On Apr 23, 2013, at 19:42, Steve Jenkins <stevejenk...@gmail.com> wrote:

> I recently removed TRBLSPAM from my postscreen_dnsbl_sites lists after they 
> went offline earlier this month (this should be a reminder to do the same for 
> anyone here who also used them). That got me wondering about what DNSBL sites 
> others have been successfully using with Postscreen.
> 
> Here's my current setup:
> 
> postscreen_dnsbl_threshold = 3
> postscreen_dnsbl_sites =
>         zen.spamhaus.org*2,
>         b.barracudacentral.org*2,
>         dnsbl.mjabl.org,
>         bl.spameatingmonkey.net,
>         dnsbl.ahbl.org,
>         bl.spamcop.net,
>         swl.spamhaus.org*-4,
>         list.dnswl.org=127.[0..255].[0..255].0*-2,
>         list.dnswl.org=127.[0..255].[0..255].1*-4,
>         list.dnswl.org=127.[0..255].[0..255].[2..255]*-6
> 
> This setup has been working pretty well for me, and reduces false positives 
> by not allowing any single DNSBL to block an incoming connection without 
> concurrence from at least one other DNSBL.
> 
> I'm wondering if others can recommend any other DNSBLs that I should 
> consider, or if anyone has any other feedback on my setup.

We use ZEN, the BRBL and our own local blacklist. All equal weight, 
treshold set at 1, no whitelists yet. Pretty boring, I guess, but it 
works well for us so far.

How many false positives do you get if you use ZEN and BRBL as single 
'decision makers'?

Cya,
Jona

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