diff --git a/charts/mok/Chart.yaml b/charts/mok/Chart.yaml
index a1b602cf47619f6c8bf29df6bf0f50471d82855a..410a2feb52382b114659f5a603b2da1e33c8c9db 100644
--- a/charts/mok/Chart.yaml
+++ b/charts/mok/Chart.yaml
@@ -3,7 +3,7 @@ name: mok
 description: |
   Mail on Kubernetes (MoK) is a project to deploy a functional mailserver that runs without a database server on Kubernetes, taking advantage of configmaps and secret.
 type: application
-version: 0.5.0 
+version: 0.5.1
 sources:
   - https://de.postfix.org/ftpmirror/index.html
   - https://github.com/dovecot/core
diff --git a/charts/mok/values.yaml b/charts/mok/values.yaml
index 6a39313e70ece5ce751cfbacfb8e6079f740c5d6..0002a3c6cfb0644966f2189864a99ec6da0efdf2 100644
--- a/charts/mok/values.yaml
+++ b/charts/mok/values.yaml
@@ -44,7 +44,7 @@ postfix:
     repository: quay.io/shivering-isles/postfix
     pullPolicy: IfNotPresent
     # -- Overrides the image tag whose default is "latest"
-    tag: "0.2.2"
+    tag: "0.2.3"
 
   imagePullSecrets: []
 
diff --git a/images/postfix/.release b/images/postfix/.release
index 27146f86d6468ad5edae78f143ccf21e8f5851d6..5bf903b79e9b4a501e8e540d4a851a9b3b0322bf 100644
--- a/images/postfix/.release
+++ b/images/postfix/.release
@@ -1 +1 @@
-release=0.2.2
+release=0.2.3
diff --git a/images/postfix/config/main.cf b/images/postfix/config/main.cf
index f493d0d7493080d66797294e76e8517957ef5b5c..db10641a7f6824015d630021ccaafe43ee0655b5 100644
--- a/images/postfix/config/main.cf
+++ b/images/postfix/config/main.cf
@@ -105,9 +105,6 @@ postscreen_dnsbl_sites =
         psbl.surriel.com,
         dnsbl.inps.de,
         swl.spamhaus.org*-10,
-        list.dnswl.org=127.0.[0..255].1*-2,
-        list.dnswl.org=127.0.[0..255].2*-10,
-        list.dnswl.org=127.0.[0..255].3*-100
 
 ########
 ##