diff --git a/helm/mail/templates/statefulset.yaml b/helm/mail/templates/statefulset.yaml
index af82962..809eea8 100644
--- a/helm/mail/templates/statefulset.yaml
+++ b/helm/mail/templates/statefulset.yaml
@@ -155,7 +155,6 @@ spec:
           volumeMounts:
             - name: tmp
               mountPath: /tmp
-              name: tmp
             - name: {{ $fullName | quote }}
               mountPath: /var/spool/postfix
               subPath: spool
diff --git a/helm/test_14_test_dns_policy.yml b/helm/test_14_test_dns_policy.yml
index dd0cfa5..9ac057d 100644
--- a/helm/test_14_test_dns_policy.yml
+++ b/helm/test_14_test_dns_policy.yml
@@ -10,4 +10,4 @@ dns:
   options:
     - name: ndots
       value: "5"
-    - name: edns0
\ No newline at end of file
+    - name: edns0
diff --git a/helm/test_15_test_metrics.yml b/helm/test_15_test_metrics.yml
new file mode 100644
index 0000000..db1ecae
--- /dev/null
+++ b/helm/test_15_test_metrics.yml
@@ -0,0 +1,2 @@
+metrics:
+  enabled: true