Large Locking Mailboxes

If security is your top priority, the Oasis Classic is ready to deliver. This metal mailbox is built with 16 and 14-gauge galvanized steel, making it one tough post mount in our USPS approved locking mailboxes collection. It’s a fortress for your front porch, with an extra large mailbox compartment ready for letters, packages, and everything in between. Internal weather stripping blocks moisture from entering, while the one-piece construction keeps things tight and tamper-resistant. The lock is pick and pry-resistant, so your mail stays right where it belongs. Powder-coated for extra durability, this modern locking mailbox mounts easily to Architectural Mailboxes posts with compatibility code H. If you're on the hunt for residential mailboxes, stylish mailboxes for outside, or a serious outdoor mailbox that brings the muscle, this one’s a smart pick. The perfect curbside mailbox when your deliveries deserve VIP protection.

It is perfect for what we needed. Works and looks great.. Anonymous. Sun Jul 19 2026

The Mailsafe by Architectural Mailboxes is here to protect your packages and level up your curb appeal. This sleek, secure plastic mailbox features a modern black finish that looks great outside any home. It's one of our top locking mailboxes USPS approved, built for style and security. Here’s the smart part. Mail carriers don’t need a key. They drop your mail through the top slot, and it slides safely into a locked compartment below. Only you can access it, keeping deliveries safe from weather and wandering hands. Crafted from UV-protected, rustproof polypropylene, this outdoor mailbox is made for year-round durability. With a generous large mailbox capacity, it’s perfect for busy households, online shopping, and everyday peace of mind. Fully assembled and easy to install, the Mailsafe is a top pick for residential mailboxes, mailboxes for outside, and anyone looking for a post mounted mailbox that puts security first without sacrificing style.

Very well made & high quality mailbox. Our community has a shared mailbox area of approx ten homes and everyone agreed these were the best mailbox for our community. Highly recommend.. Jennifer. Bellevue, WA. Sat Sep 19 2026

This is an innovative new product from Mail Boss: designed to ensure safe mail retrieval for its users. Featuring a locking access door for mail retrieval, provides safety, even on high-traffic or high-speed roads. This is built to last with timeless appeal, featuring our high-security bi-cam locking access door and a heavy-duty construction that Mail Boss is known for.

Great piece and easy to install. Look great and I’ve had no issues with it over the last year.. Joaquin. San Antonio, TX. Sun May 31 2026

Surface or flush mounted to a masonry wall or fence, mail is delivered through the front flap and retrieved from the front lockable secure access door. Mailbox is made from solid aluminum, is totally waterproof and has a quality black enamel finish. It features a large capacity secure mail storage area with lockable front retrieval door which is supplied with 2 keys.

In rainy weather and wet ground, this package delivery box can safely receive your package or mail without loss. You don't have to worry about the time to accept the package or the loss of the package. It will be your effective postman assistant.

A good mailbox but the lock does not work well. It is extremely easy to accidently change the code and the product did not come with the keys. I am now searching for a replacement lock and feel I wasted my money.. Alexander Aaron. Mount Pearl, NL. Thu Jan 01 2026

Mounted through a wall, the mail is delivered through a conventional black color letter plate. The mail then passes through a chute, drops into a collection box, and is retrieved from the rear lockable secure access door. The chute is held in place with masonry and silicone adhesive. Mailbox is made from solid aluminum, is totally waterproof, and has a quality black enamel finish. It features a large capacity secure mail storage area with a lockable rear retrieval door which is supplied with 2 keys.

Mounted through a wall, mail is delivered through a conventional black color letter plate. The mail then passes through a chute, drops into a collection box, and is retrieved from the rear lockable secure access door. The chute is held in place with masonry and silicone adhesive. The mailbox is made from solid aluminum, is waterproof, and has a quality black enamel finish. It features a large capacity secure mail storage area with a lockable rear retrieval door which is supplied with 2 keys.

this will work great in the church office to help with incoming funds to keep them secure!. Annette. Fort Wayne, IN. Wed Mar 18 2020

Meet Walter. He's our modern post-mounted mailbox, with a matte black powder-coated finish for a clean look. His style is refined with the perfect touch of uniqueness. He'll easily be the best-looking curbside mailbox on the street. (Post and hardware included)

The Mail Manager locking security mailbox by Mail Boss is USPS Approved for residential use and protects against mail theft and vandalism. Its innovative design accepts mail bundles and small packages while deterring fishing. Made of heavy-gauge galvanized steel, the Mail Manager includes a patented anti-pry latch locking mechanism to impede leveraged entry, and a high-security wafer lock with 3 laser cut sidewinder keys. Never worry about your mail being stolen again, with the Mail Manager secure lockable mailbox. Dimensions: 21" D x 11. 25" H x 10. 75" W

This mailbox is just what I was looking for! It looks great with our 1959 ranch house. It is spacious and held over a week's worth of mail while we were out of town. Love the locking feature. Perfect size for a residential neighborhood.. Chris. Lincoln, NE. Thu Aug 27 2026

Meet the Oasis 360 post mounted mailbox, a true front-yard upgrade with brains, brawn, and curb appeal. This metal mailbox combines sleek design with serious security, making it a standout in our USPS approved locking mailboxes collection. The double door mailbox setup lets you grab your mail from the back, so you can skip the street and the traffic. A magnetic latch keeps the door sealed tight, and the built-in WeatherTite™ strip keeps your mail dry, even when the forecast goes sideways. With its spacious large mailbox compartment, there’s room for magazines, padded mailers, and all those impulse buys. You’ll even get four keys for family mail check duty. No need to distribute keys to your mail carrier, they deliver through the top door, securely depositing your mail in the locked compartment below. Whether you’re upgrading residential mailboxes, refreshing your curbside mailbox, or need an outdoor mailbox that can handle your mail with style, the Oasis 360 has you covered. It’s tough, trustworthy, and totally made for mailboxes for outside that do more than just sit pretty.

