Mighty PO Box Blocker
PO Box Blocker to stop customers from using PO Box addresses
Developed by PO Box Blocker
App Overview
Mighty PO Box Blocker helps online stores prevent customers from using PO Boxes as shipping addresses, which can save time and reduce costs associated with resolving delivery issues after purchase. The app detects PO Box addresses and displays customized warning messages on the cart view or during checkout, informing customers that your store doesn't ship to PO Boxes and encouraging them to provide a valid residential or commercial address instead. It works seamlessly with major carriers like FedEx, UPS, and DHL, ensuring compatibility and ease of use for both desktop and mobile shoppers. With customizable alerts and a user-friendly design, Mighty PO Box Blocker helps maintain smooth checkout processes while guiding customers toward correct address entries.
Screenshots

Quickly detect and block PO Box addresses and notify customers they need to use a different address.
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.
Key Features
- 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.
Mighty PO Box Blocker FAQs
No. Mighty PO Box Blocker pricing starts at $9.85. For more details about Mighty PO Box Blocker pricing, check here.

Get in Touch
with us
Whether you need more information on how LetsMetrix can help enhance your Shopify experience, or require technical support, don't hesitate to contact us. We're available 24/7 via email, phone, or live chat to ensure you have all the assistance you need.
