Hello, Wietse Thank you for replying.
You mean that the Postfix server should not stop connection to LDAP server? Even it is OS issue, can I change unknown user status? I set up NSS(nslcd) and PAM config for LDAP on CentOS6. And I got the following error when the postfix server can't connect to LDAP server. During this message, a user(in LDAP) lookup fail. nslcd.conf passwd: files ldap shadow: files ldap group: files ldap error Jan 23 00:31:43 host nslcd[1498]: [3cabfd] failed to bind to LDAP server ldaps://xxx.xxx.xxx/: Can't contact LDAP server: Transport endpoint is not connected Jan 23 00:31:43 host nslcd[1498]: [3cabfd] no available LDAP server found Thank you for your advice. 2017-01-24 20:36 GMT+09:00 Wietse Venema <wie...@porcupine.org>: > Hiroyuki Sato: >> Hello, members. >> >> Is it possible to return 4XX value of the >> unknown_local_recipient_reject_code, >> when the mail server can't connect to LDAP server? > > How does POSTFIX call the LDAP server? If it is done > via PAM_LDAP, please file a bug with your OS vendor > that PAM_LDAP mis-handles server errors. > > Wietse > > TO REPORT A PROBLEM see http://www.postfix.org/DEBUG_README.html#mail > > TO (UN)SUBSCRIBE see http://www.postfix.org/lists.html > > Thank you for using Postfix. -- Hiroyuki Sato
