potential blacklist stats

[hermit921]

I put one IP blacklist in place (postfix) and it is blocking about 20% of
incoming mail attempts.  A good start.  Now I want to find the next most
effective (and well documented, low false positive rate, etc)
blacklist.  Is there a way for MailScanner to do a check against several
blacklists such as XBL, CBL, SORBS, etc. and report how many connections
come from an IP address on each list?  Then pick the best one and block
that in postfix.  Repeat cycle as feasible.

This could provide us with some good data to persuade powers that be to
allow us to use more blacklists.  What I really want is to show that [make
up a number here] 30% of what we tag as spam would have been rejected
before it was allowed onto our mail server.

hermit921

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