diff -rupN webform_validation.old/webform_validation.validators.inc webform_validation/webform_validation.validators.inc
--- webform_validation.old/webform_validation.validators.inc	2013-03-08 13:18:57.397678854 -0500
+++ webform_validation/webform_validation.validators.inc	2013-03-08 15:13:19.406678684 -0500
@@ -19,7 +19,7 @@
  * - description (optional): provide a descriptive explanation about the validator
  */
 function webform_validation_webform_validation_validators() {
-  return array(
+  $validators = array(
     'numeric' => array(
       'name' => "Numeric values",
       'component_types' => array(
@@ -252,6 +252,17 @@ function webform_validation_webform_vali
       'description' => t("Validates that user-entered data matches a username"),
     ),
   );
+
+  if (module_exists('email_verify')) {
+    $validators['email_verify'] = array(
+      'name' => 'Email Verify',
+      'component_types' => array(
+        'email',
+      ),
+      'description' => t('Verifies that an email address actually exists using the <a href="https://drupal.org/project/email_verify">Email Verification module</a>.'),
+    );
+  }
+  return $validators;
 }
 
 /**
@@ -511,6 +522,16 @@ function webform_validation_webform_vali
         }
         return $errors;
         break;
+      case 'email_verify':
+        if (module_exists('email_verify')) {
+          foreach ($items as $key => $val) {
+            $error = email_verify_check($val);
+            if ($error) {
+              $errors[$key] = $error;
+            }
+          }
+        }
+        return $errors;
     }
   }
 }