diff --git a/README.rst b/README.rst
index be0c9b6..a3a5412 100644
--- a/README.rst
+++ b/README.rst
@@ -133,6 +133,17 @@ If you want to disable mail backup::
  
 This can be useful for larger instance
 
+Restore mode
+------------
+
+An experimental restore mode is available.
+
+You can start the process as follows::
+
+  $ sudo ./run.py --restore /path/to/backup/directory/ <your domain>
+
+Then wait for the process to finish
+
 Change the generated hostname
 -----------------------------
 
diff --git a/modoboa_installer/scripts/postfix.py b/modoboa_installer/scripts/postfix.py
index 607a905..fc1a8f2 100644
--- a/modoboa_installer/scripts/postfix.py
+++ b/modoboa_installer/scripts/postfix.py
@@ -97,4 +97,4 @@ class Postfix(base.Installer):
             utils.exec_cmd("postalias {}".format(aliases_file))
 
         # Postwhite
-        install("postwhite", self.config, self.upgrade)
+        install("postwhite", self.config, self.upgrade, self.restore)