About this plugin
LeadCop Disposable Email Checker connects your WordPress site to the LeadCop API to perform real-time verification and block invalid signups. The plugin prevents temporary burner emails from ever reaching your database, protecting your sender reputation, email deliverability, WooCommerce conversion analytics, and marketing forms.
Third Party Services
io service to validate email addresses. During validation requests, the plugin transmits metadata and email addresses to the LeadCop API servers.
io when email validation is performed:
- Email address submitted by the user
- Website URL (used to verify API authorization and domain ownership)
- Validation metadata (form integration type and request source)
This data is transmitted securely over HTTPS and is used solely for email validation, disposable email detection, role-account detection, free email provider detection, and domain/TLD validation.
For details on data handling and user privacy, please refer to the:
io/privacy-policy
io/terms-of-service
Key Features
- Disposable Email Detection – Automatically rejects temporary, single-use, and burner email addresses (e.g. Mailinator, TempMail).
- Role Email Detection – Detects and blocks generic team alias mailboxes (e.g., info@, sales@, support@) or warns users depending on your policy.
- Free Provider Detection – Optionally filters consumer accounts (gmail.com, yahoo.com) to force business/work signups on B2B forms.
- Invalid TLD Detection – Blocks invalid domain extensions/TLDs to prevent typing errors and invalid domains.
- Spam Signup Prevention – Blocks bots, spammers, and fake domains from registering accounts or submitting forms.
- WooCommerce Checkout & Registration Protection – Native integration to prevent checkout blockages or fake sales orders from temporary emails.
- Newsletter Protection – Includes a simple shortcode [leadcop_subscribe] and widget to capture and validate newsletter subscribers.
- Onboarding Assistant – Quick setup wizard guides you from API key entry to active form protection in less than 2 minutes.
Developer-Friendly
Includes the leadcop_validate_email() helper function for custom themes and custom forms. Done completely server-side, ensuring your API key is not exposed in public scripts.