uris = ldaps://LDAP1/ ldaps://LDAP2/
base = ANONYMIZED
user_filter = (&(objectClass=posixAccount)(istMailHomeServer=ANONYMIZED)(uid=%u))
user_attrs = \
  =user=%{ldap:uid}, \
  =uid=%{ldap:uidNumber}, \
  =gid=%{ldap:gidNumber}
pass_filter = (&(objectClass=posixAccount)(uid=%u))
iterate_filter = (&(objectClass=posixAccount)(istMailHomeServer=ANONYMIZED))
auth_bind = yes