Greetings, I am trying to configure Postfix to gracefully deal with the failure of the LDAP server it uses for alias resolution.
It's working fine, using the LDAP server to resolve u...@domain.com to u...@somehost.domain.com, but if the LDAP server dies or becomes unreachable for whatever reason, Postfix replies with 5xx error codes about the user being invalid. Is there a way to configure it to return 4xx codes so the remote end tries later? Having a backup LDAP server is fine, but I would like to cover all possibilities. Thanks! -jav
