---
product_id: 145473423
title: "Expandable Dry Mailbox Insert Tray – Universal Waterproof Mailbox Liner & Rain Guard for 6.5–8″ Wide Mailboxes, Expands 12–21″ – Protects Mail from Rain, Snow, Sprinklers – No Tools Needed"
brand: "mdlmi"
price: "€ 78.17"
currency: EUR
in_stock: true
reviews_count: 8
category: "Mdlmi"
url: https://www.desertcart.at/products/145473423-expandable-dry-mailbox-insert-tray-universal-waterproof-mailbox-liner-rain
store_origin: AT
region: Austria
---

# Waterproof & weatherproof protection Expandable 12–21" fits most mailboxes No-tool quick install Expandable Dry Mailbox Insert Tray – Universal Waterproof Mailbox Liner & Rain Guard for 6.5–8″ Wide Mailboxes, Expands 12–21″ – Protects Mail from Rain, Snow, Sprinklers – No Tools Needed

**Brand:** mdlmi
**Price:** € 78.17
**Availability:** ✅ In Stock

## Summary

> 📬 Keep your mail dry, your style sharp, and your mailbox future-proof!

## Quick Answers

- **What is this?** Expandable Dry Mailbox Insert Tray – Universal Waterproof Mailbox Liner & Rain Guard for 6.5–8″ Wide Mailboxes, Expands 12–21″ – Protects Mail from Rain, Snow, Sprinklers – No Tools Needed by mdlmi
- **How much does it cost?** € 78.17 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/145473423-expandable-dry-mailbox-insert-tray-universal-waterproof-mailbox-liner-rain)

## Best For

- mdlmi enthusiasts

## Why This Product

- Trusted mdlmi brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Snap-In Installation:** Tool-free setup means you can upgrade your mailbox protection in seconds—no handyman required, just snap and secure.
- • **Durable Weather Warrior:** Made from UV-resistant polypropylene, built to withstand rain, snow, and extreme temps year-round without warping or cracking.
- • **Eco-Friendly & Lightweight:** Under 9 oz and fully recyclable, this insert is a smart, sustainable choice for the eco-conscious professional.
- • **Universal Fit, Zero Hassle:** Expands effortlessly from 12 to 21 inches to fit standard 6.5–8" wide mailboxes—no guesswork, just perfect fit.
- • **Rain, Snow & Sprinkler Shield:** Elevates your mail above moisture with patented mesh design that ensures airflow and drainage—say goodbye to soggy envelopes.

## Overview

The Expandable Dry Mailbox Insert Tray is a universal, waterproof liner designed to fit 6.5–8" wide mailboxes by expanding from 12 to 21 inches. Featuring a patented mesh design, it elevates mail to prevent damage from rain, snow, and sprinklers. Made from durable, UV-resistant polypropylene, it installs quickly without tools and offers a lightweight, eco-friendly solution to keep your mail dry and protected year-round.

## Description

desertcart.com: Expandable Dry Mailbox Insert Tray – Universal Waterproof Mailbox Liner & Rain Guard for 6.5–8″ Wide Mailboxes, Expands 12–21″ – Protects Mail from Rain, Snow, Sprinklers – No Tools Needed : Tools & Home Improvement

Review: Keeps your mail dry - Perfect for our need. The mailbox is cemented in and the top mortar had cracked thus got a leak over time. When it rains the moisture collects along the bottom thus pooling and wetting the mail. This has made a huge difference and keeps the mail dry.
Review: Does its job keeping mail off the damp bottom of the mailbox - It works and is of a decent design. I don't like the sharp edges in the front so suggest that a redesign have a ramp to cover those edges. I also put two screw through it to anchor it to the mailbox and to help it keep it's shape. I like that it is easily expandable to fit different sizes of mailboxes.

