I'm learning about whitelist scoring in postscreen_dnsbl_sites= /dev/rob0 mentioned using these
postscreen_dnsbl_sites= ... BLACKLISTS ... swl.spamhaus.org*-4 list.dnswl.org=127.[0..255].[0..255].0*-2 list.dnswl.org=127.[0..255].[0..255].1*-3 list.dnswl.org=127.[0..255].[0..255].[2..255]*-4 in the post at http://rob0.nodns4.us/postscreen.html. One of the servers that's been shown to me has, instead postscreen_dnsbl_sites= ... BLACKLISTS ... dwl.spamhaus.org=127.0.2.[2;3]*-3 swl.spamhaus.org=127.0.2.[12;13]*-3 list.dnswl.org=127.[0..255].[0..255].0*-2 list.dnswl.org=127.[0..255].[0..255].1*-3 list.dnswl.org=127.[0..255].[0..255].2*-4 list.dnswl.org=127.[0..255].[0..255].3*-5 Right now, two questions (1) Does order matter in these? I.e., is postscreen's behavior different whether WHITELISTS are before/after BLACKLISTS? (2) If using Spamhaus for Blacklisting already, why not use 'dwl' too? I guess what I'm really asking is about the "*UNDERSTAND* it *BEFORE* you enable" advice ... how/why to choose 'this' whitelist over 'that'? Jasom