What does it do?​

UserCheck blocks users from registering with disposable/temporary email addresses. It uses the UserCheck.com API to validate email addresses in real-time during registration, helping to reduce spam accounts and improve the quality of your member base.

Automatic Detection - Validates against a daily updated database of disposable emails and domains
Two Validation Modes - Choose between full email validation or domain-only (for privacy)
Free Tier Available - 1,000 API validations per month at no cost
Easy Setup - Auto-redirects to settings after installation
Clean Integration - Extends XenForo's existing validation with no core modifications
Fail-Safe Design - If the API is down, registrations continue normally

Screenshots​

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How it Works​

1. User attempts to register with an email address
2. The add-on checks the email/domain with the UserCheck API
3. If it's a disposable email, registration is blocked with a friendly error message
4. If the API is unavailable, registration proceeds normally (fail-open design)
5. Download the add-on
6. Upload to your XenForo installation
7. Install via Admin CP
8. Get your free API key from app.usercheck.com
9. Configure and you're done!

• The add-on itself is completely free
• UserCheck API offers 1,000 free requests/month
• Paid plans available for larger forums
• XenForo 2.3.0+
• PHP 7.4+

Télécharger V1.0.0 :

Version 1.0.1 Bugfix : Fix an issue when using the domain endpoint.

Télécharger V1.0.1 :

Version 1.0.2 Fix wrongly blocked addresses and server error log noise :​

Two fixes, both prompted by feedback in the discussion thread.

Addresses containing ?, # or % are no longer wrongly rejected. These are valid under RFC and XenForo accepts them, but they weren't escaped in the API request, so the check came back "invalid" and the registration was blocked.

Transient API problems no longer write to the server error log. Timeouts, connection failures and server errors already allowed the registration through. The log entry just made a working board look broken. Only conditions you need to act on are logged now (rejected API key, exhausted monthly credits), at most once an hour.

Also: the API is no longer called when a save doesn't actually change the email address, which saves a credit on every user edit.

Télécharger V1.0.2 :