Postfix ldap tls

Помогите разобраться с ошибкой, не понимаю что она может означать, доступ на чтение к ключу у postfix имеется

mail:~# postmap -q "bamm@example.com" ldap:/etc/postfix/ldap/local_recipients.cf
postmap: dict_ldap_debug: ldap_create
postmap: dict_ldap_debug: ldap_url_parse_ext(ldap://mail.example.com)
postmap: dict_ldap_debug: ldap_extended_operation_s
postmap: dict_ldap_debug: ldap_extended_operation
postmap: dict_ldap_debug: ldap_send_initial_request
postmap: dict_ldap_debug: ldap_new_connection
postmap: dict_ldap_debug: ldap_int_open_connection
postmap: dict_ldap_debug: ldap_connect_to_host: TCP mail.example.com:389
postmap: dict_ldap_debug: ldap_new_socket: 4
postmap: dict_ldap_debug: ldap_prepare_socket: 4
postmap: dict_ldap_debug: ldap_connect_to_host: Trying 192.168.1.43:389
postmap: dict_ldap_debug: ldap_connect_timeout: fd: 4 tm: 10 async: 0
postmap: dict_ldap_debug: ldap_ndelay_on: 4
postmap: dict_ldap_debug: ldap_is_sock_ready: 4
postmap: dict_ldap_debug: ldap_ndelay_off: 4
postmap: dict_ldap_debug: ldap_int_sasl_open: host=mail.example.com
postmap: dict_ldap_debug: ldap_open_defconn: successful
postmap: dict_ldap_debug: ldap_send_server_request
postmap: dict_ldap_debug: ber_flush: 31 bytes to sd 4
postmap: dict_ldap_debug: ldap_result msgid 1
postmap: dict_ldap_debug: ldap_chkResponseList for msgid=1, all=1
postmap: dict_ldap_debug: ldap_chkResponseList returns NULL
postmap: dict_ldap_debug: wait4msg (infinite timeout), msgid 1
postmap: dict_ldap_debug: wait4msg continue, msgid 1, all 1
** Connections:
* host: mail.example.com  port: 389  (default)
  refcnt: 2  status: Connected
  last used: Sun Nov  9 19:36:43 2008

** Outstanding Requests:
 * msgid 1,  origid 1, status InProgress
   outstanding referrals 0, parent count 0
** Response Queue:
   Empty
postmap: dict_ldap_debug: ldap_chkResponseList for msgid=1, all=1
postmap: dict_ldap_debug: ldap_chkResponseList returns NULL
postmap: dict_ldap_debug: ldap_int_select
postmap: dict_ldap_debug: read1msg: msgid 1, all 1
postmap: dict_ldap_debug: ber_get_next
postmap: dict_ldap_debug: ber_get_next: tag 0x30 len 12 contents:
postmap: dict_ldap_debug: ldap_read: message type extended-result msgid 1, original id 1
postmap: dict_ldap_debug: ber_scanf fmt ({iaa) ber:
postmap: dict_ldap_debug: read1msg:  0 new referrals
postmap: dict_ldap_debug: read1msg:  mark request completed, id = 1
postmap: dict_ldap_debug: request 1 done
postmap: dict_ldap_debug: res_errno: 0, res_error: <>, res_matched: <>
postmap: dict_ldap_debug: ldap_free_request (origid 1, msgid 1)
postmap: dict_ldap_debug: ldap_free_connection
postmap: dict_ldap_debug: ldap_free_connection: refcnt 1
postmap: dict_ldap_debug: ldap_parse_extended_result
postmap: dict_ldap_debug: ber_scanf fmt ({iaa) ber:
postmap: dict_ldap_debug: ldap_parse_result
postmap: dict_ldap_debug: ber_scanf fmt ({iaa) ber:
postmap: dict_ldap_debug: ber_scanf fmt (}) ber:
postmap: dict_ldap_debug: ldap_msgfree
postmap: dict_ldap_debug: TLS: could not use key file `/etc/postfix/certs/postfix_private_key.pem'.
postmap: dict_ldap_debug: ldap_err2string
postmap: error: dict_ldap_connect: Unable to set STARTTLS: 91: Connect error