Digits – Email Filter

Digits – Email Filter

When managing mobile-first WordPress membership platforms, controlling the email domain access can be crucial. The Digits – Email Filter add-on empowers site admins to whitelist or blacklist specific email domains during user registration. Whether you’re allowing only company emails or blocking disposable ones, this tool gives you granular control over the signup process.

This add-on enhances the Digits plugin’s core functionality by adding a validation layer before account creation. Administrators can enter a list of approved or restricted domains directly in the plugin settings, and users trying to register with unauthorized domains will receive a customized error message. It works in real time, preventing users from even reaching the verification stage.

From a technical standpoint, the validation runs client-side and server-side for enhanced accuracy. It supports wildcards for domain patterns, enabling flexible control (e.g., blocking all subdomains of a domain). The plugin is also optimized to work with caching and is fully compatible with multilingual setups.

The Digits Email Filter is particularly useful in educational or corporate contexts, where access should be limited to certain email providers. It also enhances user data quality by discouraging temporary or fake email accounts often used for spam or abuse.

Key Features:

• Block or allow specific email domains during registration
• Supports wildcard domain matching
• Real-time validation with error feedback
• Fully integrated with the Digits plugin
• Works with caching and multilingual setups
• Helps block spam or disposable emails
• Custom error messages for unauthorized domains