Great mailbox. Big enough for small packages and water tight. Jennifer. Tequesta, FL. Fri Oct 09 2026

This isn’t just a mailbox, it’s your home’s first line of defense. This modern mailbox makes security simple with a top door for easy delivery that drops mail into a locked compartment below. No key needed for carriers - just drop and go. Built from powder-coated, heavy-duty galvanized steel, this metal mailbox stands strong through rain, rust, and rough weather. A reinforced lock, anti-fishing baffle, and pry-resistant door work together to keep your mail safe. Finished with a cast aluminum handle, bold powder-coated flag, and roomy interior, this large mailbox is made for real life. It’s part of our trusted USPS approved locking mailboxes lineup and perfect for residential mailboxes, mailboxes for outside, or anyone who wants an outdoor mailbox that works hard and looks great doing it.

It was exactly what I wanted, and the price was just right. Genie. Raleigh, NC. Wed Jun 24 2026

The Mail Manager locking security mailbox by Mail Boss is USPS Approved for residential use and protects against mail theft and vandalism. Its innovative design accepts mail bundles and small packages while deterring fishing. Made of heavy-gauge galvanized steel, the Mail Manager includes a patented anti-pry latch locking mechanism to impede leveraged entry, and a high-security wafer lock with 3 laser cut sidewinder keys. Never worry about your mail being stolen again, with the Mail Manager secure lockable mailbox. Dimensions: 21" D x 11. 25" H x 10. 75" W

Love not worrying about my mail. Never had a problem with any rain getting in. Holds lots of mail.. Brenda. Lexington, NC. Wed Jun 10 2026

The Reliant locking mailbox is curbside confidence in a clean, modern shell. Made from heavy-duty galvanized steel, this metal mailbox is tough and stylish without trying too hard. Mail drops through a hidden slot into a locked compartment easy for your carrier, secure for you. It comes with two keys, a magnetic latch to keep the door closed tight, and smooth steel piano hinges built to last. This large mailbox handles letters, magazines, and small padded mailers with room to spare. It even includes a mail clip for outgoing items. Fully assembled with pre-drilled holes make installation quick and easy. Whether you're shopping for mailboxes for outside, a trusted curbside mailbox, or a USPS approved locking mailbox, the Reliant has your back and your mail.

Perfect for the amount of mail we have.. Arlene. O Fallon, IL. Sun Sep 06 2026

Crafted from thick solid cast aluminum measuring 16.53"L x 16.53"W x 46.06"H, this vertical standing mailbox eliminates the flimsy lightweight flaws of comparable models to stand firm against rain, snow and harsh seasonal wind year-round; the white version features a UV-resistant coating to prevent yellowing under strong sunlight, while the classic black finish delivers timeless low-maintenance curb appeal. Equipped with a secure lock and two matching keys to protect private letters, newspapers and catalogs from theft, this receiving-only postal box comes with an integrated carved pillar and wide reinforced base for fast ground installation via included expansion bolts. Decorated with intricate embossed reliefs, floral carved columns and a textured tiled roof, it seamlessly blends heavy-duty all-weather functionality with eye-catching mid-century vintage styling to elevate any driveway, lawn or villa yard landscape.

It is VERY SHORT-- not as tall as one would expect a mailbox to be. You have to either lock the door mail is delivered in each time you get your mail or leave it open-- which means a door facing the sidewalk is open and can blow open in the wind. Not what we wanted or were expecting. Susan. Alexandria, VA. Sat Sep 26 2026

Our burnt brown wooden drop box is a versatile solution for offices, businesses, churches, or weddings. It can be wall mounted or placed on a tabletop, serving as a suggestion box, ballot box, donation container, or raffle box. The lockable side panel door provides security, and the small bottom compartment is perfect for storing paper, utensils, envelopes, or other accessories. The erasable chalkboard front allows for labeling, messages, instructions, or artwork. It includes 2 keys for added convenience. Easily secure it on flat walls using the two keyhole brackets or place it freestanding on countertops or tables. Additionally, it comes with 4 bottom foot pads for stability.

This suggestion box is the perfect size. We plan to use it in my church for different events. The front of it is literally a chalkboard and it comes with chalk. It comes with a key that you can open the interior of the box to retrieve whatever cards are put in it. The slot that you use to place ballots or cards is on the small side.. Glenda. Corpus Christi, TX. Thu Oct 16 2025

In rainy weather and wet ground, this wall-mounted package delivery box can safely receive your package or mail without loss. You don't have to worry about the time to accept the package or the loss of the package. It will be your effective postman assistant. When it is hung on the wall, it can bear a maximum of 66.14 lbs and can withstand a large number of relatively heavy small and medium-sized packages.

Anonymous. Spring, TX. Mon May 05 2025

Mounted through a masonry wall or fence, the mail is delivered through the front flap and retrieved from the rear lockable secure access door. The mailbox is made from solid aluminum, is totally waterproof, and has a quality bronze enamel finish. It features a large capacity secure mail storage area with a lockable rear retrieval door which is supplied with 2 keys.

Very nice. It looked good coming out of the box. Received very quickly, thank you.. Patricia. West Covina, CA. Tue Apr 20 2021