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Lyle M

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It seems I'm a little too lazy (or too busy) to figure this out on my own...

In our KMS scenario, I find that blacklisting by country IP range has the most significant impact on our spam control. For every inbound message, the server has to connect to:
argentina.blackholes.us; brazil.blackholes.us; china.blackholes.us; korea.blackholes.us; nigeria.blackholes.us; and russia.blackholes.us.

This generates quite a bit of net traffic and numerous entries in the warning log about DNS failures while trying to find sending IP addresses on those blacklists.

blackholes.us is slammed enough as it is, so I'd love to find an easy way to utilize their countries.rbl file (or someone else's) locally for this function. I'd entertain ways of appending the data to my local blacklist files (without having to manually enter them via the admin console), or utilizing the SpamAssassin engine in some way.

If anyone has a quick and elegant solution for this I'm all ears.

Regards,
Lyle Millander
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freakinvibe

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I would create the blackholes.us zone on your DNS server and then do a zone transfer, so all this lookups would happen locally. I don't know if blackholes.us supports zone transfers, though.

Just send them a mail, they might help.

Regards, Pascal

Dexion AG - The Blackberry Specialists in Switzerland
https://dexionag.ch
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Lyle M

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Thanks Pascal! I'll give that a shot.

My DNS skills are a bit rudimentary, but at least now I have a direction on which to focus.

Regards,
Lyle
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