Update README.md

README.md

@@ -84,7 +84,7 @@ Check user exist :
 [adsi]"$LDAP_USER_CONNECTION_STRING"
 ```
 
-
+Check AD auth  : 
 ```powershell
 Function Test-ADUserAuthentication {
     param(
@@ -102,9 +102,14 @@ Test-ADUserAuthentication -ADUserLogin $ADUserLogin -ADUserPassword $ADUserPassw
 
 ```
 
+Check Member of a group :
 
+```
+Import-Module ActiveDirectory
+Get-ADGroupMember $GROUP_NAME | select name,distinguishedname 
+```
 
-Client SMTP
+## Client SMTP
 SMTP Parameters
 SMTP Test with Mail command
 SMTP Testing with Telnet