> I've been using them for years. We do a lot of email (5 mail servers) as
> an ISP.
> 
> I sometimes get network test access for free, for others I have paid.
> It's either a pay big or pay nothing, with no middle ground
> unfortunately. 


> 
> Integrate some sort of private purpose p2p system with spamassassin. All
> the *bl network test managers could constantly "seed" the p2p system
> with up to date data as they create it. The data could have a lifetime

Kinda like the commercial DCC version?
All real time, the DCC servers keep a 2gb VLDB in ram, DCC plugin polls it.
If users report spam (you use the -r option to spamassassin/spamc) or -k
option if NOT spam, then your checksums get 'seeded' in real time to the
upstream.

Even better is the commercial version,  automatically, (with no user
intervention needed), each ip address is scored from 0 to 100% as to its
'bulkiness'

(no, not spammness, bulkyness) as in how many commercial DCC clients have
seen this ip address in conjunction with 'bulk' email.)

I am NOT paying an arm and a leg for commercial access, (I am using it) and
as long as you understand its a sign of BULK, not spam.. You apply your
white/blacklists to bypass DCC checks, you should be ok

Oh and in bugzilla are patches for DCC.pm to support the commercial version,
(which don't go you any good if you are pointed at public servers)

I know some might not like the idea of dual license open source, but I do
find the low cost well worth it, and the lookup times are orders of
magnitude faster then DNS.

If you are an ISP (and pass 100,000 or more queries through, post queue,
into SA), then it might make sense to get the commercial license, get a
local DCC server up and running.

(no, I don't own part of it, but we use it and I am very happy with its
performance and accuracy)



-- 
Michael Scheidell, CTO
>|SECNAP Network Security
Finalist 2009 Network Products Guide Hot Companies
FreeBSD SpamAssassin Ports maintainer


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