NoBox: PO Box Blocker

Name: NoBox: PO Box Blocker
Brand: Wezy
Rating: 5.0 (3 reviews)

Pricing: $4.99/month. Free trial available.
Rating: 5.0 (3)
Developer: Wezy

PO Box Blocker App features banner with checkout screen.

Block PO Boxes & validate addresses at checkout. Stop failed deliveries & save shipping fees.

Secure your logistics with PO Box Blocker & Validator. Our app automatically blocks PO Box addresses at checkout to prevent delivery failures. The application sets up in seconds. Merchants can easily customize the error message shown to customers or add specific blocking rules for terms like 'pob', 'cedex', or 'packstation'.

Detect all variations including "PO Box", "P.O. Box", "POBOX", and "P.O.BOX"
Customize the error message and add specific blocking rules.
Immediately inform customers when a PO Box used
Integrates seamlessly into your checkout flow.

Languages

English

Works with

Checkout
Shopify Admin

Pricing

Unlimited Plan

$4.99 / month

or $49.99/year and save 17%

Features

Block PO Boxes instantly
Fully customizable messages
Customize Blocking keywords
Seamless checkout integration

7-day free trial

All charges are billed in USD. Recurring and usage-based charges are billed every 30 days.

Reviews (3)

Overall rating

Counts per rating level

100% of ratings are 5 stars
3
0% of ratings are 4 stars
0% of ratings are 3 stars
0% of ratings are 2 stars
0% of ratings are 1 stars

All reviews

February 24, 2026

Kept getting hit with return fees because people were sneaking PO Boxes into the second address line. Installed Wezy, added a couple of variations like "P.O. Box" to the block list, and haven't had an issue since.Took literally a minute. Worth the few bucks a month to save my team the manual work.

Surprise Scoop

United States

4 days using the app

February 28, 2026

We ship heavy items often PO boxes are refused. It was a nightmare having to email customers constantly to ask for a real address before fulfilling the order. Tried another app before but it was too complicated. This one just sits in the checkout and stops them from paying if they type 'PO box'. The dashboard is pretty basic, but honestly you only need to set it up once. Does the job perfectly.

Sydney Padel Club

Australia

January 12, 2026

Honestly a life saver. We had issues with customers shipping to PO boxes via FedEx and getting returns. This app blocked them instantly. Setup took 2 minutes. I also like that we can block specific keywords like 'Parcel Locker'. Highly recommend for the price.

Yabee Anime

France

7 minutes using the app