add mail forwarding

app/UI/Client/EmailAccount/Providers/EditAccountDataProvider.php

@@ -115,7 +115,7 @@ class EditAccountDataProvider extends BaseDataProvider
         {
             $value = in_array($field, $fieldToProtection) ? htmlentities($value) : $value;
         }
-        if ($this->formData['forward'] == 'on') {
+        if ($this->formData['forward'] == 'off') {
             $this->formData['zimbraPrefMailLocalDeliveryDisabled'] = FALSE;
             $this->formData['zimbraFeatureMailForwardingEnabled'] = FALSE;
             $this->formData['zimbraPrefMailForwardingAddress'] = NULL;