Launch Address Book in Thunderbird. Create new LDAP server.
Enter the server details as shown. Replace “uid=admin” with “uid=<username>”.
Goto Edit → Preferences. Under Composition select the Entic.net server for Address Autocompletion.
Customize Thunderbird LDAP configuration. Select Config Editor in the Advanced preferences window as shown.
Enter attrmap in the Filter field. Make changes as shown.