for setting up some mailing lists I don't want to list the users mail addresses directly in the group (as in the LDAP-Howto #1), nor would I like to use the dn (as in Example #2).If you don't want to do it the right way, you get to do it the hard way, whatever that is.
amazing ... Supposedly this is to mean: "Use the DN, it shouldn't change." I can't change the LDAP setup.