fix ci tests and new default value

Author: furstblumier

charts/docker-mailserver/ci/ci-values.yaml

@@ -1,5 +1,6 @@
 service:
   type: ClusterIP
+  externalTrafficPolicy: Local
 
 configMaps:
   postfix-accounts.cf:

charts/docker-mailserver/values.yaml

@@ -298,13 +298,13 @@ service:
   ## - LoadBalancer (to the world)
   ## - NodePort (to the world, via high port on a node)
   ## - ClusterIP (to the cluster)
-  type: "LoadBalancer"
+  type: "ClusterIP"
   ## Manually overwrite the externalTrafficPolicy. One of:
   ## - Local
   ## - Cluster
   ## Set it to "Local" when used with type "LoadBalancer" and set it to "Cluster" when used with type "ClusterIP" or "NodePort",
   ## unless you have a good reason not to.
-  externalTrafficPolicy: "Local"
+  externalTrafficPolicy: "Cluster"
   ## If there is a port associated with a given service, expose it here.
   # port:
   ## If there is a particular IP that should be used for the service, specify it here.