One wrong character is a lost customer.
Email Guard scans every customer in your Shopify store and flags addresses that will bounce — domain typos, invalid syntax and disposable emails. Fix them in one click, without leaving your Admin.
- 5.0 (4)
- Native in Admin
- GDPR-ready
The leak you never see in your reports
When someone mistypes their email at checkout, they’ll never see your welcome flow, post-purchase emails or campaigns — because the address bounced silently. Multiply that over months of sends and the leak becomes real revenue you’ll never recover.
gamil.com → gmail.com@hotmail.con → hotmail.comyahooo.com → yahoo.comoutlok.com → outlook.cominvalid syntax
Scan · Detect · Tag · Fix
Scan
Reads every customer email in your store. No exports, no spreadsheets.
Detect
Checks each email against a curated set of typo patterns and syntax rules.
Tag
Customers with problem emails get a tag to segment or exclude in one click.
Fix
Review and fix. Once corrected, those customers return to your campaigns.
Full control, zero manual work
- Full scan across your entire Shopify customer base.
- Pattern detection for gmail, hotmail, yahoo, outlook and invalid syntax.
- Automatic tagging to find and segment problem emails.
- Manual and bulk fixes with suggestions — you control every change.
- Native Admin experience, built with App Bridge and Polaris.
Real-time protection, before the typo reaches a campaign
Today Email Guard cleans what’s already in your store. The next version notifies the owner in real time when a customer is created with a mistyped email — at checkout, in a form, anywhere.
The way a Shopify app should be built
Embedded in your Admin
No separate dashboard or extra login. App Bridge + Polaris.
GraphQL Admin API
Shopify’s modern stack, built to scale with your store.
Protected Customer Data
Clear purpose, documented retention, named sub-processors, GDPR-aligned.
GDPR webhooks
data_request, redact and shop/redact built in from day one.
No storefront impact
Runs only in your Admin. No effect on your Lighthouse score.
Verified Shopify Partner
Published by Impulsa3 (Shopify Partner ID 3393518).
Start free. Scale when you need to.
- Scan up to 500 customers
- Error detection + dashboard
- Scan customer segments
- Everything in Free
- Scan up to 5,000 customers
- Individual & bulk tagging
- Individual & bulk fixes
- Everything in Starter
- Unlimited customer scans
- Whitelists & custom patterns
- Scheduled scans
- Shopify Flow integration
All charges billed in USD every 30 days. Annual pricing reflects a 20% saving.
Frequently asked questions
No. You review and approve every fix. The app suggests corrections; it never overwrites an address on its own.
Only customer email addresses. We don’t read orders, payments or anything beyond the email field.
No. It runs entirely inside your Admin. It adds no code to your storefront and doesn’t affect your Lighthouse score.
Yes. Scans run in batches that respect the GraphQL Admin API rate limits, so large bases process reliably.
Detection is language-independent — it works on email patterns. The app interface is in English.
Clean your list before your next campaign
Install Email Guard, run a scan and see how many lost contacts you can recover today.