add_filter('wpcf7_validate_email*', 'block_spam_domain_cf7', 20, 2); add_filter('wpcf7_validate_email', 'block_spam_domain_cf7', 20, 2); function block_spam_domain_cf7($result, $tag) { $email = isset($_POST[$tag->name]) ? $_POST[$tag->name] : ''; if (strpos($email, '@me-game.store') !== false) { $result->invalidate($tag, "Este dominio no está permitido."); } return $result; }