Custom validate Ninja Form email field

NinjaForms.js

jQuery(document).ready(function ($) {
    if (typeof Marionette !== 'undefined') {

        const banned_email_domains = [
            '@gmail',
            '@ymail',
            '@live',
            '@yahoo',
            '@yandex',
            '@hotmail',
            '@protonmail',
            '@hotmail',
            '@outlook',
            '@ukr',
            '@mail',
            '@icloud',
            '@test',
            '@user',
        ];

        var myCustomFieldController = Marionette.Object.extend({
            initialize: function () {
                var submitChannel = Backbone.Radio.channel('submit');
                this.listenTo(submitChannel, 'validate:field', this.validateRequired);

                var fieldsChannel = Backbone.Radio.channel('fields');
                this.listenTo(fieldsChannel, 'change:modelValue', this.validateRequired);
            },
            validateRequired: function (model) {
                if (model.get('type') === 'email') {
                    let value = model.get('value');
                    if (banned_email_domains.some((banned_domain) => value.includes(banned_domain))) {
                        Backbone.Radio.channel('fields').request('add:error', model.get('id'), 'email-domain-validate-field-error', 'Please use your business email');
                    } else {
                        Backbone.Radio.channel('fields').request('remove:error', model.get('id'), 'email-domain-validate-field-error');
                    }
                } else {
                    return;
                }
            }
        });

        new myCustomFieldController();
    }
});