fluentFormEmailValidationForMultipleForm.php

 add_filter('fluentform_validate_input_item_input_email', function($errorMessage, $field, $formData, $fields, $form) {

	 
  $target_id = [59,60];
  $target_form_id = 0;
	 
  foreach($target_id as $id){
    if($form->id == $id){
      $target_form_id = $id;
    }
  }	   
    if($form->id != $target_form_id ) {
     return $errorMessage ;
    }
     
    if( $formData['email'] !=  $formData['email_1']  ){
        $errorMessage=  ['Error! Email does not match'];
    }
    
    return $errorMessage;
}, 10, 5);