[CentOS] Sendmail using LDAP authentication problem

Hi , all ;

      My openldap is running fine . Sendmail  configuration is done. I want
to use LDAP authentication only.
      User of my mailserver should not have a Linux users .

       I am running CentOS 5.3 i386 . Openldap-2.3.43-3.el5 ,
sendmail-8.13.8-2.el5

       All the software is already installed and running . LDAP has the
following tree:
                 uid=xxx, ou=People, dc=test, dc=com

       I want to know what I've to change which configuration file and any
pointer to the doc with clearly says the configuration .

        Any help will be  appreciated. Please I am kind of stuck and waiting
for anyone who can clear this cloud.




     Thank you in advance ~
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