diff --git a/src/config.yaml b/src/config.yaml
index 40450d5..a7ef758 100644
--- a/src/config.yaml
+++ b/src/config.yaml
@@ -109,6 +109,12 @@ options:
     description: |
       Defines the time (in seconds) between retries for the SOA record if the
       slave (secondary) fails to contact the master when refresh has expired.
+  managed-resource-email:
+    type: string
+    default: hostmaster@example.com
+    description: |
+      Define a email to use for managed resources like domains created by the
+      FloatingIP.
   default-ttl:
     type: int
     default:
diff --git a/src/templates/mitaka/designate.conf b/src/templates/mitaka/designate.conf
index 8ff6c53..a883881 100644
--- a/src/templates/mitaka/designate.conf
+++ b/src/templates/mitaka/designate.conf
@@ -84,7 +84,7 @@ workers = {{ options.workers }}
 ## Managed resources settings
 
 # Email to use for managed resources like domains created by the FloatingIP API
-#managed_resource_email = hostmaster@example.com.
+managed_resource_email = {{ options.managed_resource_email }}
 
 # Tenant ID to own all managed resources - like auto-created records etc.
 #managed_resource_tenant_id = 123456
diff --git a/src/templates/queens/designate.conf b/src/templates/queens/designate.conf
index 8843a3d..4dc205e 100644
--- a/src/templates/queens/designate.conf
+++ b/src/templates/queens/designate.conf
@@ -87,7 +87,7 @@ workers = {{ options.workers }}
 ## Managed resources settings
 
 # Email to use for managed resources like domains created by the FloatingIP API
-#managed_resource_email = hostmaster@example.com.
+managed_resource_email = {{ options.managed_resource_email }}
 
 # Tenant ID to own all managed resources - like auto-created records etc.
 #managed_resource_tenant_id = 123456
diff --git a/src/templates/rocky/designate.conf b/src/templates/rocky/designate.conf
index 30cf307..d86596f 100644
--- a/src/templates/rocky/designate.conf
+++ b/src/templates/rocky/designate.conf
@@ -87,7 +87,7 @@ workers = {{ options.workers }}
 ## Managed resources settings
 
 # Email to use for managed resources like domains created by the FloatingIP API
-#managed_resource_email = hostmaster@example.com.
+managed_resource_email = {{ options.managed_resource_email }}
 
 # Tenant ID to own all managed resources - like auto-created records etc.
 #managed_resource_tenant_id = 123456