diff --git a/MailServerInstall.md b/MailServerInstall.md
index 286cd2f..a56036d 100644
--- a/MailServerInstall.md
+++ b/MailServerInstall.md
@@ -263,7 +263,7 @@ Editer `/etc/courier/authmysqlrc`
 root@serveur:~# vim /etc/courier/authmysqlrc
 ```
 
-Modifier:
+**Modifier:**
 ```text
          `MYSQL_USERNAME`
          `MYSQL_PASSWORD`
@@ -276,10 +276,10 @@ Modifier:
          `MYSQL_HOME_FIELD` -> "/var/spool/vmail"
 ```         
          
-Commenter: `MYSQL_NAME_FIELD`         
+**Commenter:** `MYSQL_NAME_FIELD`         
 
 
-Ajouter: `MYSQL_MAILDIR_FIELD` -> CONCAT(SUBSTRING_INDEX(email,'@',-1),'/',SUBSTRING_INDEX(email,'@',1),'/')
+**Ajouter:** `MYSQL_MAILDIR_FIELD` -> CONCAT(SUBSTRING_INDEX(email,'@',-1),'/',SUBSTRING_INDEX(email,'@',1),'/')
 
 ### Redemarrage des services