Every Mail Boss mailbox is a locking, powder-coated galvanized steel box with an anti-pry latch, so the real choice is size and access. The Mail Manager is the all-rounder, the PRO adds a mounting plate and mail tray, the Street Safe lets you collect from behind the box, the Mail Boss Ultimate holds the most letters, and the Package Master takes small parcels. All of them are in our Mail Boss mailbox collection.
Mail Boss is made by Epoch Design, and it is the brand our customers buy most. This guide compares each model we sell using the manufacturer's specs, then covers posts, base plates and the double, triple and quad packages for shared driveways.
What every Mail Boss mailbox has in common
- Welded, electro-galvanized steel with a powder-coated finish and stainless steel hinges.
- A locking access door with a commercial-grade wafer lock and 3 keys.
- A patented anti-pry latch designed to resist leveraged entry, which is how most locking boxes get broken into.
- A vandal-resistant flag and installation hardware.
- Curbside approval: the post-mount models are listed as Postmaster approved for curbside delivery. Your local postmaster still has the final say on placement.
Where they differ is the size of the incoming mail opening, how much mail they store, which side you open them from, and how they mount.
Mail Boss models compared
| Model | Size per Mail Boss (H x W x D) | Steel gauge | Retrieval door | Takes small packages? | Mail storage |
|---|---|---|---|---|---|
| Mail Manager | 11.1" x 10.8" x 20.9" | 14 and 16 | Front | Yes, up to 3.5" H x 10.2" W opening | About 3 to 7 days |
| Mail Manager PRO | 12.4" x 10.8" x 20.9" | 14 and 16 | Front | Yes | About 3 to 7 days |
| Mail Manager Street Safe | 11.1" x 10.8" x 21.5" | Heavy-duty galvanized | Rear only | Yes (mail bundles and small packages) | Not stated |
| Street Safe Latitude | 11.1" x 10.8" x 21.5" | Heavy-duty galvanized | Front and rear | Yes (mail bundles and small packages) | Not stated |
| Mail Boss Ultimate (High-Security) | 13.6" x 11.2" x 21" | 12 and 14 | Front | No, slot fits a box of checks (1.9" x 10.25") | About 1 to 2 weeks |
| Package Master | 16.4" x 12" x 21.5" | 12 and 14 | Front | Yes, up to about 4.5" x 4.5" x 10.5" | About 7 to 10 days |
Sizes are Mail Boss's published figures; some of our product listings round them slightly differently. Measure against the box itself before you cut a column opening.
Mail Manager: the all-round choice
The Mail Boss Mail Manager is the model we recommend most often for a single home on a curbside route. It is built from 14 and 16 gauge steel, has a baffle door that accepts mail bundles, magazines and small packages while blocking anyone fishing for mail, and holds roughly 3 to 7 days of mail.
It uses a universal hole pattern, so it does not need a mounting plate and fits most posts. It comes in black, bronze, granite, alpine white and a wood grain finish. If you want the box and a matching post together, choose the Mail Manager mailbox and post package.
Choose it if: you want a locking box that takes small parcels and you do not need extra capacity or rear access.
Mail Manager vs Mail Manager PRO
The Mail Manager PRO uses the same locking system and anti-pry latch. According to Mail Boss, the PRO adds three things: a Fast-Trak mounting plate with its hardware, a pull-out mail tray and reflective house numbers. Mail Boss lists it as slightly taller than the standard Mail Manager.
Choose the PRO if: you value an easier, more rigid mount and a tray that makes collecting mail simpler. If you are mounting on a post that already suits the universal hole pattern, the standard Mail Manager does the same security job.
Mail Manager vs Street Safe and Street Safe Latitude
The Street Safe takes mail through a front baffle door, like the Mail Manager, but you collect it from a locking door at the back of the box. That means you can get your mail from the yard side instead of standing in the road, which is the main reason to buy one on a busy street.
The Street Safe Latitude has locking doors on both the front and the rear, so you can open it from either side. It suits a box that is reached from the street on some days and the yard on others, or a household where different people come from different directions.
Both are listed in black on our site. Matching post packages are available for the Street Safe and the Latitude.
Mail Boss Ultimate: maximum letter security
The Mail Boss Ultimate High-Security Locking Mailbox (listed by Mail Boss simply as the Mail Boss) uses heavier 12 and 14 gauge steel, a Fast-Trak mounting bracket and a plastic floor liner. It holds about one to two weeks of mail, the most of any letter box in the lineup.
The trade-off is the slot. It is sized for letters and flats, up to about a box of checks, and it does not accept small packages. That is deliberate: a narrower opening is harder to fish.
Choose it if: you travel, you get checks or sensitive documents, and your parcels go to the porch or a separate package box.
Package Master: for small parcels
The Package Master is the biggest Mail Boss post-mount box: about 16 inches tall and 12 inches wide, in 12 and 14 gauge steel. Its Mail Shield baffle accepts packages up to roughly 4.5 x 4.5 x 10.5 inches and it holds about 7 to 10 days of mail.
That covers pill bottles, phone accessories, cosmetics and padded mailers, but not shoe boxes. If most of your deliveries are bigger, pair a letter box with a dedicated package drop box; our guide to choosing a mailbox for packages explains the options. It is the largest model in the line, so mount it on a solid post, ideally a Mail Boss steel post, rather than an old wood one.
Mail Boss wall-mount models
For door delivery, Mail Boss makes two locking wall-mount boxes we carry, both in 14 and 16 gauge steel with the same 12-disc wafer lock and anti-pry latch:
- Metro: about 15.4" W x 14.75" H x 7.15" D per Mail Boss. Mounts on a wall, or on a post with an optional Mail Boss post.
