and others may be frustrated that they cannot greet the person.

Should I yell at my dog to be quiet?

No. The AKC says yelling or giving attention during barking may be read by your dog as a reward. Vetstreet says your dog may think you are joining in, and that punishing barking can increase anxiety and may lead to aggression toward people at the door.

Can a baby gate or leash help?

Vetstreet says to use a leash, fence or gate as a barrier so your dog stays safe during training. Both pages stress that the barking should not keep getting rehearsed.

What if my dog only barks when I am about to leave?

The AKC says whining or pacing when you prepare to leave may point to separation anxiety, and that a professional trainer or veterinarian can help. See our guide on barking when left alone.

Is there a quick way to teach quiet?

Vetstreet describes teaching a dog to speak first, then quiet, and rewarding it for going quiet on cue. The AKC suggests rewarding quiet behavior. Neither page gives a timeline.

Related guides

• Barking at the door
• Barking when left alone
• Stop barking fast: what works