add mail forwarding

app/Enums/Zimbra.php

@@ -94,7 +94,9 @@ class Zimbra
         'zimbraFeatureSavedSearchesEnabled',
         'zimbraFeaturePeopleSearchEnabled',
         'zimbraFeatureSMIMEEnabled',
-        'zimbraFeatureEwsEnabled'
+        'zimbraFeatureEwsEnabled',
+        'zimbraPrefMailForwardingAddress',
+        'zimbraPrefMailLocalDeliveryDisabled'
     ];
 
 }