Top 10 Mailboxes for Outside Post Mount – Post-Mount Mailboxes

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1. Mail Boss


Black,Large, Mail Boss 7506 Mail Manager Curbside Locking Security Mailbox

Mail Boss #ad - Security: innovative baffle door accepts small parcels, packages, and a box of checks and also deters fishing. Usps approved full-service residential locking security mailbox prevents mail-identity theft; Stainless steel hinges for ease of use.

Accessories: includes concealed outgoing mail clip, 3 keys, and required installation hardware. Does not include or require Mounting Plate. Quality: 14- and 16-gauge galvanized welded steel construction defends against vandalism. Patented: includes patented anti-pry latch lock mechanism to prevent leveraged entry with a screwdriver & high security anti-drill, anti-pick 12-disc wafer lock.
BrandMail Boss #ad
ManufacturerMail Boss #ad
Height11 Inches
Length21 Inches
Weight22 Pounds
Width10 Inches
Part Number7506
WarrantyLimited Lifetime



Architectural Mailboxes 6200B-10 Oasis Classic Locking Post Mount Parcel Mailbox with High Security Reinforced Lock,Black,18.00 x 15.00 x 11.50 inches

ARCHITECTURAL MAILBOXES #ad - 18-inch d x 14-inch h x 11. 5-inch w, 23-pound - use adapter Plate 7530-10 for 4x4 wood post installation. Doors include rubber seals to keep deliveries clean and dry - all hardware made from stainless steel and other corrosion resistant materials.

Suitable for installation into a pilaster or column - the entire outer shroud is one piece to resist moisture and the elements. Body constructed of heavy 16 and 18 gauge galvanized steel fully powder coated prior to assembly for durability and long life. Postmaster general approved and patented design allows delivery of mail bundles and small parcels - perfect for Internet and catalog shoppers.
ManufacturerArchitectural Mailboxes #ad
Height14 Inches
Length18 Inches
Weight5.91 Pounds
Width11.5 Inches
Part Number6200B-10
Warranty1 year manufacturer limited warranty



ARCHITECTURAL MAILBOXES 7600R Red with Silver Flag MB1 Post Mount Mailbox, Medium

ARCHITECTURAL MAILBOXES #ad - Floor is predrilled with mounting holes in a pattern of 10 in. And also 5 in. Durable contrasting abs flag and easy to open thumb latch already attached to front access door requiring no additional assembly. X 5 in giving you options If you are replacing an existing mailbox. X 4 in. Embossed sides allow for Personalization with house numbers or other adornment. Constructed of galvanized steel and fully powder coated inside and out. Approved by usps.
Height8.66 Inches
Length20.24 Inches
Weight3.68 Pounds
Width6.93 Inches
Part Number7600R
WarrantyLimited lifetime warranty

4. Mail Boss


Black Locking Mailbox with House Numbers, Mail Boss 7500 Manager Pro Curbside Security, Mounting Plate and Pull Out Mail Tray

Mail Boss #ad - Innovative baffle door design allows for delivery of small packages and parcels but prevents fishing. High security locking access door includes patented anti-pry latch locking mechanism and commercial grade 12-disc wafer lock to prevent prying and leveraged entry.

Heavy duty 14- and 16-gauge electro galvanized welded steel construction with durable powder-coated finish defends against vandalism. Includes reflective house numbers, vandal resistant flag, concealed outgoing mail clip, 3 laser cut keys, pull out mail tray, patented fast-Trak Mounting Plate for easy installation on any surface in minutes, and all necessary installation hardware. Usps approved full service curbside locking mailbox for residential use, secures your mail and helps prevent identity theft.
BrandMail Boss #ad
ManufacturerMail Boss #ad
Height11.25 Inches
Length21 Inches
Weight30 Pounds
Width10.75 Inches
Part Number7500
WarrantyLimited Lifetime Warranty

5. Mail Time


Mail Time! ® Yellow Mailbox Alert Flag for Long Driveways

Mail Time #ad - Simple design is very durable - many users have enjoyed their Mail Time! for 10-20 years! Always Made in the USA. Rust-proof aluminum mailbox flag is powdercoated bright yellow for maximum visibility - perfect for long driveways, rural roads, or poor mailbox visibility.

