diff --git a/product/ERP5SyncML/help/install.stx b/product/ERP5SyncML/help/install.stx
index 7f01bab35c3e9e19da737ab5d4f2ab91daa74c35..81603b762500ff562ff7d2b76db3d28e2fe1a9b0 100755
--- a/product/ERP5SyncML/help/install.stx
+++ b/product/ERP5SyncML/help/install.stx
@@ -40,4 +40,9 @@ Setting up Synchronization
 
     Then you have to go on the subscription and hit 'Sync'
 
-    
\ No newline at end of file
+  Configure your mail server
+
+    You should set some aliases so that your mail server will directly sends
+    mail to zope, for example in /etc/aliases :
+
+    seb_syncml: "|/home/seb/erp5/CMFMailIn/sendMailToZope.py http://seb:password@localhost:9673/nexedi.org/portal_mailin/"