Bugs in Mailbox: 10 EASY Ways to Keep Them Out

You walk up to your mailbox to retrieve your mail, only to find it crawling with unwelcome guests.

Whether it’s ants, spiders, or other pesky bugs, dealing with mailbox infestations can be a frustrating experience, especially during the warmer months. Not only can bugs cause damage to your mailbox, but they can also pose a potential health risk.

In this article, we’ll explore the different types of bugs that can infest your mailbox, why they’re attracted to it, and most importantly, how to get rid of them and prevent them from returning.

So, if you’re tired of sharing your mailbox with unwanted visitors, keep reading to learn more about dealing with bugs in mailbox.

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Types of Bugs in Mailbox

Mailboxes can be a haven for various types of bugs, especially during the warm summer months. These tiny critters can cause disruptions in your daily routine and make retrieving your mail an unpleasant experience.

Let’s explore the different types of bugs commonly found in mailboxes.

Types of Bugs in Mailbox


  • Ants are attracted to mailboxes because they can find shelter and food there.
  • They can also cause damage to your mailbox over time by digging through the wood or metal.
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  • They can be a nuisance and may cause damage to the paper and envelopes in your mailbox.


  • These eight-legged arachnids are skilled at spinning webs in dark corners and crevices.
  • Some spider species, such as cobweb spiders or cellar spiders, may take up residence in your mailbox, waiting for prey to become entangled in their silk.
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Clover Mites

  • Clover mites are tiny red bugs that are often found in large numbers on the sides of buildings and mailboxes.
  • Clover mites are harmless to humans and primarily feed on plant material.
    • They may accidentally find their way into mailboxes, attracted to the moisture and shelter they provide.
  • These tiny, reddish-brown creatures are often mistaken for insects, but they are actually arachnids.
Types of Bugs in Mailbox


  • Termites can cause significant damage to your mailbox over time, which may require costly repairs.
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  • These slow-moving mollusks may seek refuge in your mailbox, especially if it offers a dark and damp environment.
  • If your mailbox is located in a shady, moist spot, you may find snails inside.
  • They can be a nuisance and may leave a slimy trail behind.


  • Millipedes thrive in damp environments and may be attracted to the moisture within your mailbox.
  • They can be a nuisance and may cause damage to the paper and envelopes in your mailbox.
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  • Certain beetle species, such as carpet beetles, may occasionally seek shelter in mailboxes.
  • Beetles can cause damage over time. They can also be a nuisance and may leave droppings behind.
Types of Bugs in Mailbox

Bees and Wasps

  • These stinging insects may be attracted to mailboxes due to the availability of suitable nesting sites.
  • Bees and wasps can construct hives or nests within mailboxes, which can pose a potential hazard if disturbed.


  • They can enter through open flaps or gaps in the mailbox structure.
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  • Although relatively rare, snakes can occasionally find their way into mailboxes.
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  • While not as common, cockroaches can infest mailboxes, especially if there are nearby food sources or unsanitary conditions
Identifying the type of bug in your mailbox is the first step to getting rid of it. 

Once you know what you're dealing with, you can take the necessary steps to prevent and eliminate the infestation.
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How to Get Rid of Bugs in Your Mailbox?

If you’ve discovered any of the bugs we discussed earlier making themselves at home in your mailbox, it’s time to take action. While it may seem like a daunting task, there are several ways to get rid of bugs in your mailbox.

Here are practical and effective methods to get rid of bugs in the mailbox.

Clear out your mailbox before taking any further steps. Remove all of your mail and papers from inside. 

Once you have cleared out the mailbox, you can proceed with the necessary steps to get rid of them.  
Bugs in mailbox | How to Get Rid of Bugs in Mailbox?

Use a Hand Vacuum

  • Be thorough in your cleaning, reaching into corners and crevices where bugs may hide.

Use Essential Oils

  • Dilute a few drops of essential oil, such as peppermint, tea tree, or lavender, in water, and spray the solution around the mailbox area.
  • The strong scent will act as a deterrent for bugs.

Use Sticky Traps

  • Place adhesive traps near the mailbox, preferably along the entry points or areas where bugs are most active.
  • The sticky surface will capture the bugs, preventing them from entering or leaving the mailbox.

Diatomaceous Earth & Boric Acid

  • Sprinkle diatomaceous earth around the mailbox and mailbox post.
  • This powdery substance dehydrates bugs upon contact. Similarly, apply boric acid powder around the mailbox to deter and eliminate bugs.

Dish Soap & White Vinegar Solution

  • Create a mixture of dish soap and white vinegar in a spray bottle.
  • Spray the solution directly on bugs or areas where they are present in the mailbox.
  • The soapy water will suffocate and kill the bugs, making it easier to remove them.
If you encounter a snake in your mailbox, it's best to avoid approaching it and contact a professional immediately.
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How to Keep Bugs Out of Mailbox

Now that you’ve eliminated the bugs from your mailbox, it’s time to focus on preventing their return. By implementing proactive measures, you can create a bug-free environment and maintain the integrity of your mailbox.

Here’s how to safeguard your mailbox from future infestations.

Bugs in mailbox | How to Keep Bugs Out of Mailbox

Use a Mailbox Cover

  • This physical barrier can prevent bugs from entering the mailbox and finding shelter.

