This add-on for Gravity Forms allows administrators to block form submissions from specific email addresses or domains, improving data quality and reducing spam. It is designed for site owners who need to filter out unwanted entries, such as generic or competitor emails, from their contact forms.

Blacklist Management: Create lists of blocked email addresses, domains, or top-level domains using wildcards, with support for thousands of rules in a single string. Flexible Settings: Configure global blacklists and validation messages that apply to all forms, with the ability to override them on individual email fields for customized control. Submission Handling: Choose to either block submissions with a validation error or collect them and mark as spam, depending on your workflow needs. Advanced Features: Includes filters for third-party plugins to modify validation messages or checks, and handles conditional logic for hidden email fields. Error Prevention: Built to handle invalid syntax in blacklist rules gracefully, reducing false positives and ensuring reliable operation across different server environments.