- Townhouse: listed by Mail Boss as slightly larger, about 15.75" W x 16" H x 7.5" D, with the same wall or post mounting options.
The Olympus drop box looks similar but is not a mailbox. It is made for payment, check and key drops, and the listing says it is not suitable for residential mail delivery and does not accept magazines or envelopes, so do not buy it for USPS delivery.
Not sure whether you need a wall or post box? Read wall-mount vs post-mount mailbox, and remember that switching from curbside to a wall box needs your postmaster's permission.
Mail Boss posts, base plates and spreader bars
Mail Boss boxes bolt to Mail Boss posts with matching hole patterns, which is the simplest way to get a rigid, theft-resistant install.
| Part | What it is | Use it when |
|---|---|---|
| In-ground post | 43" powder-coated galvanized steel post, typically buried about a foot deep in concrete | You are installing in soil |
| Surface mount post and base plate | Short (27") or taller post with a 10 gauge steel base plate and 4 bolts | You are bolting to a concrete pad, sidewalk or curb |
| Base plate only | 10 gauge steel plate, sold separately | You already have a Mail Boss surface mount post |
| 2, 3 and 4-box spreader bars | Steel bars that hold several boxes on one post | Building your own multi-box setup |
Before you set any post, call 811 so buried lines are marked, and check the final height against USPS guidance; our guides on how to install a mailbox and mailbox height walk through it.
Double, triple and quad Mail Boss packages
For shared driveways and small rows of homes, Mail Boss packages put two, three or four boxes on one post with a spreader bar. Each household gets its own locking box and keys. We carry these in three box styles:
- Mail Manager packages: double, triple and quad. The most flexible option, and they take small packages.
- High-Security (Ultimate) packages: double, triple and quad, for neighbors who want maximum letter capacity.
- Package Master packages: double, triple and quad, for neighbors who all get regular small parcels.
Each package includes the boxes, the spreader bar and your choice of in-ground or surface mount post. See our double, triple and quad mailbox post guide for layout and spacing.
When another brand fits better
Mail Boss is our first recommendation for locking steel curbside boxes, but it is not the answer to every job:
- Decorative or personalized: Whitehall's cast aluminum boxes, such as the Capitol and Balmoral, take name and address plaques. See Whitehall.
- Aluminum, coastal areas, multi-box rows: Salsbury's all-aluminum roadside mailboxes and mail chests lock front and rear and share pedestals with spreaders. See Salsbury Industries.
- Compact or modern wall-mount: Ecco's E9 and E10 come in stainless steel. See Ecco.
- Heavy-duty letter lockers with lock upgrades: Jayco's letter lockers offer optional Medeco lock levels. See Jayco.
Three things buyers ask after choosing a model
- Can I leave it unlocked? Not as shipped. On High-Security boxes, the door hangs down if you do not lock the secure compartment. If you want it unlocked, you need an aftermarket part from Mail Boss.
- Does the secure compartment take outgoing mail? No. The Mail Manager has an outgoing mail clip at the opening, and it is not locked.
- Is there a master key? No. Each box has its own three keys, and the rear door on a rear-access model uses the same key as the front. Mail Boss keeps no record of key numbers.
On color, black makes up about three of every four Mail Boss units we have sold since 2023. Bronze is a distant second.
Which Mail Boss should I buy?
| If you... | Buy |
|---|---|
| Want one locking box that does it all | Mail Manager |
| Want an easier, plate-mounted install and a pull-out tray | Mail Manager PRO |
| Live on a busy road | Street Safe (rear only) or Street Safe Latitude (front and rear) |
| Travel or get checks and documents | Mail Boss Ultimate |
| Get several small parcels a week | Package Master |
| Have door delivery | Metro or Townhouse |
| Share a driveway with neighbors | Double, triple or quad package |
For picks across all brands, see our best mailboxes of 2027, and for a broader look at features, the locking mailbox buying guide.
Mail Boss questions
What is the difference between a High-Security and a Mail Manager quad?
The High-Security box is slightly larger and uses thicker steel, but it cannot accept small packages. The Mail Manager can.
Are Mail Boss mailboxes USPS approved?
The Mail Boss post-mount models are listed as Postmaster approved for curbside delivery. Your local postmaster still decides placement, so check before installing.
What is the difference between the Mail Manager and the Mail Manager PRO?
Same lock, latch and steel body. Per Mail Boss, the PRO adds a Fast-Trak mounting plate, a pull-out mail tray and reflective house numbers, and it is slightly taller.
Which Mail Boss holds packages?
The Package Master takes the largest parcels, up to about 4.5 x 4.5 x 10.5 inches. The Mail Manager and Street Safe take small packages. The Mail Boss Ultimate takes letters and flats only.
Can I put a Mail Boss on my existing wood post?
The Mail Manager's universal hole pattern fits many posts, but the heavier models are best on a Mail Boss steel post. A sound 4x4 post may work for lighter boxes; check the fit first.
What if I lose my Mail Boss key?
Each box ships with 3 keys. If you lose them all, contact us with your model and we will help you find a replacement lock. See our guide to getting a new mailbox key.
Does the Mail Boss Street Safe have a front door?
The Street Safe has a front baffle for incoming mail and a locking rear door for retrieval. If you also want a locking front door, choose the Street Safe Latitude.
Shop
Browse every model in our Mail Boss collection or compare across brands in locking mailboxes. Questions about fit or mounting? Contact us.
******It is always recommended to contact your local postmaster prior to installation. While most of our mailboxes are USPS-approved your local postmaster may have specific preferences in terms of mailbox types and installation location******