Webmail validation.html

<script>
  
  /**
    * Do not remove this section; it allows our team to troubleshoot and track feature adoption. 
    * TS:0002-07-017
  */
  
  lp.jQuery(function($) {
  
    // Replace email_address with the actual ID of your form field.
    var field = 'email_address';
    
    // Optionally change this to customize the validation error that your visitors will see if they enter a webmail address.
    var message = 'Please enter your work mail address.';
  
    var rules = module.lp.form.data.validationRules[field];
    $.validator.addMethod('notWebmail', function(value, field) {
      var valid = /\@(?!(me|mac|icloud|gmail|googlemail|hotmail|live|msn|outlook|yahoo|ymail|aol)\.)/.test(value.toLowerCase());
      return valid || (!rules.required && !value);
    }, message);
    rules.notWebmail = true;
  
  });

</script>