The operating system for modern mail & shipping stores

Everyone else digitizes your mailbox. We run your whole store.

Run shipping, mailboxes, compliance, and payments from one platform under your own brand — not four systems that don't talk to each other.

Built for independent mailbox, CMRA, pack-and-ship, and business-service stores — by an operator who's run one live for 11 years.
Proof, not promises
11 yrs
run live, every day
845,000+
packages received
50,000+
customers served
159,000+
transactions processed

Not a demo store — a real, working ship center that runs on Postern. Busiest single day: 1,556 packages across the counter, and the system kept pace.

Why operators switch

From stitched-together tools to one connected store.

Most stores run the counter on one system, the mailboxes on another, payments on a third — and the same customer re-keyed into each. That's the daily tax Postern removes.

Before — disconnected

  • Separate POS for the counter
  • Separate software for mailboxes
  • A different card processor
  • Compliance tracked in spreadsheets
  • Multiple logins, multiple customer lists
  • The same customer re-keyed everywhere

After — on Postern

  • One platform for counter and cloud
  • One customer record across every service
  • Payments tied to the work automatically
  • Compliance captured as you onboard
  • One login, one brand, one set of numbers
  • A complete activity history per customer
Counter
Walk-in shipping & POS
Online
Virtual mailroom & portal
Postern
One owned platform

One login. One payment rail. One brand — yours.

The platform

Everything your store runs on. Nothing bolted on.

Built to run a real brick-and-mortar ship center end to end — not assembled from three vendors.

Counter & shipping

Ship USPS, UPS & FedEx at discounted rates, domestic and international, at the markup you set. You earn margin on every label from day one — including the jobs most stores turn away.

Fast mail intake

Scan a piece to a customer and they're notified in seconds — you choose whether to bill for it, per piece.

Physical & virtual boxes

Turn the boxes you already rent into a new online revenue stream — billable to existing customers on day one.

USPS compliance

Verify in person or over video, monitor every ID's expiry, and file your quarterly certification in one click.

Payments with no markup

One payment system across your counter and online portal — card and ACH at the real rate, with no Postern markup — underwritten for a mailbox business, so your account isn't shut off in review.

Registered agent

Many of your mailbox customers are businesses — and a business needs a registered agent too. Offer both from one system: one customer, two recurring revenue lines.

The quarterly headache

Compliance week: a spreadsheet, a stack of IDs, and a deadline that doesn't care.

Four times a year, it's you against a government website — re-keying records, re-uploading documents, and chasing IDs that expired without warning.

One mistake can put mail delivery for your entire store at risk. Every box. Every customer.

Postern makes certification week boring.

  • No more re-keying — every record is captured once, when the customer signs up
  • No more hunting — every ID's expiry is watched and flagged before it lapses
  • No more wondering — file in one click, and know it actually landed
See how it works →
Where the fees quietly add up

The real rate, your markup, and no surprises on the statement.

Card processing quietly erodes most ship centers' margins once the add-on fees accumulate — often past 8.9%. Postern passes through the real rate with no markup — on payments and shipping — and it's underwritten for a mailbox business, so your account isn't shut off when it comes up for review.

See exactly how pricing works →

"Our year-end statement showed we'd been paying 8.9% just to take cards."

— a mailbox-store operator, on their old processor
The connected workflow

One customer, one record, the whole way through.

From sign-up to billing, every step lands on the same customer profile — no re-keying, no lost context.

01Customer signs up

Online or a walk-in at the counter — one entry point.

02Verified once

ID captured in person or over live video — into their profile.

03Paperwork captured

The USPS paperwork is signed and filed in the same flow.

04Mail & packages land

Each piece is logged to the right customer as it arrives.

05They know in seconds

Automatic notification the moment something lands.

06They request an action

Scan, forward, hold, or pickup — right from the portal.

07Billing follows the work

Every charge lands on their account automatically.

08You see everything

The complete history, per customer — staff and owner alike.

Grow past your walls

Sign up customers who never walk in.

Verify a new mailbox customer over live video — anywhere in the country, or the world. Many of them are businesses that also need a registered agent, so you offer both from one system: one customer, two recurring revenue lines, and a market far bigger than your zip code.

See how it works →
Go deeper

Guides, comparisons, and the compliance details — all in one place.

Browse guides & articles →
Own it

Your brand. Your customers. Your revenue.

Not software you buy — an entire operating system, plus a proven playbook, all under your own brand. Your customers stay yours. Postern runs your whole operation and shares in what it earns, so we grow when you grow.

No license feeFree to run
No per-box feeNo tax on growth
No per-scan feeNo meter running
No payment markupThe real rate
Switching

Move over on your schedule — not a big-bang cutover.

01Intro call & store assessment

We map your counter, mailboxes, payments, and compliance to Postern.

02Data import & setup

Your customer book imports in one step; the online side needs nothing ported.

03Staff training & dry run

Your team runs Postern alongside the old system until it's comfortable.

04Go-live on your renewal cycle

Switch when it suits you — with a direct line to the team behind it.

Questions operators ask

Straight answers, no sales spin.

What is Postern, exactly?

Postern is one platform that runs your whole ship store — the walk-in shipping counter, your mailbox customers online and off, payments, and the USPS paperwork that keeps you open — all under your own brand. Most tools digitize one piece of the mailbox. Postern runs the whole operation.

Do I have to rip out the software I use now?

No. We move you over on your renewal cycle, not in a big-bang cutover — your existing customer book imports in one step, and the new online side needs nothing ported. You keep running the whole time you switch.

What does it cost?

Nothing to run. The software is free — no license, no per-box fee, no per-scan fee, and no markup on your payments. Postern simply shares in what your store earns, so we only make money when you do — we grow when you grow.

Is this really run in a real store?

Yes. Postern was built by an operator and has run a live ship center every day for over 11 years — 845,000+ packages received and 50,000+ customers served. It's a working store, not a demo.

I wasn't shopping for new software — why look now?

Because the USPS compliance deadline comes four times a year, and getting cleanly compliant takes about a year to migrate. The calm time to move is between deadlines — not the week one is due.

Built by an operator who runs the counter

See your whole store running on one platform.

Book a 30-minute demo. Bring your current software — we'll show you exactly what moves and what your counter looks like the day after you switch.

Book a Store Workflow Demo

Switching is the easy part — we move you over on a renewal cycle, no big-bang cutover.