$rcmail_config['address_book_type'] = 'ldap';

$rcmail_config['ldap_public']['Addbook'] = array(

'name' => 'foo.com',

'hosts' => array('localhost'),

'port' => 389,

'use_tls' => false,

'user_specific' => false,

'base_dn' => 'dc=mail,dc=foo,dc=com',

'LDAP_Object_Classes' => array("top", "inetOrgPerson"),

'required_fields' => array("cn", "sn", "mail"),

'LDAP_rdn' => 'mail',

'search_fields' => array('mail', 'cn'),

'name_field' => 'cn',

'email_field' => 'mail',

'surname_field' => 'sn',

'firstname_field' => 'gn',

'sort' => 'cn',

'fuzzy_search' => true,

'sizelimit' => '0',

'timelimit' => '0',

);

$rcmail_config['autocomplete_addressbooks'] = array('ldap','foo.com');

$rcmail_config['autocomplete_min_length'] = 1;

After saving main.inc.php, I can no longer access Addressbook Tab. Probably of the wrong settings in my ldap. I can query ldap when I do ldapsearch -x -b 'dc=mail,dc=foo,dc=com'. The settings above is based on the default file main.inc.php. I just followed the procedures.