> Grayhat,

> Where do you have the other settings in the DNSBL 
> section like max replies, max hits, max time, socket 
> timeout, etc.

Lemme "dump" the values...

validaterbl     block
forcerblcache   checked
addrblheader    checked
rblmaxreplies   8
rblmaxhits      2
rblmaxweight    50
rblmaxtime      10
rblsocktime     1
rblcacheexp     4

notice that I've a DNS resolver running on the same
box where ASSP is running so DNS response times
are quite fast :) at any rate I avoided increasing the
maxreplies too much and tuned the rblmaxtime to
be "balanced" with maxreplies; by the way you may
experiment a little and tune the parameters to fit your
own setup; also, and if you want to experiment a little
you may add the following DNSBLs 

virbl.dnsbl.bit.nl 
bhnc.njabl.org 
drone.abuse.ch 
spam.abuse.ch 

putting them (e.g.) at level "2" I have been using them
for a while but since they got really few hits (for my
setup, your may be different) I decided to remove them
yet they may be worth some experimenting

About DNSBL "efficiency"; the simplest way to check it
is to use grep to extract the "[virus]" lines from the ASSP
logs and then further process them to obtain a "hit list"
for the various DNSBLs; by the way, if someone feels
like having some time in his hands and would like to
put together and share a perl script to generate stats
then that would be interesting (and useful) :)

Also, and since we're at filtering and grepping logs;
another routine task on my side is grepping logs to extract
IPs sending to spamtraps (automatically generated ones)
I then process the resulting IP list by sorting the IPs (real
IP sort) removing duplicates and using cymru and senderbase
to retrieve infos about each IP (owner, CIDR range, country...)
I then reprocess the "detailed list" crosschecking it with the
original one (with duplicates) to add hit counts to each IP
and at that point (this time manually) I use the resulting list
to generate a CIDR blocks list to add to "denyalways"; this
helps directly rejecting connections from known and surefire
spambots and avoiding to waste resources with them



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