Gravity Forms Block Email Domains

Gravity Forms Block Email Domains is an add-on plugin for Gravity Forms that allows you to define a comma-separated list of email domains to block on each email field. Custom validation messages can be set as well. Blocked email domains will prevent the form from being submitted and prompt the user to enter a non-blocked email address.

Example usage: Some companies want inquiries to only come from business email addresses. This plugin can block Gmail, Yahoo, MSN or other personal email address domains from being submitted in the form; providing a validation message indicating that the user must enter a business email address.