Chris Santerre wrote:
When it comes to problematic areas like how to deal with .cn and .kr, we've unfortunately had to push those decisions up to the SpamAssassin layer. The same goes for other RBLs with high collateral damage.
So, regarding access db (Theo's) and RBLs.... Our business has the
unfortunate situation of having to deal with China and Korea. So I'm
wondering if anyone has had problems using either Theo's access.txt and or
the popular RBL services while dealing with these countries? I suppose I
could just turn on the functions, wait for the screams, and whitelist then
:-)
While this may not seem like an SA issue, it is. I'm now trying to take as
much filtering and work off of SA. I've seen many people ask questions with
SA answers that could have been resolved before even getting to SA. So this
makes perfect sense...now :)
My main concern is blocking a proxy or IP subnet that is known for open
relay, but is needed by our company.
I found that I can't outright block .cn and .kr without some customers getting very irritated at me. Even if I could, maintaining a whitelist would be a PITA for entire countries (or, worse, for RBLS like unconfirmed.ordb.org.). So, I figure rather than just ditching those RBLs, I've been relying on them with SA, they do help push many borderline spams over the top.
I do make some exceptions... blatent offenders do get added to access.db (or even the firewall), but I don't do that until they're a drain on resources... or they piss me off somehow (the more offensive porn spam is a good way to get your very own line in my border router's access-list).
The biggest problem, even with using the RBLs with SA, is trying to teach my users what SA is... "a mail filter to identify spam". Too many of our users think it's a magic bullet (or worse, they seem to think that a human somehow makes an individual decision as to spam/nonspam), and get damn unhappy with any incorrect tagging, be it FP or FN. If we could work around that, users might tolerate a very aggresive spam setting on .cn and .kr, for instance.
--Rich
_________________________________________________________
Rich Puhek
ETN Systems Inc.
2125 1st Ave East
Hibbing MN 55746
tel: 218.262.1130
email: [EMAIL PROTECTED]
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