Step :

1. Aktifkan plugin Authentication – LDAP (Extension > Plugin Manager).
2. Lakukan pengaturan di plugin Authentication – LDAP seperti gambar dibawah: Yang harus diisi :
   Host -> isi dengan host Mail Server Zimbra anda (mis. mail.rgiapratama.net)
   Port -> 389
   Authorization Method->Bind Directly as User Base
   DN -> ou=people,dc=rgiapratama,dc=net
   User’s DN -> uid=[username],ou=people,dc=rgiapratama,dc=net
   Connect Username -> uid=zimbra,cn=admins,cn=zimbra (dilihat di file konfigurasi Zimbra)
   Connect Password -> (dilihat di file konfigurasi Zimbra)
   Map: Full Name -> displayName
   Map: E-mail -> mail
   Map: User ID -> uid

1. Edit file \libraries\joomla\database\table\user.php

   		if ((trim($this->email) == "") || ! JMailHelper::isEmailAddress($this->email) ) {
   			$this->setError( JText::_( 'WARNREG_MAIL' ) );
   			return false;
   		}
   

   menjadi

   		if ((trim($this->email) == "") || ! JMailHelper::isEmailAddress($this->email) ) {
      $this->email = $this->username . "@rgiapratama.net";
   		}