Best Lock Post-Mount Mailboxes of 2025

The Mail Boss 7506 Mail Manager Curbside Locking Security Mailbox is a full-service residential locking mailbox that prevents mail-identity theft. It is made of 14- and 16-gauge galvanized welded steel construction which defends against vandalism. The innovative baffle door accepts small parcels, packages, and a box of checks and also deters fishing. It includes a patented Anti-Pry latch lock mechanism to prevent leveraged entry with a screwdriver & high security anti-drill, anti-pick 12-disc wafer lock. The package comes with a concealed outgoing mail clip, 3 keys, and required installation hardware.

The USPS approved Architectural Mailboxes 6300B-10 Oasis 360 Locking Parcel Mailbox is an extra-large post-mount mailbox that measures 11.3 in. W x 11.5 in. H x 20 in. D, and accepts parcels ranging from 9.5 in. W x 12.6 in. L x 1.5 in. H to 9.5 in. W x 3.5 in. L x 2.5 in. H. Its dual door locking system and galvanized steel construction, which is fully powder coated inside and out, provide added corrosion resistance. Additionally, predrilled 4 in. x 10 in. mounting holes in the floor allow for easy installation.

The Architectural Mailboxes Oasis Classic Locking Post Mount Parcel Mailbox is Postmaster General approved and designed to allow delivery of mail bundles and small parcels, making it perfect for internet and catalog shoppers. The body is constructed of heavy 16 and 18 gauge galvanized steel that is fully powder coated for durability and long life. It also includes rubber seals on the doors to keep deliveries clean and dry, and is suitable for installation into a pilaster or column. The entire outer shroud is one piece to resist moisture and the elements, ensuring your mail is safe and secure.

The Architectural Mailboxes Reliant is designed to keep your mail secure and organized. Its concealed locking compartment protects your mail from theft, providing peace of mind with two keys for easy access. Made from heavy-duty galvanized steel, this mailbox ensures durability and long-lasting use. The 10-inch wide delivery slot allows for the safe receipt of various mail types, including magazines and small packages. Plus, with a large capacity, you can rest easy knowing several days' worth of mail can fit without overflowing.

Mail Boss 7106 Curbside Steel Post Mount Mailbox is a high-security mailbox with an extra-large capacity. Made of 12- and 14-gauge electro galvanized steel, it features a patented anti-pry latch locking mechanism and a 12-wafer disc lock to prevent leveraged entry. The mailbox has a patented Fast-Trak Mounting Plate that makes installation easy and quick, while stainless steel hinges and a powder-coated finish maximize weather resistance. The mailbox comes with 3 keys, reflective house numbers, 4 lag bolts, and a drill bit for installation. The locking access door has a commercial-grade high-security wafer lock.

The Architectural Mailboxes Hamilton is designed with your security in mind, featuring a concealed locking compartment that helps protect your mail from theft. With two keys included, you can easily access your important letters and packages. Made from heavy-duty cast aluminum, this mailbox offers exceptional strength and durability, ensuring it withstands the elements. The delivery slot is spacious enough for various items, measuring 12.56 inches wide and 1.75 inches high, making it perfect for magazines and small packages. Additionally, the side access door allows you to retrieve your mail safely, away from traffic, enhancing your convenience.

The Mail Boss Security Mailbox features a rear locking access door, an innovative baffle door, a bi-cam anti-pry latch locking mechanism, and a secure access door with a high-security lock. Its rear locking access door ensures safe mail retrieval, away from street traffic. The baffle door accepts mail bundles and small packages, preventing phishing. The bi-cam anti-pry latch locking mechanism protects from theft, while the 12 disc wafer lock deters drilling and picking. The mailbox is USPS approved, ensuring its reliability.

The Adoorn Locking Mailbox is designed for convenience and security. With a size that accommodates 2-3 days of mail, it ensures that your packages and letters are safe from theft. You can easily access your mail, as it is designed for quick delivery by mail carriers. The mailbox features an anti-phishing panel and an anti-pry latch, which helps to keep your mail secure from porch pirates. Installation is a breeze with multiple hole patterns that fit most posts, allowing you to set it up quickly without hassle.

The Architectural Mailboxes Locking Mailbox is a secure and convenient solution for your mail needs. With its anti-fishing security comb, your mail will be kept safe from theft. The mailbox also features dual outgoing mail clips that are discreetly hidden, along with a magnetic intake door closure. The galvanized steel lock with reinforced bracket and pry resistant retrieval door adds an extra layer of security. This mailbox is designed to accept envelopes and small parcels of various sizes. With its easy installation and durable construction, the Architectural Mailboxes Locking Mailbox is the perfect choice for anyone looking for a reliable and secure mailbox.

The Architectural Mailsafe Mailbox offers excellent security for your mail with its concealed locking compartment, helping to prevent theft. You will receive two keys for easy access, ensuring your important mail is safe. Made from rust-proof polypropylene and galvanized steel, this mailbox is built to withstand wear and tear, giving you long-lasting use. The delivery slot measures 10 inches wide and 1.75 inches high, making it easy to receive various mail types, including magazines and small packages. Plus, the magnetic latch keeps the door securely closed, adding an extra layer of protection.