diff --git a/helm/mail/templates/hostname-script.yaml b/helm/mail/templates/hostname-script.yaml
new file mode 100644
index 0000000..70a2ea5
--- /dev/null
+++ b/helm/mail/templates/hostname-script.yaml
@@ -0,0 +1,20 @@
+{{- if .Values.GenerateHostName.enabled }}
+{{- $chart := "mail" -}}
+{{- $fullName := include (print $chart ".fullname") . -}}
+{{- $labels := include (print $chart ".labels") . -}}
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: hostname-init
+  labels:
+    {{- $labels | nindent 4 }}
+data:
+  set_hostname.sh: |
+    #!/usr/bin/env bash
+    # This should be placed under /docker-init.db/set_hostname.sh
+    IP=$(curl http://ipinfo.io/ip)
+    IP=$(echo "$IP" | tr '.' '-')
+    PREFIX={{- .Values.GenerateHostName.prefix -}};
+    DOMAIN={{- .Values.GenerateHostName.domain -}};
+    postconf -e "myhostname=${PREFIX}-${IP}.${DOMAIN}"
+{{- end }}
\ No newline at end of file
diff --git a/helm/mail/templates/statefulset.yaml b/helm/mail/templates/statefulset.yaml
index 7b3ef7e..4ef984d 100644
--- a/helm/mail/templates/statefulset.yaml
+++ b/helm/mail/templates/statefulset.yaml
@@ -132,6 +132,10 @@ spec:
               readOnly: true
             {{- end }}
             {{- if .Values.extraVolumeMounts }}{{- toYaml .Values.extraVolumeMounts | nindent 12 }}{{ end }}
+            {{- if .Values.GenerateHostName.enabled }}
+            - mountPath: "/docker-init.db/"
+              name: hostname-init
+            {{- end }}
           resources: {{ toYaml .Values.resources | nindent 12 }}
         {{- if .Values.metrics.enabled }}
         - name: exporter
@@ -218,6 +222,12 @@ spec:
             name: {{ print $fullName "-scripts" | quote }}
             defaultMode: 0777
         {{- end }}
+        {{- if .Values.GenerateHostName.enabled }}
+        - name: hostname-init
+          configMap:
+            name: hostname-init
+            defaultMode: 0777
+        {{- end }}
         {{- if .Values.extraVolumes }}{{- toYaml .Values.extraVolumes | nindent 8 }}{{ end }}
   {{- if and .Values.persistence.enabled (not .Values.persistence.existingClaim) }}
   volumeClaimTemplates:
diff --git a/helm/mail/values.yaml b/helm/mail/values.yaml
index 2efa6a9..d1046ad 100644
--- a/helm/mail/values.yaml
+++ b/helm/mail/values.yaml
@@ -152,6 +152,12 @@ mountSecret:
     #   < redacted >
     #   -----END RSA PRIVATE KEY-----
 
+# if the following is true, config.prefix.myhostname should not be set
+GenerateHostName:
+  enabled: false
+  domain: example.com
+  prefix: smtp
+
 config:
   general: {}
     # e.g.