BoxGuard: PO Box Blocker

BoxGuard: PO Box Blocker

Pricing
Free plan available. Free trial available.
Rating
0.0 (0 Reviews)
Developer
Mad Syntax

Block PO Boxes and restricted addresses at checkout. Prevent failed deliveries and carrier fees.

Carriers like FedEx and UPS cannot deliver to PO Boxes, causing returned packages, reshipment expenses, and address correction penalties. BoxGuard validates shipping addresses directly within Shopify Checkout before payment is processed. You can restrict PO Boxes, military APO/FPO addresses, parcel lockers, and custom keywords, while setting custom error prompts. Exempt trusted customer tags or specific products as needed to protect order fulfillment without slowing down checkout.

Carriers like FedEx and UPS cannot deliver to PO Boxes, causing returned packages, reshipment expenses, and address correction penalties. BoxGuard validates shipping addresses directly within Shopify Checkout before payment is processed. You can restrict PO Boxes, military APO/FPO addresses, parcel lockers, and custom keywords, while setting custom error prompts. Exempt trusted customer tags or specific products as needed to protect order fulfillment without slowing down checkout. more
  • Block PO Boxes and parcel lockers in real time at checkout.
  • Restrict military APO/FPO destinations and custom address keywords.
  • Customize error messages to prompt buyers for a valid street address.
  • Exempt trusted customer tags or apply rules to specific product tags.
  • Apply address validation rules globally or only in selected countries.

Languages

English

Works with

Categories

Pricing

Choose the plan that best fits your business.

Free Plan

Free

Pro Plan

$9.99 / month

or $99/year and save 17%

7-day free trial

All charges are billed in USD. Recurring and usage-based charges are billed every 30 days. See all pricing options

Reviews

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Support

App support provided by Mad Syntax.

Developer

Mad Syntax

Dhaka, BD

Launched

October 31, 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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