dnswl.org will remove a workaround-file for Postfix < 2.8 from download on August 31st 2017.
For many years dnswl.org has been distributing a specially formatted file to use dnswl.org data with Postfix prior to version 2.8.
Since Postfix version 2.8 (available since January 2011), the postscreen_dnsbl_sites and permit_dnswl_client directives can be used in a much better and flexible way with dnswl.org data. These two directives are the recommended way to use dnswl.org data with Postfix (see
We will stop publishing the special Postfix-pre-2.8 files on August 31st 2017.