[SURBL-Discuss] Nice URIDNSBL functionality
jm at jmason.org
Mon Nov 1 23:12:26 CET 2004
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> Jeff Chan wrote:
> > It may be worth pointing out that uridnsbl does not look up the
> > IP address of the URI against RBLs, but the IP address of the
> > URI domain's *name server*. It's not the same thing as checking
> > the web server against an RBL, but looking up name servers is
> > quite effective if the RBL contains some addresses of spammer
> > name servers, as sbl.spamhaus.org definitely does.
> I just have to say THANK YOU BILL! I sat down today to accomplish exactly
> this, I thought I had an original idea but it looks like you beat me to it.
> I posted in Bugzilla few days ago to the SA devs that we need this
> I just wanted to querry the websites NS server to see if it's listed in
> SBL-XBL because 9 times out of 10 when I go to report a domain to WS, it's
> almost always listed in SBL-XBL.
> How hard would it be to querry the A record for the domain as well?
hi guys --
the difficulty with the latter is that it's trivial to avoid. a
spammer can do
and just ensure that "49583495849skjldkjfsdio7345809.domain.com" has an A
record, and that "www.domain.com" and "domain.com" do not, and their spam
However no domain can avoid having an NS record for "domain.com".
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