NoBox: PO Box Blocker

NoBox: PO Box Blocker

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

Block PO Boxes, ZIP codes, cities, states & military addresses at checkout. Stop failed deliveries.

NoBox prevents failed deliveries by blocking orders with PO Box addresses at checkout. It detects all common PO Box formats in both address fields and lets merchants add their own custom blocking keywords. The app also blocks restricted ZIP codes, postal code ranges, cities, states, countries, and military addresses. For international merchants, it detects PO Box equivalents in six languages. Specific products or variants can be exempted from all blocking rules. Error messages are customizable.

NoBox prevents failed deliveries by blocking orders with PO Box addresses at checkout. It detects all common PO Box formats in both address fields and lets merchants add their own custom blocking keywords. The app also blocks restricted ZIP codes, postal code ranges, cities, states, countries, and military addresses. For international merchants, it detects PO Box equivalents in six languages. Specific products or variants can be exempted from all blocking rules. Error messages are customizable. more
  • Detect all variations including "PO Box", "P.O. Box", "POBOX", and "P.O.BOX"
  • Fully customizable error messages and keywords
  • Block ZIP codes, cities, states & countries
  • Product & variant exemptions from blocking rules
  • International PO Box keywords in 6 languages

Languages

English

Works with

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
  • Premium support

7-day free trial

Pro plan

$9.99 / month

or $99.90/year and save 17%

Features

  • ZIP code and range blocking
  • City and state blocking
  • Country blocking
  • Military address blocking
  • APO, FPO, and DPO detection
  • International keywords in 6 languages
  • Product and variant exemptions
  • Premium support

7-day free trial

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

Reviews (3)

Overall rating
5
Counts per rating level
  • 100% of ratings are 5 stars
  • 0% of ratings are 4 stars
  • 0% of ratings are 3 stars
  • 0% of ratings are 2 stars
  • 0% of ratings are 1 stars
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
3 days using the app
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
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

Support

App support provided by Wezy.

Developer

Wezy

VILLEJUIF, FR

Launched

January 12, 2026

Data access

This app needs access to the following data to work on your store. Learn why in the developer's privacy policy .

View staff and contributor data:

Store owner

  • Store owner

    Name, email address, phone number, physical address

View and edit store data:

Shopify Functions

  • Edit Shopify Functions

    Cart and checkout validations

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