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.
Thanks,
SteveJ
