diff --git a/MailServerInstall.md b/MailServerInstall.md
index a08aca1..ecd3d04 100644
--- a/MailServerInstall.md
+++ b/MailServerInstall.md
@@ -107,4 +107,11 @@ smtp inet n - - - - smtpd
         table = comptes
         select_field = quota
         where_field = email
-    ```
\ No newline at end of file
+    ```
+    
+### Ajout du groupe et de l'utilisateur `vmail`
+
+```console 
+root@serveur:~# groupadd -g 5000 vmail 
+root@serveur:~# useradd -g vmail -u 5000 vmail -d /var/spool/vmail -m 
+```
\ No newline at end of file