Re: [EXIM] RBL problems

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Autor: Peter Radcliffe
Datum:  
To: exim-users
Betreff: Re: [EXIM] RBL problems
Rick Ballard <RichardBallard@???> probably said:
> I have noticed problems with the various RBL servers over the past
> few weeks. Today, none of
>
>     rbl.maps.vix.com
>     dul.maps.vix.com
>     dssl.imrss.org

>
> are reachable, and in fact can not even be looked up in the DNS,
> although maps.vix.com and www.imrss.org can.


> nslookup rbl.maps.vix.com
> *** dmx1.atl.sofkin.ca can't find rbl.maps.vix.com: Non-existent
> host/domain


You're not taking into account how RBL and DNS in general works.
There is no A record for rbl.maps.vix.com, don't think there ever has been
and there doesn't need to be. It's not a host.

There are NS records, however, which there should be.

pir@mrow> dig rbl.maps.vix.com any
[...]
;; ANSWER SECTION:
rbl.maps.vix.com.       5d16h46m2s IN NS  ns3.above.net.
rbl.maps.vix.com.       5d16h46m2s IN NS  max.bungi.com.
rbl.maps.vix.com.       5d16h46m2s IN NS  ns.eu.net.
rbl.maps.vix.com.       5d16h46m2s IN NS  ns-ext.vix.com.
rbl.maps.vix.com.       5d16h46m2s IN NS  nn.uninett.no.
rbl.maps.vix.com.       5d16h46m2s IN NS  ns2.sztaki.hu.
rbl.maps.vix.com.       22S IN SOA      isrv1.pa.vix.com. rbl.maps.vix.com. (
[...]


To test RBL look up the A and TXT records for the test entry, 127.0.0.2.

pir@mrow> dig 2.0.0.127.rbl.maps.vix.com any | grep '^2\.'
2.0.0.127.rbl.maps.vix.com. 3m19s IN TXT "Blackholed - see <URL:http://maps.vix.com/cgi-bin/lookup?127.0.0.2>"
2.0.0.127.rbl.maps.vix.com. 3m19s IN A 127.0.0.2

Seems to be working fine to me.

\pir

-- 
pir               pir@???      pir@???      pir@???



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