diff --git a/wheezy/95_alternc.conf b/wheezy/95_alternc.conf
index c4d66687..2913e20d 100644
--- a/wheezy/95_alternc.conf
+++ b/wheezy/95_alternc.conf
@@ -338,3 +338,6 @@ service dict {
   }
 }
 
+plugin {
+       sieve_vacation_dont_check_recipient = yes
+}