Mail Boss 7106 Curbside Steel Post Mount Security Locking Mailbox, Black, Extra Large, 21 in. D x 11.125 in. W x 13.75 in. H








Key features
- •Large capacity USPS approved high security locking curbside mailbox made of 12- and 14-gauge electro galvanized steel for strength and durability
- •Patented anti-pry latch locking mechanism and 12-wafer disc lock to prevent leveraged entry
- •Patented Fast-Trak Mounting Plate for easy installation on existing posts in minutes
- •Stainless steel hinges and powder-coated finish for optimum weather resistance
- •Includes 3 keys, reflective house numbers, 4 lag bolts and drill bit for installation. Locking access door with commercial grade high security wafer lock.
BrandMail Boss
CategoryPost-Mount Mailboxes
Size21 in. D x 11.125 in. W x 13.75 in. H
ColorBlack
WarrantyLimited lifetime warranty against manufacturer defects.
Mail Boss 7106 Curbside Steel Post Mount Security Locking Mailbox, Black, Extra Large, 21 in. D x 11.125 in. W x 13.75 in. H
List Price: $273.80$246.42DEALYou Save: $27.38 (10%)
Free shippingFree Returns – 30 daysFree Order CancellationSecure Payment2–3 Days DeliveryGet It June 23, 2026In Stock (8)No marketing spamNo account requiredFulfilment by FedEx / Amazon / UPS / ShipwirePayPal / Card Buyer Protection
Customer Reviews
Reviews sourced from verified Amazon purchasers4.7
out of 5
Based on 10 reviews
5★
90%
4★
10%
3★
0%
2★
0%
1★
0%
Great mail box
Christina Andersen✓ Verified Purchase•August 2, 2023
Works great and doesn't get broken into
Solid, heavy construction
TxRx✓ Verified Purchase•July 23, 2023
Design is a little more pry resistant than big box store alternatives. But lock tab is like all others. Volume is same width, but less tall and deeper than my old box.
I like that the fancy, thick key works smoothly! The lock itself seems more robust than the other locking mailbox offerings. I had to drill out my old mailbox lock after it froze and bent.
Wide flat stock items that barely fit into the box are difficult to remove because the opening for mail retrieval, while taller, is less wide than the postman door.
I like that the fancy, thick key works smoothly! The lock itself seems more robust than the other locking mailbox offerings. I had to drill out my old mailbox lock after it froze and bent.
Wide flat stock items that barely fit into the box are difficult to remove because the opening for mail retrieval, while taller, is less wide than the postman door.
Rock Solid Mailbox - Easy to install
Samurai Sailor✓ Verified Purchase•July 22, 2023
The Mail Boss 7106 is a rock solid mailbox that I installed on a Mail Boss post. Installation is quite easy and I first installed the post by digging a hole 12 inches deep and used a 60 pound bag of fast drying concrete to fill the hole up with the post in place. The fast setting concrete typically sets within 30 minutes and I used a post level to ensure that it is straight as it sets and then installed the plate the mail box the next day. The installation process is very easy and the Mail Boss 7106 has a capacity for about two weeks of mail which is very useful if you travel often.
Sturdy, well built.
sean rourke✓ Verified Purchase•June 6, 2023
Secure. Good looking. Spacious.
Very sturdy
Diana R.✓ Verified Purchase•June 5, 2023
This is a great mailbox. It has prevented theft and damage. Very easy for mail carrier to place mail inside and will not dent with a baseball bat. It will hold quite a bit of mail inside. If you happen to be on vacation and as it's locked, you can fill secured that nobody's getting your mail. There's a nice little slot for outgoing mail if you wish your carrier to take a letter. I would definitely recommend this mailbox and if you need the post also, I hear they hold up to cars running into him.
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