Comment 2 for bug 764096

I'm using LDAP maps for aliases, but since i upgraded to natty the LDAP lookup does not anymore, since i get the following error messages from postfix:
Apr 30 13:37:22 host postfix/cleanup[30160]: dict_ldap_debug: ldap_connect_to_host: TCP ldapmaster.domain.com:389
Apr 30 13:37:22 host postfix/cleanup[30160]: dict_ldap_debug: ldap_connect_to_host: getaddrinfo failed: Name or service not known
Apr 30 13:37:22 host postfix/cleanup[30160]: dict_ldap_debug: ldap_err2string
Apr 30 13:37:22 host postfix/cleanup[30160]: warning: dict_ldap_lookup: Search error -1: Can't contact LDAP server
Apr 30 13:37:22 host postfix/cleanup[30160]: warning: AF28B226A2: sender_canonical_maps map lookup problem for <email address hidden>