Hello Wietse, Thank you for replying. I understood what the problem is.
-- Hiroyuki Sato. 2017-01-25 1:28 GMT+09:00 Wietse Venema <wie...@porcupine.org>: > Hiroyuki Sato: >> 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. > > Postfix gets the information from THE SYSTEM LIBRARY FUNCTION > getpwnam_r(). > > * If getpwnam_r() reports DOESNOTEXIST then Postfix MUST report > that the user does not exist. > > * If getpwnam_r() reports an ERROR, then Postfix will reply with > 4xx. > > If getpwnam_r() reports DOESNOTEXIST when LDAP is down, either the > PAM LDAP client, or code between getpwnam_r() and the PAM LDAP > client, are mis-reporting the error condition. > > Please file a bug with your system provider, so that people are not > losing email because of a mis-reported error with LDAP. > > Wietse -- Hiroyuki Sato
