diff --git a/charts/mok/Chart.yaml b/charts/mok/Chart.yaml
index 6ac5765c8f0176239b558d2ec35ca0ddface46bc..d419a673b789fb6f78c5d7184d076ee99db74edb 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: 0.6.3
+version: 0.7.0
 sources:
   - https://de.postfix.org/ftpmirror/index.html
   - https://github.com/dovecot/core
diff --git a/charts/mok/README.md b/charts/mok/README.md
index 1d8f20db0712e1428dfa5b7c789424b52f89b288..5995695cde2471ebf25297aafb96d5281c519b1e 100644
--- a/charts/mok/README.md
+++ b/charts/mok/README.md
@@ -1,6 +1,6 @@
 # mok
 
-![Version: 0.6.3](https://img.shields.io/badge/Version-0.6.3-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square)
+![Version: 0.7.0](https://img.shields.io/badge/Version-0.7.0-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square)
 
 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.
 
@@ -79,6 +79,7 @@ Mail on Kubernetes (MoK) is a project to deploy a functional mailserver that run
 | postfix.securityContext.capabilities.add[6] | string | `"DAC_OVERRIDE"` | required to setup TLS and alike |
 | postfix.securityContext.capabilities.drop[0] | string | `"ALL"` | getting rid of all capabilities since we already have too many |
 | postfix.securityContext.runAsNonRoot | bool | `false` |  |
+| postfix.service.public.externalTrafficPolicy | string | `"Local"` |  |
 | postfix.service.public.type | string | `"LoadBalancer"` | type of the public endpoint for smtp, submission, and submissions. **Note**: It's configured to share the IP with dovecot in case of metallb |
 | postfix.tls.secretName | string | `"nil"` | secret holding the TLS keys for postfix. **Required** |
 | postfix.tolerations | list | `[]` |  |
diff --git a/charts/mok/templates/postfix.yaml b/charts/mok/templates/postfix.yaml
index ab3b7ae5b70d1910f9304e8ee62a7f4e182af847..00326b5fd7604a745aae9403f816fa281696f31b 100644
--- a/charts/mok/templates/postfix.yaml
+++ b/charts/mok/templates/postfix.yaml
@@ -27,6 +27,7 @@ spec:
     {{- include "mok.selectorLabels" . | nindent 4 }}
     app.kubernetes.io/component: postfix
   type: {{ .Values.postfix.service.public.type }}
+  externalTrafficPolicy: {{ .Values.postfix.service.externalTrafficPolicy }}
 ---
 apiVersion: apps/v1
 kind: StatefulSet
diff --git a/charts/mok/tests/__snapshot__/postfix_test.yaml.snap b/charts/mok/tests/__snapshot__/postfix_test.yaml.snap
index 0a3b5cdefcce0a24c52d811d95cd323af7d947c6..07b48084be829b5e868ad0297b35aa95fc3ec697 100644
--- a/charts/mok/tests/__snapshot__/postfix_test.yaml.snap
+++ b/charts/mok/tests/__snapshot__/postfix_test.yaml.snap
@@ -13,6 +13,7 @@ should match snapshot:
         helm.sh/chart: mok-1.2.3
       name: RELEASE-NAME-mok-postfix
     spec:
+      externalTrafficPolicy: null
       ports:
       - name: smtp
         port: 25
diff --git a/charts/mok/values.yaml b/charts/mok/values.yaml
index 613a2b342d3f163cf10a7a21b22c89ab9ac7948f..4e19505b2904df98e7e4211ba2c684618f635bcf 100644
--- a/charts/mok/values.yaml
+++ b/charts/mok/values.yaml
@@ -91,6 +91,7 @@ postfix:
     public:
       # -- type of the public endpoint for smtp, submission, and submissions. **Note**: It's configured to share the IP with dovecot in case of metallb
       type: LoadBalancer
+      externalTrafficPolicy: Local
 
   tls:
     # -- secret holding the TLS keys for postfix. **Required**