On Fri, Nov 21, 2003 at 11:02:14PM -0500, [EMAIL PROTECTED] wrote:
> > 
> > sbl.spamhaus.org,
> > list.dsbl.org,
> > relays.visi.com,
> > dnsbl.njabl.org,
> > relays.ordb.org,
> > blackholes.easynet.nl, #not for long
> > dynablock.easynet.nl, #not for long
> > dun.dnsrbl.net,
> > spam.dnsrbl.net,
> > opm.blitzed.org,
> > 
> > Mike
> > 
> > 
> My clients have been using list.dsbl.org, and either bl.spamcop.net or 
> sbl.spamhaus.org as a secondary. Unless you actually keep a local server 
> for the zone, checking more than 2 (or at most 3) DNSBL's in global DNS 
> is asking for potentially long delays on MTA connections. Checking all 
> of the DNSBLs that SpamAssassin checks by default at the MTA level can 
> time out your connections before you clear all the DNSBLs.

Here are the dnsbls I use, the order I use them in, and the number of
matches in the current maillog:

[EMAIL PROTECTED] joliver]$ ./spam.sh
cbl.abuseat.org
   4342
dynablock.easynet.nl
   1938
sbl.spamhaus.org
   1146
dnsbl.sorbs.net
    176
bl.spamcop.net
    427
proxies.blackholes.easynet.nl
      3
list.dsbl.org
     44
dnsbl.njabl.org
     16
relays.visi.com
      4
relays.ordb.org
      3
dialups.visi.com
      0


cbl.abuseat.org is, hands-down, the highest-hitting dnsbl on all mail
servers I admin.  I'm not aware of any collateral damage, but then, I'm
*very* aggressive, and most of my clients happily use SPEWS ;-)  I would
recommend to *not* use bl.spamcop.net at the MTA for a large-scale,
production server... even *they* say not to.  It's too easy to game
SpamCop.

-- 
John Oliver, CCNA                            http://www.john-oliver.net/
Linux/UNIX/network consulting         http://www.john-oliver.net/resume/
*    *    *    *    *    *    *     *    *    *    *    *    *    *    *  
Contribute to the SpamCon Legal Fund!! http://www.spamcon.org/legalfund/


-------------------------------------------------------
This SF.net email is sponsored by: SF.net Giveback Program.
Does SourceForge.net help you be more productive?  Does it
help you create better code?  SHARE THE LOVE, and help us help
YOU!  Click Here: http://sourceforge.net/donate/
_______________________________________________
Spamassassin-talk mailing list
[EMAIL PROTECTED]
https://lists.sourceforge.net/lists/listinfo/spamassassin-talk

Reply via email to