Apply a Natural Repellent

  • As explained above Essential oils like peppermint, citronella, or eucalyptus can act as effective bug deterrents.
  • Dilute a few drops of the chosen oil in water, then spray the solution around the mailbox to create a scent barrier that bugs will avoid.

Place a Dryer Sheet

  • Surprisingly, dryer sheets can serve as a simple yet effective bug repellent.
  • Place a dryer sheet inside your mailbox or attach it to the inside of the mailbox door.
  • The strong scent can help repel bugs from entering.

Use Mothballs

  • Place a few mothballs strategically inside the mailbox, ensuring they are securely contained within a small mesh bag to prevent contact with mail items.
Bugs in mailbox | How to Keep Bugs Out of Mailbox

Use Citrus & Coffee Grounds

  • Bugs are often repelled by citrus scents.
  • Cut up citrus peels, such as lemon or orange, and scatter them around the mailbox area.
  • In addition, coffee grounds can be sprinkled around the base of your mailbox and surrounding plants.

Use Crushed Eggshells

  • Crushed eggshells can act as a deterrent for crawling insects.
  • Snails find crushed eggshells to be like broken glass and will avoid crawling over them.
  • You can sprinkle crushed eggshells inside your mailbox or scatter them around the base of your mailbox and surrounding plants to create a barrier that snails won’t cross.
  • This natural deterrent can help keep snails away from your mailbox.

Keep Your Yard Tidy

  • Maintaining a tidy yard can help minimize bug activity around your mailbox.
  • Trim back vegetation that may come into contact with the mailbox, as bugs can use it as a pathway.
  • Regularly remove fallen leaves, debris, and standing water near the mailbox, as they can attract insects.

Replace Damaged Parts

  • Inspect your mailbox regularly for any damaged parts, such as cracks, gaps, or holes.
  • Repair or replace these components promptly, as they can serve as entry points for bugs.
  • Ensure a tight and secure seal to prevent bugs from finding their way inside.
Bonus Tips - 

You may want to consider going paperless whenever possible. 

By opting for electronic statements and digital communication, you can minimize the presence of paper in your mailbox, reducing the attraction for certain bugs. 

Replacing your wooden mailbox with a metal mailbox can also help deter insects. 

Unlike wood, metal is less appealing to bugs and can provide a more robust barrier against their entry. 

These small changes can help to maintaining a bug-free and efficient mailbox system.

Final Thoughts

It’s no surprise that bugs find their way into your mailbox, making it their cozy home. From ants and spiders to beetles and other common critters, these unwelcome guests can be a source of annoyance and frustration.

However, with a little know-how and proactive steps, you can take charge and keep bugs out of your mailbox.

By implementing preventive measures like using natural repellents, installing mailbox covers, and maintaining cleanliness, you can create an environment that discourages bugs from making themselves at home.

Remember to stay vigilant and address any issues promptly. If you encounter more serious challenges like snakes or situations beyond your control, seeking professional help is the safest route.

By adopting these simple yet effective strategies, you can keep bugs out of your mailbox.


What are the tiny red bugs on my brick mailbox?

The tiny red bugs on your brick mailbox are likely clover mites. While they don’t bite or sting, their large numbers can be a nuisance.

Why is my mailbox full of earwigs?

Earwigs are often attracted to dark, damp places, and mailboxes provide such conditions. They can be a nuisance and may cause damage to the paper and envelopes in your mailbox.

What is eating my mailbox post?

If you notice your mailbox post being damaged, termites could be the culprit. Termites are attracted to wood and can cause significant damage over time. Contact a pest control professional to assess and address the termite infestation.

Can bugs cause damage to my mailbox?

Yes, certain bugs like termites, ants, and beetles can cause damage to your mailbox. They may dig through wood or metal, weaken the structure, and compromise its integrity. Taking preventive measures and promptly addressing any bug infestations can help protect your mailbox.

How to prevent spiders and bugs from getting in the mailbox?

To prevent spiders and bugs from entering your mailbox, use a mailbox cover, apply natural repellents, and keep your yard tidy. Regularly clean your mailbox and seal any gaps or openings to create a barrier against their entry.

How can I safely remove a spider web from my mailbox?

To safely remove a spider web from your mailbox, wear gloves and use a brush to gently sweep it away. Avoid touching the spider directly and discard the web carefully.

How do I get rid of a snail in my mailbox?

To get rid of a snail in your mailbox, carefully remove it and relocate it to a suitable outdoor area away from your mailbox. You can also deter snails from your mailbox by sprinkling crushed eggshells and coffee grounds around the base of the mailbox. The sharp edges of the crushed eggshells and the scent of coffee grounds act as natural repellents.

How often should I clean my mailbox?

It is recommended to clean your mailbox periodically, at least once every few months, or as needed. Regular cleaning helps remove debris, spider webs, and any potential attractants for bugs.

Resources – (for further reading)

The University of Maine – Household Pests and Critters

I'm Ernest M Noah, the founder of BugsTips.com. I have years of experience as an exterminator in Texas and Idaho, and I'm passionate about educating people on how to deal with pest problems effectively and safely.