On Sat, Dec 23, 2006 at 06:10:12PM +0200, Leon Kolchinsky wrote:
> Hello All,
> 
> Below is a list ob black lists I'm using with main.cf config.
> 
> smtpd_recipient_restrictions =
> .
> .
> .
>             reject_rbl_client zombie.dnsbl.sorbs.net,
>             reject_rbl_client relays.ordb.org,
>             reject_rbl_client safe.dnsbl.sorbs.net,
>             reject_rbl_client list.dsbl.org,
>             reject_rbl_client sbl.spamhaus.org,
> 
> In the weekly logs I can see that the safe.dnsbl.sorbs.net is the hitter of
> the week (or may be it's just logically right cause it's before 2 latter): 
> blocked using safe.dnsbl.sorbs.net (total: 9051)   
> blocked using list.dsbl.org (total: 131)
> blocked using sbl.spamhaus.org (total: 18)
> 
> No entries for zombie.dnsbl.sorbs.net and relays.ordb.org at all.

  ORDB has just shut down in the last week (and was little active
before that.)  See their web page for more info:
  http://www.ordb.org/news/?id=38

  Anyone using ORDB would do well to remove the references ASAP.

  I have unfortunately found SORBS to be often inaccurate, with little
interest in correcting wrong listings in any of their categories. 
(E.g. I've seen cases of dedicated UNIX mailservers mislisted as
Windows zombies, static IP space with mailservers mislisted as dynamic,
etc.) There's good intent behind it, but it's understaffed and it seems
as though some of the volunteers have a bad attitude about correcting
mistakes.  If you still want to use it, be prepare to do some
whitelisting on occasion.

  The Spamhaus SBL is a good choice.  The CBL (read the web page at
http://cbl.abuseat.org/) and NJABL (see page at http://www.njabl.org/)
are also excellent choices.  I believe the maintainers of all these to
be extremely conscientious.  You can query all of these together (one
config line, one DNS lookup!) via the Spamhaus SBL-XBL zone, queried as
sbl-xbl.spamhaus.org.  More info on this combined list at
http://www.spamhaus.org/xbl/index.lasso

  NJABL also has a dynamic IP space list (DUL) via dynablock.njabl.org.
I don't have a good feel for how accurate that is.
 
> I need an advice from powerusers on what bl's are better to use and in what
> order.

  Order isn't really so important, in that for good mail you'll end up
having to query all of them.  I'd try querying the SBL-XBL zone first,
then others.  I have not put any time lately into checking which order
is best.

  -- Clifton

-- 
    Clifton Royston  --  [EMAIL PROTECTED] / [EMAIL PROTECTED]
       President  - I and I Computing * http://www.iandicomputing.com/
 Custom programming, network design, systems and network consulting services

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