Will not work on any mailbox where door fits flush inside the face of the box, including many wooden mailboxes. Fits on any size metal and most plastic "bread loaf" type mailbox where door closes over lip of the box, including XL Size 2 mailboxes. If mailbox has door latch but not a top latch on the body, simply drill an additional hole on top of box through hole in Mail Time! bracket.
BrandMail Time #ad
ManufacturerJH Wonder Works #ad
Height6 Inches
Length4 Inches
Width0.75 Inches
Part Number932R

6. Gibraltar Mailboxes


Gibraltar Mailboxes Stanley Extra-Large Capacity Galvanized Steel Black, Post-Mount Mailbox, ST200B00

Gibraltar Mailboxes #ad - Match with any Gibraltar mailbox post with the designation letter code D. Extra large size provides 3, 175 cubic inches of space to receive letters, padded envelopes and multiple boxes simultaneously. Black powder-coated finish provides resistance against outdoor elements. Mounting hardware is not included. Door latch and outgoing mail flag can be adjusted for a tighter grip. Mailbox is completely assembled and ready for use. Ribbed body enforces extra strength and stability. Engineered with rust-resistant galvanized steel for extended endurance.
BrandGibraltar Mailboxes #ad
ManufacturerSolar Group #ad
Height15.83 Inches
Length24.69 Inches
Weight11.5 Pounds
Width11.56 Inches
Part NumberST200B00
Warranty7 Year Warranty

7. Gibraltar Mailboxes


Post-Mount Mailbox, Gibraltar Mailboxes Elite Large Capacity Galvanized Steel Green, E1600G00

Gibraltar Mailboxes #ad - Green powder-coated finish is rust-resistant to withstand the elements. Heavy-duty galvanized steel construction provides strength and stability. Large capacity fits larger boxes, padded envelopes, and magazines laid flat. Installs easily onto a variety of Gibraltar posts including the BP000W01 and the WP000W01. Made in the USA.
BrandGibraltar Mailboxes #ad
ManufacturerSolar Group #ad
Height10.9 Inches
Length22.6 Inches
Weight7 Pounds
Width8.7 Inches
Part NumberE16G
Warranty7 year warranty

8. Gibraltar Mailboxes


Post-Mount Mailbox, GMB515B01, Gibraltar Mailboxes Patriot Large Capacity Rust-Proof Plastic Black

Gibraltar Mailboxes #ad - Match with gibraltar Mailboxes posts with the letter designation code E. Wide opening allows easily delivery of packages. Arrived mail indicator flag included. Large capacity fits larger boxes, padded envelopes, and magazines laid flat. Rust-proof plastic construction is highly durable providing strength and stability. Made in the usa; Security: Non-Locking. Fully assembled for convenient installation.
BrandGibraltar Mailboxes #ad
ManufacturerSolar Group, Inc. #ad
Height9.5 Inches
Length21.3 Inches
Weight4 Pounds
Width12.4 Inches
Part NumberGMB515B01

9. Gibraltar Mailboxes


Gibraltar Mailboxes Parsons Medium Capacity Rust-Proof Plastic White, Post-Mount Mailbox, PL10W0201

Gibraltar Mailboxes #ad - Installs easily onto a variety of Gibraltar posts including the BP000W01 and the WP000W01. Ultra-violet inhibitor protects white finish from weathering. Durable polypropylene material is sturdy and rust-proof. Made in the USA. Medium capacity fits small boxes, magazines, and padded envelopes.
BrandGibraltar Mailboxes #ad
ManufacturerSolar Group #ad
Height9.58 Inches
Length19.39 Inches
Weight2.3 Pounds
Width7.9 Inches
Part NumberPL10W
Warranty90 Day Limited Warranty

10. Mayne


Mayne 5811-BK Rockport Double Mailbox Post, White

Mayne #ad - Best suited for mailboxes weighing less than 8lbs. Includes decorative post and 2x mailbox support arms with paper holder - Note: 4x4 wood post, mailbox, and mailbox mounting hardware NOT included with any Mayne mail posts.

Medium mailbox recommended, minimum 6 1/2 inch width. Mayne plastic mail posts are made from high quality 100% polyethylene with built in UV inhibitors for long lasting protection from the elements. Made in the USA. Unique new england styled product offering the timeless charm of the East Coast, installs easily over a standard 4x4 wood post.

Additional measurements: paper holder inset panel measures 3. 25in h x 105in l, top inset panel on the post measures 1. 9in w x 25. 5in h, paper holder mounting surface measures 6. 25in w x 17in L. Product ships in 2 boxes standard post mp5802w / 2x paper holder arms mp5811w. 15 year warranty – residential application, 5 Year Warranty – Commercial Application.
BrandMayne #ad
ManufacturerMayne #ad
Height56 Inches
Length18 Inches
Weight15.87 Pounds
Width23 Inches
Part Number5811-W
Warranty15-Year limited warranty against fading, yellow and cracking