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Mighty PO Box Blocker

PO Box Blocker to stop customers from using PO Box...

by PO Box Blocker · Launched: May 2020

5.0 (2) on Shopify Used by 3 Shopify stores Built for Shopify

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Quickly detect and block PO Box addresses and notify customers they need to use a different address.

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About Mighty PO Box Blocker

Mighty PO Box Blocker will stop customers from being able to input PO Boxes as shipping addresses which saves you time and money having to work issues out after the purchase. Whenever a PO Box address is detected, a PO Box Blocker warning is displayed on the cart view and/or the shipping method step of checkout. The warning tells customers that your store does not ship to PO Box addresses and instructs them to specify a new valid residential or commercial address instead. Block PO Box addresses that FedEx, UPS, and DHL do not deliver to. Optimized design for both desktop and mobile devices. Create fully customized warning messages that find your brand. PO Box Blocker pop ups to warn customers they need to input a new address. Show more Show less

Last verified: July 15, 2026 · Fresh

App details

Developer
PO Box Blocker
Category
Orders & shipping
Pricing
Paid
Launched
May 2020
Rating
5.0 (2) on Shopify

Key features

  • Unlimited PO Box blocking capabilities
Integrations with:

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1 plan · 7-day free trial

Professional Plan

$9.85/month

Plans and prices as listed on the Shopify App Store.

Ratings & reviews

based on 7 Shopify App Store reviews

Use the arrows to read individual reviews

Amazing support team, they jumped on a call to provide support and helped with the install process.
— Detect - Dev
It is a great app and I love it, It saved me more than 1000 USD in shipping to PO BOXES. Some customers still placing orders with the PO BOX warning so it would be great if the app has a feature to send the mail notifications for these orders. We can cancel those orders and ask customers to provide physical addresses.
— BLUSHBEES-USA
This app is super simple and easy to install and control. Love the page with 3 simple options to toggle on/off at any time!
— Par en Par
If you're looking for a no-code way to warn your customers that you cannot ship/fulfill orders to PO Boxes, this app takes care of displaying a warning when entering the checkout and if you meet certain criteria, can also provide guidance to your customers during checkout as well, all without having to edit your theme or otherwise modify/edit any code.
— Stuff For Your Dog
Great simple app to block PO boxes. Does the job. Simple enough to let customers know and avoid more fraud.
— LXRandCo USA
This platform plugin is very effective and we have had no issues with it what so ever. Would highly recommend if you are wanting to stop customers' on your website at the cart entering a PO Box into the delivery instructions (if you are unable to provide delivery to PO Boxes). It has saved us so much time.
— enviroCare Earth
Does not stop people from checking out with a PO box. I was able to checkout with a PO box while testing it live on our site. It did nothing to stop me from checking out except add a free shipping method to the order that gave me a warning to enter a PO box. My default shipping still remained as an available option and I was able to check out with that option. But it did not do what it says it wil...
— The Tiki Yard

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