[OT] Re: dnsbl

[Tom Anderson]

This is why I suggested only the objective lists created by directly testing 
for open proxies/relays and bad MX setups, and also well-known spammers (if 
you want).  I specifically warned against subjective lists which take user 
input, or those which list dynamic IP ranges from ISPs.  I've been 
monitoring my logs for FPs, and I haven't gotten any yet.  Most of the 
addresses are obvious spammers, like letsgohome.biz, t3media.net, 
ideal-opps.com, etc., and of course IP-only addresses.  Moreover, sendmail 
will bounce any rejected mail with the message saying why it was rejected, 
and where to go to stop being rejected.  If someone legitimate is trying to 
contact you, they'll know they didn't get through (unlike a bad Bogofilter 
classification which could be simply deleted), and they'll either contact 
the dnsbl owner to get removed, or they'll contact you in another way, like 
by phone or alternate email provider.  For this reason, I'm less concerned 
about false positives.  If you know of specific lists to avoid, though, 
please speak up.  I've been warned against using SpamCop due to their use of 
user submissions.  And as I've said, I would avoid any that list dynamic IP 
ranges from ISPs.

Tom


----- Original Message ----- 
From: "Clint Adams" <schizo at debian.org>
To: "bogofilter" <bogofilter at bogofilter.org>
Sent: Wednesday, November 10, 2004 10:48 AM
Subject: [OT] Re: dnsbl


> On Wed, Nov 10, 2004 at 07:43:36AM -0800, Jef Poskanzer wrote:
>> You really want to be careful with those.  My experience is that
>> almost all of the DNS lists are run by jackasses on power trips.
>
> Who don't care about false positives and collateral damage.
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