## Features

- Fits Most Mailboxes: Our universal mailbox insert expands 12–21" to fit standard post mount and curbside mailboxes with 6.5–8″ width—an essential mailbox accessory upgrade.
- Keeps Mail Dry: This dry mailbox insert lifts mail above the base to prevent damage from rain, melting snow, or sprinkler overspray—no more soggy envelopes or wet packages.
- Patented Mesh Design: Innovative mesh mailbox tray ensures airflow and drainage while keeping mail elevated—acts as a perfect mailbox water guard or drip tray solution.
- Weatherproof Protection: Durable polypropylene liner resists moisture, UV rays, and extreme temperatures—your ideal mailbox solution for wet weather all year round.
- Quick No‑Tool Install: Easily compress and insert—no tools or hardware needed. This adjustable mailbox insert snaps into place securely and stays put.
- Lightweight & Eco‑Friendly: Weighing under 9 oz, this recyclable mailbox tray is both lightweight and sturdy—an environmentally conscious choice for your outdoor mailbox.
- Stop Wet Mail Issues: Say goodbye to damp mail with our mailbox rain protector—perfect for homes that deal with frequent rain, sprinklers, or snow buildup.
- Trusted desertcart’s Choice: With hundreds of satisfied reviews, this mailbox liner insert is the go-to product to stop wet mail. Works great as a USPS mailbox insert tray too!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07J1XMY8Z |
| Access Location | Top |
| Best Sellers Rank | #191,558 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #139 in Post-Mount Mailboxes |
| Brand | MDLMI |
| Brand Name | MDLMI |
| Color | Black |
| Customer Reviews | 4.1 out of 5 stars 474 Reviews |
| Included Security Features | lock |
| Item Dimensions D x W x H | 12"D x 8"W x 1"H |
| Item Type Name | Post Mounted Mailbox |
| Item Weight | 0.27 kg |
| Manufacturer | MDLMI, LLC |
| Manufacturer Part Number | MDLMI-2V |
| Material | Plastic |
| Material Type | Plastic |
| Model Number | MDLMI-2V |
| Mounting Type | Post Mount |
| Number of Items | 1 |
| Number of Packs | 1 |
| Product Dimensions | 12"D x 8"W x 1"H |
| Security Features | lock |
| Style Name | Modern |
| UPC | 866488000211 |

## Product Details

- **Brand:** MDLMI
- **Color:** Black
- **Included Security Features:** lock
- **Material:** Plastic
- **Mounting Type:** Post Mount

## Images

![Expandable Dry Mailbox Insert Tray – Universal Waterproof Mailbox Liner & Rain Guard for 6.5–8″ Wide Mailboxes, Expands 12–21″ – Protects Mail from Rain, Snow, Sprinklers – No Tools Needed - Image 1](https://m.media-amazon.com/images/I/71a-GdDo-YL.jpg)
![Expandable Dry Mailbox Insert Tray – Universal Waterproof Mailbox Liner & Rain Guard for 6.5–8″ Wide Mailboxes, Expands 12–21″ – Protects Mail from Rain, Snow, Sprinklers – No Tools Needed - Image 2](https://m.media-amazon.com/images/I/813GUb2zhXL.jpg)
![Expandable Dry Mailbox Insert Tray – Universal Waterproof Mailbox Liner & Rain Guard for 6.5–8″ Wide Mailboxes, Expands 12–21″ – Protects Mail from Rain, Snow, Sprinklers – No Tools Needed - Image 3](https://m.media-amazon.com/images/I/81l3Y2qQDTL.jpg)
![Expandable Dry Mailbox Insert Tray – Universal Waterproof Mailbox Liner & Rain Guard for 6.5–8″ Wide Mailboxes, Expands 12–21″ – Protects Mail from Rain, Snow, Sprinklers – No Tools Needed - Image 4](https://m.media-amazon.com/images/I/81F713yJs4L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Keeps your mail dry
*by S***K on May 9, 2026*

Perfect for our need. The mailbox is cemented in and the top mortar had cracked thus got a leak over time. When it rains the moisture collects along the bottom thus pooling and wetting the mail. This has made a huge difference and keeps the mail dry.

### ⭐⭐⭐⭐ Does its job keeping mail off the damp bottom of the mailbox
*by L***A on January 24, 2020*

It works and is of a decent design. I don't like the sharp edges in the front so suggest that a redesign have a ramp to cover those edges. I also put two screw through it to anchor it to the mailbox and to help it keep it's shape. I like that it is easily expandable to fit different sizes of mailboxes.

### ⭐⭐⭐⭐⭐ Great for keeping mail dry
*by A***R on March 12, 2026*

I've had issues with my mail getting wet/soaked whenever there was even a little amount of rain. This solves the problem by keeping mail elevated from the bottom of the mailbox. Highly recommend.

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**Shop now:** [https://www.desertcart.at/products/145473423-expandable-dry-mailbox-insert-tray-universal-waterproof-mailbox-liner-rain](https://www.desertcart.at/products/145473423-expandable-dry-mailbox-insert-tray-universal-waterproof-mailbox-liner-rain)

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*Product available on Desertcart Austria*
*Store origin: AT*
*Last updated: 2026-08-28*