SC ‑ Email Blocker

SC, officially listed on the Shopify App Store as SC ‑ Email Blocker, is a Shopify app in the Fraud category. You can set rules to prevent certain email domains and name patterns from being able to create accounts or checkout. This helps you prevent emails from getting passed to platforms like Klaviyo that may charge you extra for users. We help you decrease fake account bloat and prevent malicious, fraudulent and fake emails from creating orders so you have less to deal with later on. Set custom rules, prevent checkout and get rid of bots, spam and fraud. It averages 5.00 out of 5 across 1 merchant reviews on the Shopify App Store.

SC offers a free plan and 2 paid plans starting at $5/month and going up to $8/month. The paid plans unlock advanced features beyond what's available on the free tier.

Yes — SC offers a free plan alongside paid options. Paid plans start at $5/month for advanced features.

SC launched on March 12, 2026. In that time it has gathered 1 merchant reviews.

SC does not currently carry Shopify's Built for Shopify badge. The badge is awarded to apps that meet Shopify's published standards for performance, ease of use, and merchant value — many high-quality apps operate without it.

Merchants commonly compare SC with Blockify Fraud Filter, Blocker, Chargeflow Prevent Chargebacks, Blocky Fraud Filter IP Blocker, and Dakaas Fraud Filter, Antitheft. Each alternative covers a similar use case but differs on pricing model, integration depth, and the specific themes merchants praise in reviews — see the alternatives section above for a side-by-side.